â€‰Information from the Hoval Group
2017 | No. 1
The purest form of insanity is to leave everything as it is and at the same time hope that things will change Albert Einstein
Insights 2017 | No. 1
Lots of us were pleasantly surprised when a global climate
We stand for responsibility for energy and the
agreement was brokered in Paris in December 2015. The
environment and advocate sustainable, environmentally
agreement entered into force at the start of November 2016
friendly solutions for generating heat. Nevertheless, we
after being ratified by more than 70 states. However, this
have to attest to the fact that converting an old heating
agreement alone will not save our climate.
system to use condensing technology in combination with solar thermal energy is definitely a better and more sensible
The fact that around a third of the energy consumption in
option than not upgrading. With regards to new buildings,
Europe can be attributed to heating rooms and drinking
we are confident that heat pumps and comfort ventilation
water and an average household uses around 80% of its
will become more and more common.
energy on this cannot be brought up often enough. The EU, the individual member states and Switzerland
We are keen to see how the Paris Agreement and the
already formulated objectives for the heating sector prior
various state measures will impact the heating market.
to this summit, which we will present in these “insights”.
However, it would be too easy to put all our hopes on policy measures. We all need to make our own contribution and
With our products and system solutions, we are optimally
pique end customers’ interest in upgrading their heating
prepared for these objectives. These objectives are incredibly
systems. It is precisely at this moment when the interest
important, but it is also important to make sure that they do
rate is low that such an investment is often also financially
not achieve the opposite and result in more and more people
interesting, as examples in these “insights” show. In
postponing having their heating systems upgraded. If no one
addition, connecting our systems to the Internet – whereby
is encouraged to upgrade and if upgrading systems also
weather forecasts are taken into account with regard to
becomes more expensive because of the new regulations,
controlling the heating system – offers customers significant
the risk of people continuing to resist system upgrades is
added value and the potential to make savings. There are
high. With the low energy prices at present, we continue to
good reasons for upgrading old heating systems now!
find that the motivation for investing money in having a heating system upgraded is relatively low. This is also reflected in
As Albert Einstein said: “The purest form of insanity is to
the fact that in 2016 – one year after Paris – fewer heat
leave everything as it is and at the same time hope that
generators were bought in Switzerland, Austria and Germany
things will change.”
than the previous year. In Switzerland, the market has even nosedived by 15% over the last three years and is at its lowest level in the last ten years. Peter Gerner, Management Board Hoval Group / CEO Heating Technology
For Hoval, every year is a year of football: so that the teams always have enough hot water to have showers and the rooms are pleasantly warm, stadium managers prefer to use a high-performance system from Hoval.
“A heat pump is not only interesting in terms of ecology, but saving money too”. Dr Max Egli’s experiences in his own home are overwhelmingly positive, which is why he also decided to use heat pumps when building two apartment blocks in the Swiss village of Rikon.
Insights 2017 | No. 1
The wellness hotel, Panorama Royal, in the Austrian municipality of Bad Häring is a source of energy and power – now in the literal sense too: A Hoval combined heat and power plant generates the electricity required and also independently covers the heating requirements.
Located on the SĂ¤ntis, more than 2500 metres above sea level, this hotel occupies a wonderful position in the first row of the Swiss Alps where it looks down upon the breath-taking scenery. Those who go up via the aerial cableway may choose to stay overnight in the new hotel at the lower terminus on the SchwĂ¤galp. This new modern building incorporates environmentally friendly technology.
Consistent temperatures in high-tech manufacturing processes. For the premises where exclusive interiors for business aircraft and private jets, yachts and villas are produced, the climate always has to be just right. F/List GmbH relies on climate technology from Hoval.
Brand, a 700-person village in Vorarlberg, Austria, is making headlines with its new school and multi-purpose building, which is currently the most ecological new public construction in the province. Whatâ€™s more, the municipality would like to supply all communal buildings and facilities with its own source of electricity and equip these with corresponding heat pump systems. This is where Hoval plays a role.
Energy efficiency and the lowest possible CO2 emissions are the order of the day. Global climate objectives take precedence. Next to sun, wind, geothermal energy and biomass, is gas still even justified?
In focus: Climate change.
Climate protection in Europe: the consequences for the heating sector It was a historical success at the last minute – as many will recall. On the evening of the extra day of the 2015 UN Climate Conference in Paris, the objective was clear: The temperature increase caused by global warming should be restricted to less than 2°C and to 1.5°C wherever possible. The European Union had already formulated its energy policies and there are now country-specific laws and guidelines based on these. It’s not just the “1.5°C” objective that packs a punch – Europe is also faced with the “3 x 20” challenge: By 2020, the EU wants to reduce CO2 emissions by 20%, increase energy efficiency by 20% and obtain 20% of its energy requirements from renewable sources. With this in mind, the heating sector also faces challenges – particularly as around 40% of the total energy consumption can be attributed to heating rooms and drinking water. Buildings that supply their own energy The key concept is “energy efficiency” – from 2019, public buildings that are newly constructed must have an energy footprint that practically does not exist; they are to cover any remaining energy requirements using renewable sources if possible. Directive 2010/31/EU will apply to all other new buildings from 2021. This means that from 2021, all new buildings in the EU must largely supply themselves with electricity and rely on renewable energy. The use of waste heat and cold, including from district heating and cooling, as well as cogeneration are becoming increasingly important. Targeted load control – “smart grid” and “intelligent building technology” being key terms here – is also gaining in importance against this backdrop. Germany From 1 January 2016, new buildings in Germany must exhibit 25% lower primary
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energy consumption. The German Energy Saving Ordinance (Energieeinsparverordnung [EnEV]) of 2014 is a basis of comparison for the 2016 version. In addition, the building shell of new buildings must feature 20% better insulation. According to the Renewable Heat Law (Erneuerbare-Energie-Wärmegesetz [EEWärmeG]), which was also enacted in Germany, new buildings must use renewable energies. As such, 15% of the energy requirements must be covered with solar energy or 30% must be covered with biogas or 50% with a heat pump, for example. Germany plans to merge the “EnEV” ordinance and “EEWärmeG” law.
The Federal Association of German Heating Industry (BDH) has set ambitious technology objectives: Approximately 70% of the 20.5 million heating systems in Germany are currently classified as the relatively low energy efficiency classes C and D. The objective is to reduce this proportion to 0 and a maximum of 10% by 2030. To do this, 90 to 100% of the systems need to be in the A, A+ or A++ class. This approach could reduce Germany’s final energy consumption by 15% by 2030. To achieve this goal however, the upgrade rate for oil burners needs to increase six fold and the rate for gas burners needs to double.
The energy consumption… …of an average household. Lighting
Room heating Electrical devices
What are your views on the objectives set out by the EU and Switzerland? For many years now, the heating sector has not been given the consideration it deserves by those in the world of politics. People have preferred to discuss the emotional subject of electricity. However, we all know Peter Gerner that in an average household, around 80% of the energy is used to heat rooms and provide hot water and that with current investment holdings, there is an enormous potential for savings. As such, it is really positive that the subject is now being tackled more consistently in terms of responsibility for energy and the environment. What do these regulations mean for Hoval? Italy places emphasis on photovoltaics From 1 January 2017, Italy has stipulated the use of photovoltaics as a matter of principle for new buildings of any size and for the renovation of buildings with a living 2 area of more than 1000 m . However, solar panels may not be elevated for aesthetic reasons; the panels must be integrated into façades and roofs. Another specification: Half of the energy for heating industrial water and half of all the energy used for heating, providing hot water and cooling must come from renewable sources. For public buildings, the values are increased by 10%. Switzerland relies on cantonal laws The Model energy standards for cantons (“Mustervorschriften der Kantone im Energiebereich” [MuKEn]) have been amended on the basis of Energy Strategy 2050 for Switzerland. The cantons have until 2018 to convert these general model standards into cantonal laws. The model standards stipulate that the party creating the respective new building(s) must independently produce at least 10 watts of electricity per square metre of energy reference area, which will have the effect of intensifying the trend towards using photovoltaics. Furthermore, only heat generators that use renewable energy are deemed suitable for new buildings. Today, heat pumps combined with a controlled residential ventilation system or thermal solar collectors are already installed in 85% of the new buildings in Switzerland. Existing buildings with energy efficiency classes lower than D must obtain at least 10% of the required amount of energy from renewable sources following renovation. Younger buildings, built from 1990 onwards for example, and extensively insulated older houses are likely to achieve class D classification and can therefore replace a gas or oil boiler with a condensing boiler. On the whole however, bivalent systems, which rely on fossil fuels and renewable energy or entirely on renewable energies, are becoming even more common.
We are optimally prepared. We are also very well positioned in the field of alternative energy and controlled comfort ventilation. Thanks to our sophisticated system technology ® and the opportunities offered by the TopTronic E platform, we can also provide integrated complete solutions in the field of bivalent systems (fossil fuels combined with alternative energy). In this context, our expertise and experience in the district heating sector are also becoming more and more attractive. Do you also see any threats because of these regulations? It is possible that fewer people will be willing to have their heating systems upgraded. Generally, the regulations do not say that upgrades have to be carried out – they only say how they are to be carried out. The associated additional costs may result in upgrades being delayed. It therefore seems important to me that the option of a condensing boiler combined with solar thermal energy as a reasonably priced alternative must be a consideration. For more about this, please see page 30/31. Ultimately, this is still much better for our environment than doing absolutely nothing. And we should not forget that biogas and bio oil are becoming increasingly important. Will innovative technologies such as fuel cells win the race as a result of these regulations? I am sceptical that technologies in the lower output range, such as fuel cells, will become quickly established. The majority of people are not ready to pay a considerably higher amount for technology operated with fossil fuels as cost-effectiveness cannot be calculated in this output range. At Hoval, we focus much more on our solution expertise – ® on smart systems combined with our intelligent TopTronic E controller platform. We see significantly more potential here in the medium term. Taking into account current weather forecasts or the latest energy prices for the intelligent control of bivalent systems are just two examples that can result in significant benefits.
In the market: Germany.
YADOS is integrated into the Hoval family Partner companies Hoval and YADOS are moving closer together: Hoval has acquired 100% of the shares in YADOS GmbH. The YADOS brand name will continue to be used and the YADOS site in Hoyerswerda will be fitted out to become a competence centre and production facility. The two companies complement each other perfectly and therefore merged within twelve months: Hoval is the expert for heating, ventilation and cooling and YADOS GmbH, located in the German town of Hoyerswerda, is specialised in local and district heating as well as combined heat and power plants. Hoval has held a substantial stake ever since YADOS was founded back in 2009. With YADOS being completely integrated into the Hoval Group, expertise is being pooled and market shares are strengthened. With a 100% stake, Hoval is consolidating its expertise as a supplier of superior and well-engineered system solutions. Peter Gerner, CEO of the Heating Technology division in the Hoval Group explains: “Local and district heating is an intelligent solution – including within the meaning of our central principle ‚responsibility for
energy and the environment’ – and is significantly growing in importance. We are pleased to have created a win-win situation with this partnership”. All parties concerned are requested to manage existing customer relationships established by YADOS in the same way and with the same level of quality, Peter Gerner adds. The service package offered by Saxon company YADOS covers four fields: energy production, heat compact stations, heat distribution stations and control and communication technology.
As a result of the union, YADOS gets access to Hoval’s export markets and benefits from an established infrastructure and knowledge transfer on a technical level. Jörg Wolf, who gives an initial, very positive summary of the union, will continue to manage the commercial operations of YADOS: “As a competence centre for district heating and energy technology, we have been given an important key position in the Hoval Group. This strengthens Saxony as a location for business and supports the solid course for growth undertaken by YADOS”.
Existing customer relationships established by YADOS are managed in the same way and with the same level of qualilty.
On the premises of YADOS GmbH, established in 2009 in the German town Hoyerswerda, the Hoval flag has also been waving since the union.
Insights 2017 | No. 1
In the market: Sweden.
Hoval Enventus: the perfect partner for energy recovery Hej! Hoi! Just by looking at customary greetings it is possible to see that Sweden and the Principality of Liechtenstein have more similarities than you might think. In the field of energy recovery, Swedish company Enventus and Hoval found so many similarities that they have joined together to create joint brand “Hoval Enventus”. Enventus as a specialist for rotary heat exchangers and Hoval as a top supplier of plate heat exchangers are the perfect match – two major suppliers found each other and together they can offer their customers even more than before. Since merging, Hoval and Enventus
have appeared in many markets together as reliable suppliers of the technically superior energy-recovery solutions of today and tomorrow. Customers are receiving the comprehensive range of what the brand has to offer extremely positively.
Over the past few months, the teams in Sweden and Liechtenstein have grown together in a virtually ideal way. The fact that the company cultures in Jönköping and Vaduz are very similar has been really helpful throughout the process.
Both companies are worldwide leaders with their rotary and plate heat exchangers: The Hoval Enventus team from the Swedish city of Jönköping has already integrated itself into the Hoval Group in the best way possible.
In the market: China.
In-house production in China In light of the growing market in China, Hoval is now manufacturing on-site. Near Peking, in Langfang, Peter Frick, President of the Board of Directors, Fabian Frick, CEO of Climate Technologies and Development of New Markets, and Bin Song, CEO of Hoval China, officially opened the new production hall. Hoval has operated in China for a good 30 years now – with distribution partners to start with and then with its own distribution company for the past 13 years. The market in China has developed significantly in the last few decades – as has distribution company; Hoval Oriental. To be able to respond to market needs in a more flexible manner and achieve further growth, the executive board decided to construct Hoval’s own production facilities, making it possible for the company to manufacture the solutions required for the Chinese market directly on-site, both in the heating technology and air-conditioning
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technology sector. Hoval is thereby giving itself more opportunities to open up new market segments as well as further develop and consolidate its position in the Asian market. Peter Frick describes the production hall in Langfang as a long-term investment in an ever-growing market. In the future, wind energy and cooling solutions, systems for energy recovery ® and the HomeVent comfort ventilation systems are to be manufactured on-site for the Chinese market. Image at the top: Bin Song, the CEO of Hoval China (left), leads Peter and Fabian Frick through the new hall. Image at the bottom: Beforehand, the three gentlemen cut through the ribbon together.
News in brief.
LIECHTENSTEIN: PETER FRICK IS 75 President of the Board of Directors at Hoval, Peter Frick, celebrated his 75th birthday on 8 June 2016. The executive board joined in with the celebrations and wish Peter Frick continued luck, health and all the best for the future.
Peter Frick (centre) receives congratulations: from left Richard Senti (CFO of the Finance & Services division), Fabian Frick (CEO of Climate Technologies and Development of New Markets), to the right of Peter Frick, Dr Max Egli (Vice President of the Board of Directors) and Peter Gerner (CEO of the Heating Technology division).
SWITZERLANDAUSTRIA That was a brilliant afternoon and evening for the staff at Hoval Switzerland! They came from all areas of the country to meet in the centre of Switzerland in the Swiss Museum of Transport, where the history of Swiss rail, street and air transport is brought to life. However, what was more important than visiting the museum was being together and celebrating the 70-year anniversary. There was lots of chatting, laughter and fine food. “It was a lot of fun for us trainees to be a part of this fantastic celebration”, wrote Nanda Brägger and Nadja Pinelli. “We also got to know other staff members that we otherwise only hear on the phone. Our dealings with each other are now much more personal”. 70 years – and the start of something new.
When a major anniversary, such as 70 years, comes up, then there is a real reason to celebrate: Hoval Austria invited people to take part in a competition on its website. Around 600 people took part in order to win one of the – drum roll! – 70 prizes available. The main prize was worth EUR 1000: a voucher redeemable when purchasing a Hoval product. The 70-yearanniversary was the main focus on Facebook: Hoval Austria looked back at the milestones in the company’s history. And to top it all off, the anniversary was then applauded at the in-house Christmas party. The activities motivated and rejuvenated the staff: in any case, the team from Hoval Austria has embarked on its 71st year with great enthusiasm.
In operation: Football in Europe.
Hoval keeps the football community For Hoval, every year is a year of football: so that the teams always have enough hot water to have showers and the rooms are pleasantly warm, stadium managers prefer to use a high-performance system from Hoval. In the world-famous Wembley Stadium in London, for example, the entire building complex and grass pitch are heated by Hoval. Lots of other clubs in the English Premier League also rely on Hoval quality solutions. Over 25% of the clubs in the Premier League use system technology from Hoval for their heating requirements. With other systems throughout Europe, Hoval keeps the football community happy with quality solutions
England: The Emirates Stadium for English Premier League football club Arsenal was built in 2006 and provides spaces for approximately 60,000 fans.
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England: The King Power Stadium has seats for around 32,000 people to cheer on their team, Leicester City, whose players are also called the â€œFoxesâ€?.
Italy: AS Roma hold their home games in the Olympic stadium – the “Stadio Olimpico di Roma” where approximately 72,000 spectators can root for their team.
France: Three group matches and a round before the quarter-final of the 2016 European Championship were held in the “Stade Bollaert-Delelis” in Lens.
Austria: The “Allianz Stadion” in Hütteldorf (Vienna) is brand-new; it opened on 16 July 2016 as the new home of the “Rapid Wien” football club.
In operation: Switzerland.
A heat pump will not only help the environment, but help save money as well 27 years ago, Max Egli decided to opt for a brine/water heat pump for the first time. His experiences with the pump in his private home were overwhelmingly positive, which is why he also decided to use heat pumps when building two apartment blocks. Mr Egli – pondering ecological questions is in your blood: You studied at the Swiss Federal Institute of Technology in Zurich to become a chemical engineer and completed your studies with a doctorate degree. When it comes to answering questions regarding heating, you have more than just technical knowledge. With regard to heat pumps – can Dr. Max Egli you outline what you know? Or specifically – what advantages does a brine/water heat pump offer in your eyes? Max Egli: A heat pump is not only interesting in terms of ecology, but saving money too. In terms of maintenance, it requires practically no effort or outlay and it is easy to manage. I can use one adjective to describe the operation: problem-free. A heat pump practically runs by itself. For the two three-floor apartment buildings that you have had built in accordance with the Minergie-P standard, you ® chose both a Hoval Thermalia twin geothermal energy
pump and a Hoval Thermalia ® twin ground water heat pump as well as a 2000-litre hot water reservoir. How do the 18 people renting the apartments benefit from this technology? Max Egli: I calculated the operating costs in advance – they are very low. As such, the ancillary expenses for the renters remain relatively low. What was on offer was attractive at any rate: all of the apartments were rented out within two months. By that time, my projected figures proved to be 100% accurate: from the annual ancillary costs, 6264 francs go on the electricity for the heat pump in order to heat the rooms and 2 water. In the case of a total heated area of 1635 m , this results in annual electricity costs of just 3.85 francs 2 per m . This is an extremely low number compared with the average amount calculated by a Swiss consultancy firm; on the basis of a random sample of more than 37,000 apartments, 2 the study reveals costs of 11.02 francs per m and even 12.15 francs when including the cost of having a heating system serviced, i.e. around three times as much.
I’m a fan of heat pumps – they are really easy to operate and work very reliably. Dr. Max Egli
We turn to ecology and technology with “energy efficiency” being the key concept.
A basement in Hoval red thanks to a Hoval Thermalia® twin brine/water heat pump.
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Max Egli: The engineer that I commissioned for the apartment buildings judged the COP calculated by Hoval to be too high. However, the analyses carried out up until now have shown that the figure is correct – it surpasses the COP calculated by the engineering firm by 20%. Furthermore, the performance figures of the two heat pumps are below those specified in the Minergie-P standard: the energy consumption 2 is 24 kWh/m , which correlates to 6% below the maximum permissible value.
The two Hoval Thermalia twinÂŽ systems function without coolants, which is much more environmentally friendly. Dr. Max Egli
Bivalent systems are gaining in popularity remarkably quickly. Can you imagine a system with two heat generators or two energy sources? Max Egli: Definitely. I am going to combine the two heat pumps with photovoltaics. The respective cables have already been installed. At the moment, the power rating of such systems is adequate but is not yet in line with my ideas. This is likely to change over the next few years.
Monthly Rikon electricity consumption in kWh
In operation: Betrieb: Österreich. Austria.
Hoval stays on course until all hurdles have been overcome The wellness hotel, Panorama Royal, in the Austrian municipality of Bad Häring is a source of energy and power – now in the literal sense too: A Hoval combined heat and power plant generates the electricity required whilst also independently covering the heating requirements.
The situation could not continue as it was: with every extension made to the wellness hotel, which opened in 2003, the electricity costs increased, and at peak times, they sky-rocketed. As such, the owners decided to approach the problem holistically.
repeatedly challenged all those involved. Christoph Trauner, the hotel’s in-house technician, recalls: “The project required an extremely high level of coordination. Even cooperating with the authorities was demanding, as such systems are not run-of-the-mill”.
Two years passed from the initial idea to the implementation of the extraordinary project. Experts from Hoval Austria monitored the project from the very beginning and lent their support to the building owner and the installer, Michael Fössinger from Kufstein, throughout the planning, decision, authorisation and installation process. The complexity of the entire system
Quiet operation verified
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Nevertheless, the Hoval experts stayed the course and they managed to overcome all of the hurdles together with the customer. They were also able to prove to the public authorities that the Hoval PowerBloc combined heat and power plant
The project required an extremely high degree of coordination. Even cooperating with the authorities was demanding, as such systems are not run-of-the-mill. Christoph Trauner (in-house technician at the wellness hotel Panorama Royal)
The Hoval PowerBloc combined heat and power plant generates electricity and heat and is designed for extremely cost-effective operations with natural gas and biogas.
would operate quietly, meaning that there was no longer anything standing in the way of implementing the project. Custom-made energy production In order to precisely ascertain the actual energy requirements, electricity and gas consumption was measured and analysed over several weeks with the aim of determining what would be the right Hoval PowerBloc module size to use. The target was a run time of more than 7000 operating hours per year. The control unit for the system was designed so that it would take into account both electricity and heat requirements so that energy is only produced in the quantity that is actually consumed. The floating PowerBloc One of the biggest challenges during the implementation process was not disrupting ongoing hotel operations. This was no easy task – after all, the Hoval PowerBloc system,
which weighs more than two tonnes, had to be lifted over the main building by means of a crane due to the constricted space available on-site. Coordination during the installation phase presented another challenge as the existing heating system had to be incorporated into the complete system and all components were optimally coordinated with one another. Overall efficiency level greater than 90% The work was finally complete: The Hoval customer service team commissioned the combined heat and power plant designed for natural gas and biogas. The remarkably low sound level of the Hoval PowerBloc noticeably surprised the system operators – and they are still astounded today by how quietly the system runs. “With regard to visuals, it is also an aesthetically pleasing system in a nice-looking boiler room, which we really enjoy showing during guided tours in order to impress our guests”, says Christoph Trauner. In technical terms, the Hoval PowerBloc in wellness hotel Panorama Royal in Bad Häring impresses with an overall efficiency level greater than 90%.
In operation: Switzerland.
Uniting what nature has to offer with what it needs
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Located on the Säntis, more than 2500 metres above sea level, this new hotel occupies a wonderful position in the first row of the Swiss Alps where it looks down upon the breath-taking scenery. Those who go up via the aerial cableway may choose to stay overnight at this new hotel at the lower terminus on the Schwägalp, which incorporates environmentally friendly technology. From a bedroom, the restaurant, one of the conference rooms or even the wellness area – it doesn’t matter where you are, you can always see the hotels namesake; the Säntis mountain, majestically welcoming visitors all year round. 42 million Swiss francs were put into the construction of the building, which has 3 a total volume of 41,405 m . According to planners employed by Zurich architecture firm, Bünzli & Courvoisier, the building was constructed in just two years. Oil-fired boiler for peak loads Short construction time, sophisticated concept: 30 geothermal probes supply thermal energy from a depth of up to 180 m. A brine/water heat pump with an output of 92 kW increases the thermal energy to heating temperatures of around 50 °C. The heat pump can provide around two-thirds of the heating requirements. For peaks in consumption, Hoval Switzerland supplied the hotel with three oil condensing boilers each with an output of 200 kW. The nearby lower terminus of the aerial cableway is also connected to the heating system.
The circular flow of geothermal energy A percentage of the geothermal energy provided by the Earth is returned: A 200-kW regeneration system, connected to the front of the lower terminus of the aerial cableway, uses the geothermal probes to put geothermal energy from the ventilation system back into the earth on warm days. The waste heat from the additional cooling system and deep-chill system is transferred to the water, thereby reducing the amount of energy required for producing domestic hot water.
This is what sustainability is all about – and can also be seen both in and outside of the hotel in purely aesthetic terms: The materials used and the architectural style make reference to the region, its building tradition and its people and yet create their very own identity at the same time, each sharing characteristics that thoughtfully unite nature and the hospitality industry.
In operation: Romania.
Living with a good ecological conscience
Ecology and luxury can work hand in hand. Cluj-Napoca, Romania’s second-largest city after Bucharest, has an apartment block featuring “green” luxury apartments, now complemented by Hoval red.
The “Riviera Luxury Residence” in ClujNapoca aims to give residents beautiful and tasteful surroundings where they can also live with a good ecological conscience at an affordable cost. Guided by concepts of high energy efficiency and climate protection, the parties involved in initiating the luxury residence project contacted Hoval Romania. The experts at Hoval welcomed the requirements and added a few more: The system that they assembled incorporates state-of-the-art components. ® The system combines a Hoval UltraGas (700D) condensing boiler and a Modulplus F52 water heater with thermal solar panels from Hoval as well, of course: on the roof of the apartment block, a field of 24 Hoval UltraSol panels supply heat. Two energy storage systems each with a volumetric capacity of 2500 l and a hot water tank for 2000 l are used in conjunction with these. Low heating costs Hoval Romania also examined the system very carefully in regards to the cost. The calculations have shown that a three-bedroom residence with an 2 area of around 80 m can be supplied
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with room heating and hot water for less than EUR 250 per year. The first in Transylvania With its solution, Hoval Romania also made a substantial contribution to the “Riviera Luxury Residence” being able to register for BREEAM certification as a “green” building – and in the “excellent” category, no less. The acronym BREEAM stands for “Building Research Establishment Environmental Assessment Methodology”. The assessment system and methods refer to the sustainability of buildings. More than 250,000 buildings worldwide have already been awarded with BREEAM certification. The “Riviera Luxury Residence” is the first “green” residential construction project in the region of Transylvania. Apartments of every size Located in the Gheorgheni quarter, the ten-story building offers apartments with floor areas between 45 and 2 165 m – all with a balcony, terrace or seating area. Along with the 91 apartments, there is a spa, a two-story underground car park and two shopping levels.
To sell the apartments, the parties behind the project wondered whether a well-known brand like Hoval might like to help – a company that stands for energy efficiency, quality and climate protection, all of which can be completely passed onto the “Riviera Luxury Residence” in Gheorgheni.
In operation: Germany.
The central heating system that looks like a chapel “It’s absolutely wonderful that a central heating system can look like a chapel!” This chapel,
featuring lots of Hoval red on the interior, is located in Bad Boll, Germany, and the quote comes from the Baden-Württemberg Chamber of Architects, which honoured the building that houses the “Protestant Academy Bad Boll”. A place that encourages reflection, contemplation and intercommunion as well as a site that uses resources carefully and interacts with nature responsibly – with this sustainable approach, the Protestant Academy Bad Boll heats its rooms and water supply with two Hoval BioLyt (160) wood pellet ® boiler, with a Hoval UltraGas (400) condensing boiler also being used to cover peak loads. The system is connected in cascade. A buffer tank completes the system, which is ® controlled by a TopTronic controller. “We feel like it is our duty to ensure a climate-neutral energy supply and are so pleased that we can heat our water and operate our heating system using regenerative materials”, says managing director, Jörg Hübner. The 2015 sustainability report put together by the Protestant Academy Bad Boll explains that heat production has resulted in a 60% drop in CO2 emissions.
Pellet storage on the first floor So how does a building that looks like a chapel incorporate all of the heating components and, above all, storage space for the wood pellets? There are three boilers in total as well as a buffer tank – all of which are located on the ground 3 floor. On the first floor, there is a 120-m pellet storage area that accommodates around 80 tonnes of pellets. The Protestant Academy Bad Boll – which welcomes and additionally caters for 20,000 daytime and overnight guests every year – consumes approximately 120 tonnes of pellets per year. “A sacred feast for the eyes” The building, designed by architect Nike Fiedler, is 10 metres high, has no windows and features all-round untreated larch-wood shingle. Surrounded by old trees, the structure is located in the park for the academy. The building’s location was another plus point, writes the Baden-Württemberg Chamber of
Architects. In this area, the building makes people curious to go in – it makes people linger. As “a sacred feast for the eyes!”, the Protestant Academy Bad Boll received the “award for exemplary construction” and was shortly thereafter bestowed with a second award: at the Baden-Württemberg 2015 timber construction awards ceremony, the academy was awarded the special “building culture” prize. The jury’s reasoning: “With so much incorporated technology, the structure of the building impresses with its sculptural power and its poetic charisma”.
In operation: Austria.
A mountain village becomes a talking point for ecology Brand, a 700-person village in Vorarlberg, Austria, is making headlines thanks to its new school and multi-purpose building, which is currently the most ecological new public construction in the province. The municipality is also trying to supply all communal buildings and facilities with its own source of electricity and equip these with heat pump systems. This is where Hoval comes in.
ÂŠ Gemeinde Brand
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What are the building blocks of this new construction? Architect, Christian Zottele, says he used “very simple shapes” by positioning six parts of the building in solid timber on a concrete base. The parts are completely disconnected from one another both statically and acoustically; however, as the outer unit, they form the new “heart” of the municipality of Brand. Rooms for children, music and choirs More than 20 children now attend the primary school and almost as many attend the nursery. The building also hosts a playgroup as well as school cafeteria. Furthermore, a music school operates on the premises and lots of choirs use the facilities as a rehearsal space. The inhabitants of Brand have given their very own name to the modern building – which shares links with the traditional building methods of the valley at the same time: “Zemmako” – a term in their dialect that correlates to the German verb “zusammenkommen”, which roughly translates as “coming together”. This building is three times quieter than conventional buildings With its simple shaping and its sophisticated acoustic technology, the building is intrinsically quiet, which is essential in children’s’ learning environments.
The quietness is also due to the construction materials used; they are all untreated and are therefore also completely recyclable. The “Zemmako” building in Brand is therefore the most ecological new public construction in Vorarlberg at present: it achieves 976 Ecopoints out of a maximum of 1000. The municipality of Brand is serious about ecology. The local authority has commissioned its own hydropower station in order to generate electricity and pursues its vision of supplying all public buildings and facilities, such as street lighting, with its own source of electricity. Everything points to a heat pump The answer was therefore obvious – rather than supplying the building with heat via a biomass heating system, for example, the local authority opted to use a compact and space-saving electrically-powered heat pump. Nine probes, which each reach a depth of 100 m, supply the energy for heat generation. ® Brand opted for the Hoval Thermalia twin (42) heat pump. “Its performance data not only looks good in the catalogue, but is also actually achieved”, says mayor (and heating engineer) Michael Domig. As he can monitor the system ® online via TopTronic , he did not give any consideration to failure protection. He also has confidence in the 24-hour service provided by Hoval.
New building saves money Brand could also have renovated the two separate buildings that were there before: the primary school and nursery. The primary school, built in 1951, consumed 4000 litres of heating oil per year and the electric heating system of the nursery, constructed in 1979, resulted in annual costs of more than EUR 10,000 per year. Compared to renovation works, the new building – which also offers more space for other purposes too – was just 10% more expensive. In return, the operating costs are now lower: ® with its Hoval Thermalia twin (42) heat pump, the passive house requires a heat output 2 of just 13 kWh/(m EBFa), as confirmed by the municipality building logbook. Annual heating expenses amount to just EUR 1500.
Monitoring made easy with the Hoval Thermalia® twin (42) heat pump and the Internet-enabled Hoval TopTronic ® E controller.
In operation: United Kingdom.
Lots of hot water fit for a bride
No snow but white fields: as winter ends, millions of snowdrops begin to bloom on the English country estate of Hodsock Priory, a stunning wedding venue. Owner, George Buchanan, wants to make sure that there is always lots of hot water for every bride.
In spring, bell flowers follow the snowdrops. Covering an area of 324 hectares, Hodsock Priory is a site of flowering magnificence in the middle of England. As a representative of the ninth generation of owners, George Buchanan lives here together with his wife Katherine and their four children. Together, George and Katherine Buchanan have turned the grand country estate into a venue for fairy-tale weddings and have received a number of awards for this. “When we modernised the historic Hodsock Priory building and restored its luxury, the most important decision concerned the heating”, says George Buchanan. “A bride wants a bridal suite
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that is both cosy and romantic – as well as endless amounts of hot water any time of the day and night. ® Thanks to our four Hoval Multijet oil condensing boilers, we always have enough hot water”. Furthermore, the rooms are always invitingly warm – even if people taking part in other events are using them, as it’s not just weddings that take place here. As you go through the gatehouse of the Hodsock Priory estate, you are transported into another world.
A bride wants a bridal suite that is both cosy and romantic â€“ as well as endless amounts of hot water any time of the day and night. George Buchanan (General Manager of Hodsock Priory)
In operation: Austria.
Consistent temperatures in hightech manufacturing processes For the premises where exclusive interiors for business aircraft and private jets, yachts and
villas are produced, the climate always has to be just right. F/LIST from Lower Austria relies on RoofVent ®.
Pure luxury: The interior of a private aeroplane. More than 1000 jets already fly with furniture and systems from F/LIST.
The application and production processes employed by F/LIST are defined to the very last detail and require the temperature and air humidity in the production halls to be controlled around the clock.
Pure technology: Detailed view of the Air-Injector vortex air distributor in the Hoval RoofVent ®.
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The small carpentry company founded by Franz List senior in 1950 has grown to become a high-tech manufacturing business that operates around the world. Nowadays, around 690 employees work at the headquarters of the family business in the town of Thomasberg in Lower Austria as well as at the two other sites: Sao Jose dos Campos in Brazil and Montreal in Canada. Over the years, they have built up an unparalleled level of expertise in coating and surface technology in order to produce first-class interiors for aeroplanes, yachts and villas. They are continuously developing new materials and procedures whilst basing their trend-setting innovations on their traditions of quality and reliability.
RoofVent indoor-climate devices for each hall. These devices also control the temperature in the halls and are equipped with heating/cooling coils. They make ecological cooling possible as water from the nearby Pitten river can be used for this purpose. ®
Anyone who has the opportunity to go up in a business or private aeroplane would be well advised to take a look around to see the craftsmanship and first-class production ® skills of F/LIST – and to think about Hoval and RoofVent in the process.
The application and production processes employed by F/LIST are defined to the very last detail and require the temperature and air humidity in the production halls to be controlled around the clock. Consistency is a basis for quality. To guarantee this, the temperature in the production halls must never exceed 30°C. The highly modern adhesives and coatings, which are used for exclusive business jet interiors for example, would not be able to withstand higher temperatures during processing. F/LIST therefore regulates the air circulation and the supply of fresh air in the five production halls using four Hoval
In the F/LIST production hall, the Hoval RoofVent ® makes sure that the temperature never exceeds 30 °C.
In detail: The Hoval UltraGas® condensing boiler
The Gas Condensing boiler that’s always a step ahead Energy efficiency and the lowest possible CO2 emissions are at the top of everyones priority list, with the global climate objectives being of high importance. Next to the sun, wind, geothermal energy and biomass, is gas still justified? Hoval thinks that it is – the reasons for which can clearly be seen in the highly developed condensing technology of Hoval UltraGas ® and the AluFer ® heat exchanger. 11 Hoval UltraGas ® boilers supply hot water to the tallest building in the world – the Burj Khalifa in Dubai, and in the National Gallery in London, two boilers form part of one heating solution. Office buildings, industrial buildings, apartment buildings and single-family homes around the world benefit from Hoval ® UltraGas gas condensing boilers. With its condensing technology and its ® patented aluFer heat exchanger, the ® Hoval UltraGas boiler has set the benchmark around the world and is even managing to sustain its position on the market in the age of renewable energies. Sophisticated heat exchanger Compared to a modern low-temperature ® boiler, the Hoval UltraGas consumes 10 to 20% less gas. Its high efficiency ® is primarily due to the aluFer heat exchanger which cools the hot water vapour and exhaust gases that form during the combustion process in an efficient and effective way, gaining additional thermal energy which is then used to heat the water. The special design of the heat exchanger –
an aluminium interior and stainless-steel exterior – enables a technologically unique peak performance: Fins increase the surface exposed to exhaust gases fivefold so that more vapour can condense. Freely adjustable modulation between 20 and 100% further reduces gas consumption as the performance level can be precisely adjusted to the respective heat requirements. Another advantage is the incredibly low level of hydraulic resistance: The pump has to work less and can therefore be smaller in design, which firstly reduces investment costs and then energy costs. Good environmental performance High energy efficiency and low gas and electricity consumption translate into low energy costs and initial costs quickly being amortized as a result. Its environmental performance is also impressive: Over a period of 12 years, ® a Hoval UltraGas twin boiler system with an output of 2000 kW on average will emit around 1000 tonnes less CO2 than a conventional boiler.
Maximum efficiency guaranteed Planners and installers are also familiar with the large volume of water than can be held as well as the vertical design of the heat exchanger. Water can be optimally layered within the boiler with the hot water at the top and the cold water at the bottom, meaning that the base of the boiler stays cool. This creates the ideal conditions for condensation and always guarantees the maximum degree of efficiency possible. ® The Hoval UltraGas condensing boiler is also equipped with two return flows: the high-temperature return flow at the top and the low-temperature return flow at the bottom. This enables return water to flow in at the respective optimal point, which in turn increases the condensation rate. The efficiency level of the system increases by an additional 6–8% and energy consumption and costs decrease once again.
Outputs from 15 kW to 2300 kW The performance spectrum of the Hoval ® UltraGas product family ranges from a single boiler with an output of 15 kW through to a twin boiler system with an output of 2300 kW. For applications that require even more power, up to eight boilers can be connected in cascade. A premix burner, developed by Hoval itself, ensures a clean and efficient combustion process. As an undoubtedly unique manufacturer, Hoval also installs a premix burner in every boiler in the higher performance classes with an output of up to 1000 kW.
The patented aluFer ® heat exchanger cools hot water vapour.
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Example: cost-effectiveness | customer: food manufacturer Old system
Hot water boiler:
® Hoval UltraGas gas condensing boiler 1150 kW
Annual use efficiency:
Annual use efficiency:
Natural gas H
Investment costs (boiler and installation):
Annual operating cost savings with UltraGas : 27.000 € ®
26% / approx. 4 years
Cost savings over 20 years:
CO2 savings over 20 years:
1640 t (82 t/a)
Any combination is possible ® Integrated as standard, the newly developed Hoval TopTronic E system ® controller now enables up to eight Hoval UltraGas boilers to be joined in cascade. Investors can also integrate a solar collector so that users can produce ® hot water and maintain the heat output with renewable energy. Hoval UltraGas can also be part of the heating system of a heating network or combined with a combined heat and power plant.
It is also possible to install a bivalent system in conjunction with a wood pellet boiler. Hoval is one of the very few companies that also offer both technologies in higher performance classes. The Hoval BioLyt wood pellet boiler is suitable for a constant load, ® while the Hoval UltraGas gas condensing boiler is ideal for a peak load. If desired, the system can therefore be largely operated using renewable energy sources over the course of a year.
Control technology that “thinks for itself” ® Every Hoval UltraGas gas condensing boiler is equipped with ® the new TopTronic E system controller. The controller is easy to operate and seamlessly joins all system components to form a reliable and efficient complete system. Via corresponding interface modules – GLT 0-10V, ModBus TCP, ModBus RS 485 and KNX are available – the boiler can also be integrated into the superordinate building control system. It can also be connected to a heating network by means of the ® Hoval TopTronic supervisor control and communication system. ® The new Hoval TopTronic E control technology not only links all components, but also uses the Internet to take into account external factors such as weather development and global solar radiation. In a nutshell, the technology “thinks” for itself and looks ahead. If the condensing boiler is combined with a solar collector, for example, the new control technology prioritises the solar collector on the basis of the predicted level of global solar radiation, which in turn reduces gas consumption.
In detail: Intelligent direct use of solar energy.
When solar heat goes What if a heating technology specialist at Hoval has a broader perspective. He combines existing components in a new way and creates an exclusive Hoval solar system solution in the process that will likely set a benchmark for single-family homes. Using solar heat directly for heating purposes costs approximately 30% less â€“ and directly results in a higher energy efficiency class.
Nowadays, lots of home owners have solar panels on their roofs that heat drinking water for use in the bathroom and kitchen. But what happens to the surplus solar heat? What if the surplus heat was used to heat the heating water in the condensing boiler? The experienced Hoval specialist thinks ahead: Following this logic, the oil or gas condensing boiler would only start up if the sun did not provide enough heat, resulting in reduced oil or gas consumption. With the large volume of water that the Hoval condensing boiler can hold, the boiler directly serves as a buffer. The heating water no longer has to make a circuitous route over the energy buffer tank to become warm. The clever use of thermal energy finally results in a smaller panel surface area being required for the same output.
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directly into the condensing boiler UltraGas ®, UltraOil ® and MultiJet ® are up to the job
Another plus on the combined energy label
Hoval turned the idea into a system that uses solar energy for heating as well. However, the solution requires a condensing boiler that can hold a large volume of water and features six connections so that the water forms “layers” according to the temperature – hot water at the top and cold water at the bottom. ® ® ® The UltraGas , UltraOil and MultiJet Hoval condensing boilers are the only systems on the market that fulfil these conditions.
This is especially likely to interest owners of single-family homes who are mindful of both costs and the environment: The combined energy label gets one more plus sign. Compared to a standard solar solution combined with a condensing boiler, this solution climbs one energy efficiency class higher: from A+ to A++.
And save another 1000 kWh
Even so, there is even more energy efficiency within the system ® itself as the Hoval TopTronic E system controller favours solar energy. It controls the heating system in accordance with the weather – a task for which it obtains weather reports from the Internet. If the sun is shining during the day, the heating system does not need to run at full power in the morning. ® The TopTronic E controller retrieves up-to-date weather information every three hours, meaning that rooms are never ® excessively heated. Thanks to the TopTronic E system, it is possible to make an oil or gas saving of around 10%.
The results achieved by this solution may even surprise the most skilled planners and the most experienced installers: The smaller drinking water tank and particularly the panel surface area – which has been reduced by a quarter – on the roof decrease the work and costs associated with installation. Compared to a previous solar energy system, the investment costs are approximately 30% lower. Fuel consumption and thereby regular operating costs diminish – by around 30% as well. Thanks to the smaller tank, the amount of energy lost during downtimes decreases – 1000 kWh can be saved.
Cleverly managed – even more efficiency
Hoval joins components to create a system – so that customers can save energy in an environmentally and cost-conscious way, without having to give up comfort. The solar system solution that uses solar heat directly for heating proves it.
Summer (approx. three months)
Transition period (approx. six months)
Winter (approx. three months)
1. T he solar heat streams into the drinking
1. T he solar heat streams into the drinking
1. T he solar heat streams into the drinking
water tank. It supplies the house with hot
water tank. It supplies the house with hot
water tank. It supplies the house with hot drinking water.
2. T he surplus solar heat directly brings the
2. T he surplus solar heat directly brings the
heating water in the condensing boiler to
heating water in the condensing boiler to
temperature. 3. The condensing boiler only heats up in order to heat drinking water and heating water if there is an insufficient amount of solar heat.
In detail: TransShare - Distributing geothermal energy made easy.
Hoval TransShare: save time with individually manufactured heating distributors Highly complex heating distributors – for industrial operations, residential developments and hotels, and district heating networks, for example – present a challenge to every installer. Hoval reduces the complexity and the often prevailing time pressure with individually manufactured distributors, which are now also available in an output range from 150 kW. Firstly, the planner: Together with the investor, the planner determines the energy sources, defines the output spectrum and temperature ranges and draws the flow diagram. Then the installer: The installer has to work very hard carrying out welding operations in order to connect the pipes and set up the desired heat distributor…. but it doesn’t have to be this way. The installer can leave this to Hoval. “We have recently started to manufacture heat distributors for higher performance ranges from 150 kW too”, says Urs Westreicher who heads the district heating/combined heat and power plant product management division at Hoval.
Save time and resources
Each distributor is an individual item
In other words, this means that installers save valuable time that they can use to do other work; they no longer need to arrange for temporary additional resources for welding large-scale systems and do not have to call in an electrician and a specialist for the insulation during this phase. Urs Westreicher: “We are undertaking all work together with our partner company YADOS”. (Read more about the collaboration with YADOS on page 8.)
Hoval and Yados manufacture TransShare heat distributors in exact accordance with individual planning requirements. Every system is a completely individual item. Pumps and valves as well as shut-off devices and thermostats are also precisely coordinated. The installer just has to lay pipes to connect the heat generator(s) to the distributor. Once the pre-wired heat distributor is positioned, the electrician is briefly involved in the process. Depending on requirements, the length of the power cable already corresponds to the distance from the heat distributor to the switch cabinet. Costs and work involved reduced by a third The TransShare heat distributor is supplied with or without insulation and with or without electrical wiring in accordance with customer requirements and is mounted on a support frame in such a way that no vibrations occur. The costs and effort involved for the installer are likely to decrease by up to a third. Specifically for condensing technology Urs Westreicher describes the solution as “well-engineered and superior in terms of energy”. In addition, he specifically points out that TransShare can be aligned with the condensing technology ® ® of Hoval UltraGas and UltraOil . “We design the distributors so that the
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NSSH A R T
E R A
Taking a look in Vaduz
high-temperature and low-temperature return flows can be optimally used for ® ® the UltraGas or UltraOil boilers, which means that the energy efficiency of the Hoval condensing boiler, which is already high in any case, can be increased once more”. Ready for any combination The example also shows that a complete system, in which all of the components interact with one another without any problems, definitely results in a higher performance level and lower operating costs. Hoval is ready for any system conceivable. Regardless of whether an ® UltraGas gas condensing boiler is combined with a combined heat and ® power plant or an UltraOil oil condensing boiler is combined with a solar collector: The tailor-made heat distributor, which gives the installer a time advantage and enables energy and costs savings for the investor, is supplied ready to use.
Since autumn 2016, interested investors, planners and installers have been able to examine three different TransShare heat distributors at close range and in full detail at the Hoval headquarters in Vaduz. They are combined with two ® Hoval UltraGas gas condensing boilers and demonstrate how individual components join together to create an energy-efficient complete system.
In detail. The new HomeVent ® – the ideal solution for your home.
The new HomeVent comfort ventilation system fits anywhere and forms part of a complete system ®
Hoval thoroughly scrutinises its products so that they can become even better, our latest example is the Hoval HomeVent ® comfort ventilation system. Now even more compact, the system can be placed anywhere – even outside in a weather-proof area. Just like the heating system, the ventilation system can now also be controlled via the Hoval TopTronic ® E controller. Even the weight makes a difference: Compared to the previous FRS (180) ® model, the new HomeVent FR (201) system is around 13 kg lighter and features smaller dimensions. However – it actually achieves more. Patrik Woerz, who leads the “living space ventilation” business segment at Hoval, refers to this as “the quadrature of the circle”. The FR (201) model is suitable for apartments while the two larger models, FR (251) and FR (301), have been designed for single-family homes. The system can even be placed on a balcony The compact design opens up new options in terms of planning and installation, which is facilitated by the ® fact that the Hoval HomeVent system can be installed vertically as well as horizontally, and even diagonally if required. Unheated rooms also have
no effect on the new generation. Even in a weather-proof corner of a balcony, for example, the system continues to operate and continuously and reliably supplies fresh air to the rooms inside. In any case, the systems can withstand temperatures as low as -16°C. In a nutshell, It is always possible to find somewhere for the new comfort ventilation system from Hoval – be it in an old building that is being renovated or a completely new building. Consistently fresh air along with warmth and humidity ® Hoval HomeVent not only recovers heat, but also humidity, thanks to a humidity measuring probe.
Thanks to an enthalpy recovery unit, mucous membranes in the nose and throat do not dry out during the winter and do not become a breeding ground
A complete system – ® thanks to the TopTronic E system controller.
® Hoval HomeVent comfort ventilation system
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E.g. Hoval Belaria ® Compact IR heat pump
for bacteria and viruses. The recovery unit also means that no condensate forms, which in turn means that a drain is not required. A de-icing system and thereby an energyguzzling electric pre-heater are also superfluous. Unpleasant odours disappear immediately The new Hoval comfort ventilation system is ahead of all the other systems on the market: depending on requirements, the system features a sensor that measures the quality of the indoor air in real time. If the sensor detects transient but strongsmelling organic compounds, such as those that form during cooking, for ® example, HomeVent increases the air volume – and the unpleasant odours are gone. Centrally control ventilation, heating and hot water ® The new HomeVent generation of products can be controlled with the ® intelligent TopTronic E system controller; this combines the water heating, ventilation and heating system to form ® one complete system. The TopTronic E controls operation in accordance with the weather – a task for which it obtains weather reports from the Internet. It is thereby possible to save energy in an environmentally conscious and costconscious way without having to relinquish comfort.
The Hoval paper in 1976 What might appear nostalgic from 1976 very clearly shows the early point at which Hoval understood its ecological responsibility. An excerpt from the report at the time reads: “The conferences of last May concerned with presenting the new Hoval energy and environmental programmes have not only attracted lots of interest in Liechtenstein, but in Switzerland, Austria and the Federal Republic of Germany too. Well over 1000 people, government and press representatives, specialists and another group dealing with the issue of energy supply and environmental protection gathered at the Hoval factory on the 6th, 14th and 15th of May. To this day, around 100 newspapers and specialist journals have reported on the new energy generation and recovery systems. Thanks to the comprehensive and well-developed programme, Hoval is now considered as an expert that provides tried-and-tested solutions for overcoming current environmental problems”.
IMPRINT “Insights” - the Hoval Group magazine Appears biannually at varying times. Responsible: Marketing PUBLISHER: Hoval Aktiengesellschaft Austrasse 70 9490 Vaduz, Liechtenstein EDITING: Peter Gerner, Ursula Trunz (text), Ernst Carli (design), Veronika Dialler (coordination) PRINTING: EBERL PRINT GmbH, Immenstadt i. Allgäu, Germany Printed on environmentally friendly paper. Online version available at hoval.com
Responsibility for energy and the environment – this has always been the approach adopted at Hoval.
4215423 _ Insights 2017 | No. 1
Austrasse 70 9490 Vaduz, Liechtenstein www.hoval.com
Published on Jul 7, 2017