MARINE RENEWABLES
NEW POWER PACK CONVERTS WASTE HEAT TO ELECTRICITY Alfa Laval has unveiled a new power pack capable of converting waste heat directly into electrical power
Photo: Alfa Laval
The E-PowerPack reduces fuel consumption and CO2 emissions, helping owners and operates meet marine industry decarbonisation targets. “Alfa Laval is pursuing a wide range of technologies to support decarbonisation, both independently and with partners,” said Lars Skytte Jørgensen, vice president technology development, energy systems, Alfa Laval Marine Division. “Fuel cells and many other innovations are in the pipeline, but the first critical step is to leverage the existing energy on board.” Launching on 5 April via webinar, the E-PowerPack is a self-contained solution that can generate electricity from many different heat sources on board. These include exhaust gas waste heat, which accounts for 50% of the energy from combusted fuel, but also liquid sources at lower temperatures, such as engine jacket water. Regardless of which fuels are used, fleets can use the E-PowerPack to reduce their fuel consumption, emissions and costs. On vessels where moving to low-sulphur fuel has created a surplus of steam, the E-PowerPack will transform the excess into a free source of power. The E-PowerPack will also be vital as energy recovery becomes key in transitioning to green methanol and ammonia. “Savings that offset fuel costs are only one part of the picture, since methanol and ammonia are both more expensive and less energy-rich,” said Danny Ingemann, head of sales. “For the amount of fuel they carry to be feasible, vessels will need to utilise all of the energy that methanol and ammonia contain. The E-PowerPack will be a vital part of achieving the energy balance.” 8 Alfa Laval’s E-PowerPack converts waste heat directly into electrical power
Heerema Marine Contractors have been awarded a contract for the transport and installation of the Dogger Bank C offshore substation off the northeast coast of England. The massive offshore wind farm will see the substation for phase 3 delivered by Heerema. Owners SSE Renewables, Equinor and Eni made the award as part of the third and final phase of the Dogger Bank project, which means total energy generating capacity will be 3.6GW combined with Dogger Bank A and B. This should be enough to supply 5% of the UK’s electricity demand, the owners say, powering six million homes.
22 | APRIL 2022
Credit: Aibel
Contract awarded for world’s biggest wind farm
8 Artistic illustration of windmills at Dogger Bank
For the 3,500-tonne jacket foundation, four main piles and 9,500-tonne offshore substation topside, Heerema will perform offshore lifting to position the jacket foundation on the scour bed, using main
piles to provide on-bottom stability. The offshore substation will be lifted from a barge prior to the set-down on the jacket foundation. ”Inatalling sizeable offshore substations is core business for us and we are looking forward to working together on the preparation and installation of Dogger Bank C,” SAID Heerema’s wind director, Jeroen van Oosten. Dogger Bank C is around 560 km2 in area, and almost 200km from shore. SSE will lead the development and construction, and Equinor will operate the farm on completion for its predicted life of around 35 years.
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