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River-Assisted District Cooling The City of Gothenburg, Sweden, built a district cooling system supplemented by free cooling provided by the river Göta älv.

ENVIRONMENTAL The system reduces CO2 emissions by up to 80% compared to conventional air-conditioning.

SOCIAL District cooling provides much higher availability and reliability than the standalone alternatives.

Gothenburg, Sweden, uses free cooling from the river Göta älv to pre-cool water used in its large-scale district cooling system. By using a combination of river water for pre-cooling and waste heat from an incineration plant to drive its absorption chillers, Gothenburg substantially lowered CO2 emissions compared to conventional cooling methods. Customers get the environmental benefit of sustainable cooling at an affordable cost. Why a Sustainia100 solution? Gothenburg’s district cooling system harnesses free, local resources – river water and surplus heat – in order to offer citizens a cost-competitive, energy-efficient alternative to conventional air-conditioning. District cooling in Gothenburg is a sustainable way of providing a solution for a growing cooling market.

ECONOMIC In return for investing in an energy transfer station, customers only pay for the cooling they use.

In Gothenburg, Sweden, river water and surplus heat helps deliver sustainable district cooling.

Developed in Sweden

Deployed in Sweden

Waste heat from waste incineration plant used to chill water

Cool water inflow

Water outlet

Supply temp. 6°C Return temp. 16°C

Solution by Capital Cooling 141

2013 Sustainia100  
2013 Sustainia100  

Sustainia100 is an annual guide to 100 innovative solutions from around the world that presents readily available projects, initiatives and...