Trigeneration (CHCP)

District heating systems produce more than enough thermal energy during summer, if the energy source is cogeneration of heat and power. This waste heat can be used for cooling of private and public buildings. Possible overheating in buildings can be prevented in this way. This adaptation brings great advantages in mitigation, because the technique of cooling with district heat is energy efficient and leads to a reduction in CO2 emissions.

Dresden is one of the pilot cities for this system: since 1993 more than 20 technical installations have been built here – mostly in prestigious buildings like the Saxon parliament – with a cooling power of about 13 MW. For the future, it is planned to connect these smaller installations to a complete cooling network in the inner city, so that this cost-efficient technique along with its advantages for adaptation and mitigation will be spread even further.

CHCP Cooling network in Dresden (City of Dresden)