Stadtwerke Kiel

Stadtwerke Kiel

Alpiq builds Europe’s largest and most advanced gas engine heat and power cogeneration plant

In order to replace an old coal-fired power plant, the city of Kiel’s public utility company requires a highly flexible and environmentally friendly power plant. In the role of general contractor, Alpiq’s subsidiary Kraftanlagen München is constructing a gas engine heat and power cogeneration plant using a modular design. The K.I.E.L. Coastal Power Plant project (”Kiel’s intelligent energy solution”) is unique in Europe and sets new standards in terms of flexibility, efficiency and ecological sustainability. With know-how from Alpiq.

From 0 to 190 megawatts in 5 minutes

The location near the Baltic Sea requires extremely flexible technology: Due to the high proportion of wind power in the local grid, power stations of the future must be capable of balancing fluctuations in the grid at very short notice.
The power plant on the Kieler Förde fjord can be fired up from 0 to 190 megawatts in just five minutes. This is possible thanks to 20 gas engines that can be individually controlled. In addition, the power plant generates up to 192 MW of thermal energy for district heating: This heat can either be fed into the city of Kiel’s district heating network or stored in a hot water storage system for later use. This enables the generation of electricity and the feeding of heat into the district heating system to be carried out asynchronously. The flexible power plant can generate and supply energy according to demand.

Stadtwerke Kiel

70 percent reduction of CO2 emissions

The new power plant can not only optimally balance grid fluctuations, but also supply electricity that can be marketed on the balancing energy market. In the event of surplus electricity being available in the grid, the power plant converts this electrical power into heat using a 35 MW electrode boiler, and stores this heat.

In addition to the indirect support of the expansion of renewable energies, the power plant itself reduces the environmental burden and helps the state capital Kiel to achieve its climate targets. Compared to the coal-fired power plant that it is replacing, the new power plant will reduce the CO2 emissions by more than 70 percent.