Heat savings in energy systems with substantial distributed generation

The integration of flutuating wind power is an important issue for the future development of sustainable energy systems. In Denmark, the integration is affected by a large amount of cogeneration of heat and power. This gives possibilities as well as sets restraints. The paper shows that with ancillary services supplied by large-scale condensation and CHP-plants, a certain degree of large-scale generation is required regardless of momentary wind input