Power system support services

Support services are a collective term for functions that are provided to support and stabilize the power system and they are needed, among other things, to reliably transfer electricity from producers to consumers. As the proportion of weather-dependent production increases in the system, the need for support services also grows - among other things to compensate for the large frequency changes that occur in production.

A good understanding of how great the need for support services is in the report's various system scenarios, and what costs this entails, is important to be able to ensure that Sweden has as reliable and cost-effective an electricity system as possible. Assessing the future need for support services for different types of systems, on the other hand, is complex and fraught with very large uncertainties. The results of the study give a well-founded indication of the order of magnitude of the additional costs incurred for support services in technology-neutral and fully renewable systems.