Ancillary Services
Ancillary services are essential components of power systems that ensure the stability, reliability, and quality of electricity supply. These services support the transmission of electricity from generators to consumers while maintaining the balance between supply and demand. In European markets, ancillary services play a critical role in maintaining grid stability, especially as the integration of renewable energy sources increases.
Key Markets for Ancillary Services
European electricity markets are structured to include various ancillary services, which are typically procured through competitive markets or bilateral agreements. These services include frequency containment reserves (FCR), frequency restoration reserves (FRR), and replacement reserves (RR). Each of these services addresses specific needs, such as frequency regulation, voltage control, and black start capabilities.
For instance, FCR ensures that the grid frequency remains stable by automatically adjusting power output within seconds. FRR, on the other hand, restores the frequency to its nominal value within minutes, while RR provides additional reserves to handle prolonged imbalances. These markets are coordinated at both national and European levels, with organizations like ENTSO-E (European Network of Transmission System Operators for Electricity) playing a key role in harmonizing practices across countries.
Regelleistung: A Platform for Ancillary Services
Regelleistung is a platform used in several European countries, including Germany, to procure ancillary services. It facilitates the transparent and efficient procurement of reserves, allowing market participants to offer their services and compete for contracts. The platform supports the integration of renewable energy by enabling flexible and decentralized resources, such as battery storage and demand-side management, to participate in ancillary service markets.
In conclusion, ancillary services are vital for the smooth operation of European electricity markets. They ensure that the grid remains stable and reliable, even as the energy landscape evolves with the increasing adoption of renewable energy sources.