Cutululis, N.

Gubina, A.

Holttinen, Hannele

Keane, A.

Kiviluoma, Juha

Van Julle, F.

Ancillary services are grid support services required by the power systems (transmission or distribution system operators TSOs or DSOs) to maintain integrity, stability and power quality or the power system (transmission or distribution system). Ancillary services can be provided by connected generators, controllable loads and/or network devices. Some services are set as requirements in Grid Codes and some services are procured as needed by TSOs and DSOs to keep the frequency and voltage of the power system within operational limits or to recover the system in case of disturbance or failure. It is foreseeable that also variable renewable generators, like wind and solar, will provide ancillary services. This is needed from power system point of view in times of high wind and solar production when conventional generators are at low level. In this report, different ancillary services are described and a table listing main services is presented

VTT Research System

Ancillary services: technical specifications, system needs and costs:REserviceS Deliverable D2.2

In this report, different ancillary services are described and a table listing main services is presented. While Chapter 2 is describing the services from (renewable) generators point of view, Chapter 3 is considering future system needs for services with increased wind and solar penetration. The table will be used as a starting point in the REServiceS project to see how much these services would cost when provided from wind/PV (WP3/4), and how often these services would be used in systems with higher penetrations of wind and solar (WP5/6)

Cutululis, Nicolaos Antonio

Gubina, Andrej

Keane, Andrew

Van Hulle, Frans

Online Research Database In Technology