EASE has prepared a short summary on one of the following energy storage application groups - Services to Support Distribution Infrastructure.
November 2021 / Reports and Studies
Ancillary Services
The Task Force on Segmentation of Applications has developed The Ancillary Services Report, among other application descriptions. This work builds on the Summary of Energy Storage Applications published in June 2020.
This overview provides a summary of different energy storage applications that support the efficient operation of the power grid. Ancillary Services are generally tendered by transmission and distribution system operators to ensure reliable power supply. These services can be provided by a variety of technologies as well as the already commonly tendered ones on the market, and provided by storage operators.
Services to Distribution Infrastructure are composed of nine key systems:
Frequency Containment Reserve (FCR): primary frequency - maintains a balance between generation and consumption within the Synchronous Area. Aims to maintain the operational reliability of the power system of the Synchronous Area and stabilises the system frequency at a stationary value.
Automatic Frequency Restoration Reserve (aFRR): Secondary frequency - adjusts the active power production of the generating units to restore the frequency and the interchanges with other systems to their target values following an imbalance, and brings the frequency back to its target value.
Manual Frequency Restoration Reserve (mFRR): Tertiary frequency - restores primary and secondary frequency control reserves, manages congestion in the transmission network, and brings frequency and interchanges back to their target value.
Replacement Reserve (RR): restoring or supporting the required level of frequency restoration reserve (FRR) and system imbalances, including generation reserves through active power reserves
Load Following: serves as load following capacity that adjusts its output to balance the generation and the load within a specific region or area.
Frequency Stability of Weak Grids: maintaining the frequency stability by helping avoid load shedding in islands due to the feasible very prompt response of distributed energy storage systems (DESS).
Black Start: contributes to the process of recovering a power station to operation without relying on an external power network.
Voltage Support: maintains voltage by injecting or absorbing reactive power by means of synchronous or static compensation. Different kinds of voltage control are implemented by individual TSOs, based on their own policies: primary, secondary and tertiary voltage.
New Ancillary Services: delivers a reactive current response for voltage dips in excess and supplies the reactive current with a specific rise time.
EASE has responded to the European Commission's Public Consultation on 'Renewable Energy Projects - Permit-Granting Processes & Power Purchase Agreements . This initiative aims to facilitate renewable energy production projects. It will focus on the key barriers to implementing renewable energy projects and outline good practices addressing the identified barriers and good practices to facilitate power-purchase agreements, including across borders.
EASE has responded to the European Commission's Public Consultation on the proposal for ‘Hydrogen and Decarbonised Gas markets’ Package. This Package, consisting of a review of the Gas Regulation and of the Gas Directive, aims to decarbonise gas consumption, and puts forward policy measures required for supporting the creation of optimum and dedicated infrastructure, as well as efficient markets.
The revisions of the Energy Performance and Buildings Directive and the Energy Efficiency Directive are vital to achieving a zero-emission and fully decarbonised building stock and a carbon-neutral energy system by 2050. EASE welcomes these revisions as an opportunity to speed up decarbonisation efforts through the efficient and optimised use of energy. However, stronger integration of energy storage solutions is required.
EASE has prepared a position paper on the Renewable Energy Directive Revision (REDIII) highlighting the great opportunity this review offers in terms of speeding up decarbonisation efforts in the energy system. EASE believes energy storage can be fostered through RED III in multiple ways.
