Project
Pelham Storage
Bishop’s Stortford, Hertfordshire
When Pelham Storage became operation in 2017, it was the largest grid scale connected battery in the UK, paving the way for the UK BESS industry.
Strategically located near National Grid’s Pelham substation the project supports the decarbonisation of the UK’s electricity system. By efficiently balancing intermittent renewable generation, it will help the country meet its 2050 net zero target and ensure a more resilient, low-carbon energy supply.
Statera Energy’s battery systems are developed using proprietary control logic, and designed to deliver the most efficient, reliable service that can adapt to the various market conditions to help provide a secure supply of electricity to the end consumer at the lowest cost.
Services
Wholesale power markets
The Wholesale Market is the primary market for wholesale electricity trading between generators and suppliers. Electricity can be traded from years ahead up to one hour ahead of the delivery. Flexible technologies such as batteries and gas reciprocating engines are mainly targeting short-term trading by providing real-time flexibility to help balance the system. Therefore, they trade mainly in day-ahead to intraday markets.
Day-ahead hourly, half-hourly and intraday auctions
Within-day power markets on the intraday exchange
Frequency response
Providers are awarded an availability payment at different contract durations. Fast-responding technologies such as batteries are best suited to provide services in real time.
Dynamic Containment (DC), Dynamic Moderation (DM) and Dynamic Regulation (DR): A new suite of products used by National Grid. It is a fast-acting service (DC for post-fault management and DM&DR for pre-fault) to ensure frequency remains within the statutory range of +/-0.5Hz in the event of sudden demand drop or supply surge on the grid.
Firm Frequency Response (FFR): FFR is a real-time continuous frequency balancing service, managing system frequency deviations on a minute-by-minute basis.
Capacity Market
Two auctions are held yearly to disburse capacity contracts 1 and 4 years ahead of delivery for keeping generation capacity ready for response.
Providers are paid an availability payment for being connected. New build generators can apply for a 15-year contract in the T-4 auction while existing generators or those able to reduce demand can apply for a one-year contract in the T-1 auction. To ensure delivery, there are stringent rules to prequalify and meet the various milestones required to participate in the Capacity Market.
All of Statera’s assets are designed to deliver this reserve service to National Grid.
Balancing Mechanism
This is to respond to events including power station trips, demand surges and intermittent renewable generation. Flexible technologies such as batteries and gas reciprocating engines are well placed to provide real-time flexibility in the BM to help.
