Short term operating reserve (STOR)
At certain times of the day we may need access to sources of extra power to help manage actual demand on the system being greater than forecast or unforeseen generation unavailability.
How providers are paid
There are three types of payment for the STOR service:
This payment is for being available to provide the service within a defined availability window.
This payment is for delivering the service when instructed by us. This includes the energy delivered in ramping up to and down from the contracted volume.
Proof of delivery from metered data, which is taken automatically from the unit or sent to National Grid via Excel.
Providers submit their prices for availability and utilisation during the tender. These prices will inform the economic assessment to determine which parties are accepted.
Optional utilisation payment
Non-BM providers are able to offer STOR outside the defined availability windows. For these optional periods, they can offer optional utilisation prices should we wish to use the service. No availability payments are made for optional periods.
What providers can expect to be paid
Providers submit their own prices for availability and utilisation during the tender. These prices will inform the economic assessment to determine which parties are accepted.