Elexon

• Elexon New System WarningTriggers when the electricity control room publishes a system warning, such as an electricity margin notice or a demand control alert, optionally only of one kind
• Elexon New REMIT MessageTriggers when a market participant publishes a REMIT message, such as a power station outage, or a revision of one, optionally only for one participant, fuel or asset, or only planned or unplanned outages

• Get the current generation mixSee what is generating Great Britain's electricity right now: each fuel's output in MW and its share, over the last five minutes, half hour and 24 hours, including imports through each interconnector. Use it for a live dashboard or to post when wind beats gas.
• Get generation by fuel typeGet generation by fuel type for a range of settlement dates, half-hourly (up to 7 days) or every five minutes (one day), with each fuel's average and peak. Narrow it to the fuels you care about, such as wind and nuclear.
• Get interconnector flowsGet the half-hourly flow on each interconnector between Great Britain and France, Belgium, the Netherlands, Norway, Denmark and Ireland: positive is an import, negative an export, with each link's average and net direction.
• Get wind and solar generationGet actual or estimated solar, onshore wind and offshore wind output for each half hour of a time range, including the embedded solar and wind that the fuel-type figures leave out.
• Get the wind and solar forecastGet the forecast of solar, onshore wind and offshore wind output for each half hour, day ahead or intraday. Leave the times empty for the next 24 hours.
• Get the wind generation forecastGet National Grid's latest forecast of metered wind generation for the next day and a half, hour by hour, with its peak. It is updated up to eight times a day.
• Get demand outturnGet national and transmission system demand for each half hour of up to 28 settlement dates, as metered, with the peak and the average.
• Get daily peak demandGet each day's peak transmission demand and the half hour it came in, for up to a year. Use it to watch for the winter peaks that set Triad charges.
• Get the day-ahead demand forecastGet National Grid's latest half-hourly forecast of national and transmission demand for the rest of today and tomorrow, with the forecast peak.
• Get the 14-day demand forecastGet the forecast peak national and transmission demand for each of the next two weeks, from National Grid's latest forecast.
• Get system pricesGet the imbalance (system) buy and sell price and the net imbalance volume for every half hour of a settlement date, with the day's average, highest and lowest.
• Get market index pricesGet the wholesale market index price and traded volume for each half hour from EPEX Spot and Nord Pool, with the volume-weighted average over the range.
• Get system frequencyGet the grid's frequency every 15 seconds for up to 24 hours, with its lowest, highest and average. It sits near 50 Hz; a dip below 49.8 Hz means generation was lost.
• Get temperatureGet Great Britain's daily average temperature, as National Grid measures it for demand forecasting, against the normal for the time of year, for up to a year.
• List system warningsList the warnings the electricity control room published, such as electricity margin notices, demand control alerts, IT outages and SO-SO trades, with their full text.
• Search REMIT messagesFind REMIT messages, the outage and capacity notices generators publish under EU market rules, by when they were published, participant, asset, fuel and whether the outage was planned. Each comes back in full, newest first.
• Get a REMIT messageRead one REMIT message in full by its id: the unit, how much capacity is unavailable, when, why, and whether the event is still active.
• List BM unitsList the Balancing Mechanism units Elexon registers (power stations, wind farms, batteries, interconnector users), narrowed by fuel, company or name, with each one's ids and capacity.
• Get physical notificationsGet what a BM unit told the control room it would generate or consume (its physical notification) and its export and import limits, for a time range of up to 7 days.
• Get bid-offer dataGet the prices a BM unit bid to reduce its output and offered to increase it, pair by pair, for each half hour of a time range of up to 7 days.

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