Established in 2000 as Britain’s first independent power exchange, former APX Power UK (prior to this named UKPX) offered an anonymous market place for integrated trading, clearing and notification for spot and prompt power contracts and a trading platform for cleared forwards contracts in the UK. Since the integration of the businesses of the APX Group and EPEX SPOT, APX Power UK operates under the EPEX SPOT brand name, remaining the cornerstone of the UK spot market and is used by members on a 24/7 basis for the majority of their within day balancing requirements.


The EPEX SPOT UK Power Auction is a Day-Ahead auction, where trading takes place on one day for the delivery of electricity the next day. Market members submit their orders electronically, after which supply and demand are compared and the market price is calculated for each hour of the following day.

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UK Half Hour Day-Ahead 15:30 Auction

UK Half Hour Day-Ahead 15:30 Auction offers Members an opportunity to trade half hour contracts in a local Day-Ahead auction. This auction provides Members with the opportunity to balance their physical portfolios and optimise their generation portfolio to the half hour delivery period at the day-ahead stage.

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Spot Market

The spot market is used for balancing and trading purposes and consists of half hourly products of electricity as well as discrete standardised blocks made up of the individual half hours.

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Prompt Market

EPEX SPOT Power UK’s base and peak load day products, weekend products and combination blocks are listed on EuroLight for trading clearing and notification by EPEX SPOT Power UK.

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Third Party Notification and View Only Services

Under the New Electricity Trading Arrangements (NETA), all trading parties have to report contracted positions to the Energy Contract Volume Aggregation Agent (ECVAA). All products traded on EPEX SPOT (formerly APX Power UK) will be automatically notified by EPEX SPOT before gate closure. For over-the-counter (OTC transactions), notification is achieved by parties reporting positions through […]

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