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The NEMS uses a methodology to achieve the overall least-cost of electricity in every half-hour trading period. Three types of electricity products are traded on the NEMS in real-time: energy, reserve and regulation. EMC uses the market clearing engine (MCE) prices to derive prices for these products. Provisional prices are prices that are subject to change, while final prices are only made available six business days after the trading day. Final prices are used for settlements. For explanations of the terminology please go to the Guide to Prices.
For a snapshot of each day's trading, please view our Trading Reports page.
The following pricing data (final) are available for download.
The data availability is denoted in the bracket, where D is the trading day followed by the number of business days. Data can be downloaded in CSV format for periods covering up to 31 days per file. Price data is available from 1 January 2003 except for Vesting Contract References Prices, since vesting contracts only took effect from 1 Jan 2004. Information on registered facilities is available from 3 Jul 2012.