An overview of how the SEMOpx electricity markets operate and the timelines they work on.
View the full range of static and dynamic reports available to download.
See dynamic report tables and graphs for latest auctions, which can be viewed online or downloaded.
Market related documentation and Trading & Technical documentation.
SEMOpx is governed by a set of rules and operating procedures that set out the obligations on Exchange Members and process for trading on the exchange.
Latest approved SEMOpx Rules, Procedures and any approved Modifications.
Modifications to the SEMOpx Rules.
Find registration information for a company to participate in the Day-Ahead and Intraday Market.
To trade on SEMOpx Day-Ahead and Intraday Markets you need to complete the application process
Competitive, simple fee structure to participate and trade on the exchange.
Information on all aspects of Single Electricity Market.
13/02/2021
zip 30.4 MB
Updated to 28th Feb 2021 UK Participant files temporarily excluded from weekly upload
02/02/2021
pdf 267.6 kB
15/01/2021
zip 31.6 MB
Updated to 31st Jan 2021 UK Participant files temporarily excluded from weekly upload
13/01/2021
pdf 283.6 kB
18/12/2020
zip 33.5 MB
Updated to 31st Dec 2020
zip 1.4 MB
Updated to 31 Dec 2020
04/12/2020
pdf 267.1 kB
24/11/2020
pdf 1.1 MB
21/11/2020
zip 1.6 MB
Updated to 30 Nov 2020
zip 34.0 MB