Mid-term market
January 2026
At the end of 2024, NESO facilitated an industry webinar and a voluntary Request for Information (RFI) in relation to the indicative design for the Mid-term Reactive Power Market. This led to NESO’s recommendation to implement the Mid-term Reactive Power Market.
Throughout 2025, NESO has considered the findings from this exercise and has continued to develop the details of the Mid-term Reactive Power Market, including but not limited to the procurement processes that would be followed and the technical specification requirements.
As of today, 09 January 2026, NESO is launching a further consultation on the Mid-term Reactive Power Market prior to the launch of this market.
NESO is inviting the market to review the most recently published DRAFT documents and provide any feedback by the published deadline. See the 2026 Pre-Market Consultation tab for more details.
April 2025
We have now completed our work with industry, which included a webinar and voluntary Request for Information (RFI) and are recommending implementation of the Mid-term Reactive Power Market.
The Mid-term Reactive Power Market will provide a route to access voltage services from existing assets based on their additional capability over & above the requirements of Grid Code through an open, transparent and competitive market.
As our system studies identify future needs for locational voltage services across Great Britain, we will continue to develop our approach for how best to meet these requirements. Once a requirement for mid-term procurement is identified, further information will be provided to industry.
As of today, 09 January 2026, NESO is launching a further consultation on the Mid-term Reactive Power Market prior to the launch of this market.
NESO is inviting the market to review the DRAFT documents published below and provide any feedback using the Consultation Proforma provided below.
The deadline for providing feedback is 4 February 2026. Feedback should be submitted to NESO by email: [email protected]
Any queries about the DRAFT documents published below should be submitted to [email protected]
The Market Engagement RFI was a voluntary RFI seeking voluntary views, NESO is not exercising its RFI powers under the Energy Act 2023, but NESO still reserves the right to issue RFIs under this Act. This closed on Friday 13 December 2024.
Below you can find the latest material from our workshops and webinars.
Reactive Power Market - November 2024
We hosted an initial webinar on 13 November. The purpose of this was to provide a recap of the Future of Reactive Power Market innovation project, with a specific focus on the mid-term market. This included NESO’s current thinking, next steps and how industry can get involved.