Mid-term market
June 2026
NESO is launching this early Requirements Consultation, seeking market feedback regarding the possibility to procure near‑term reactive power capability to address voltage needs in the South West of England in Summer 2026.
May 2026
NESO continue to prepare market documents for market launch later this year. This includes amends and refinements following consultation feedback received earlier this year (see the 2026 Pre-Market Consultation tab for more details). NESO now anticipate market launch will be later in Q2 2026. NESO will provide further communications at the time of market launch in line with the previously communicated next steps.
March 2026
Following the Pre-Market Consultation held earlier this year, NESO have published an update on the outcome of this consultation process and the next steps prior to launching this market. See the 2026 Pre-Market Consultation tab for more details.
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, 5 June 2026 is launching a consultation, seeking market feedback regarding the possibility to procure near‑term reactive power capability to address voltage needs in the South West of England in Summer 2026, prior to the launch of the Mid-term Reactive Power market. Further information including how to respond is included in the Consultation Letter.
The deadline for providing feedback is 26 June 2026. Feedback should be submitted using the Consultation proforma to NESO by email: [email protected].
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, 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.