Renewables Obligation Certificate (ROC) issue schedule 2026 to 2027
Summary
Ofgem published its administrative schedule for issuing Renewables Obligation Certificates (ROCs) for the period April 2026 to March 2027. Generators must submit monthly output data by the end of the second month following generation, with ROCs issued roughly three weeks later. The schedule maintains existing deadlines with no changes to ROC allocation or pricing mechanisms.
Why it matters
This is routine administration of an existing scheme closing to new entrants in 2017. The ROC mechanism is being wound down as the CfD scheme takes over renewable support, making this primarily a legacy management exercise.
Key facts
- •Data submission deadline: end of second month following generation
- •ROC issuance: approximately 21 days after data submission deadline
- •Micro-generators (≤50kW): annual submission by 31 May 2027
- •Late submissions suspended and require justification
Timeline
Areas affected
Related programmes
Memo
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If data for Renewables Obligation Certificates (ROCs) is submitted to Ofgem after the date shown in Column A it will be suspended and Ofgem will look to generators to provide reasons as to why the data was submitted late. In these cases, it is unlikely that ROCs will be issued by the date shown in column B. ### Micro-generating stations Operators of micro-generating stations with a declared net capacity of 50 kW or less (or their agents) that have notified Ofgem that they want ROCs to be issued on an annual basis, must provide data for output and input electricity for the period 1 April 2026 to 31 March 2027 by 31 May 2027 at the latest. Our [generator guidance](https://www.ofgem.gov.uk/publications/renewables-obligation-guidance-generators) and [agent guidance](https://www.ofgem.gov.uk/publications/renewables-obligation-guidance-agents-may-2013) provides more information on this. For individual micro-generating stations in Northern Ireland we provide detailed instructions in the register user guide. In the majority of cases, data should be submitted via the register. ### Contact us In the event of a problem with the register, email us at renewable.outputdata@ofgem.gov.uk. If you need to speak to a member of the Renewables team directly, please call our helpline on 020 7901 7310. ## Main document [Renewables Obligation Certificate ROC issue schedule 2026 to 2027 [PDF, 107.20KB]](/sites/default/files/2026-03/renewables_obligation_certificate_roc_issue%20schedule_2026_to_2027_20260313153425.pdf) Get emails about this page [Print this page](/guidance/renewables-obligation-certificate-roc-issue-schedule-2026-2027) ### Share the page * [Share on Facebook](http://www.facebook.com/share.php?u=https://www.ofgem.gov.uk/guidance/renewables-obligation-certificate-roc-issue-schedule-2026-2027) * [Share on Twitter](https://twitter.com/intent/tweet?text=Renewables%20Obligation%20Certificate%20%28ROC%29%20issue%20schedule%202026%20to%202027&url=https://www.ofgem.gov.uk/guidance/renewables-obligation-certificate-roc-issue-schedule-2026-2027) * [Share on LinkedIn](https://www.linkedin.com/shareArticle?mini=true&url=https://www.ofgem.gov.uk/guidance/renewables-obligation-certificate-roc-issue-schedule-2026-2027) Close Notify me Would you like to be kept up to date with *Renewables Obligation Certificate (ROC) issue schedule 2026 to 2027*? subscribe to notifications: Email [](/ "Home") ### Subscribe to receive our latest news and communications [Subscribe now](https://email.ofgem.gov.uk/p/1QCB-1GX5/subscribe) ## Contact us * [Contact us](/about-us/get-in-touch/contact-us) * [Publications](/publications) * [Schemes register](/log-your-scheme-register) * [Electronic public register](https://epr.ofgem.gov.uk/) ## Other * [Cookies](/cookies) * [Ofgem privacy policy](/ofgem-privacy-policy) * [Website accessibility](/website-accessibility) * [© Ofgem 2026](/c-ofgem-2026) Follow us * [X](https://x.com/ofgem) * [LinkedIn](https://www.linkedin.com/company/ofgem) * [Facebook](https://www.facebook.com/ofgem) Close