The UK Department for Energy Security and Net Zero published its latest Energy Trends Section 6 renewables statistics on June 11, 2026, including refreshed Renewables Obligation Certificates tables. The update is part of the department’s accredited official statistics series tracking the UK’s renewable energy landscape.
UK publishes June 2026 renewables energy statistics
The Department for Energy Security and Net Zero released updated Energy Trends Section 6 renewables statistics on June 11, 2026. This particular update focused on the Renewables Obligation Certificates tables rather than a full quarterly Energy Trends publication.
The release carries accredited official statistics status — a designation indicating the data meets the UK’s Code of Practice for Statistics. That standing gives policymakers, researchers, and energy market participants confidence in its reliability.
The June update follows a previous ROCs table refresh on May 14, 2026. Before that, a full Energy Trends tables publication appeared onMarch 26, 2026 — the most recent comprehensive quarterly release ahead of this update.
What the Renewables Obligation Certificates data covers
ROCs are tradeable certificates issued to accredited renewable electricity generators across the UK. Each certificate represents a unit of eligible renewable electricity fed into the grid, and suppliers use them to demonstrate compliance with their renewable sourcing obligations.
The ROCs tables within Energy Trends Section 6 track both the number of certificates issued and the volume of electricity generated, broken down by renewable technology type. That granularity lets analysts see which technologies — wind, solar, biomass, and others — are contributing most to the UK’s renewable output at any given point.
Section 6 also contains broader renewables data. The ET 6.1 table covers overall renewable electricity capacity and generation statistics. Together, these tables build a layered picture of how the UK’s renewable energy mix has evolved over time.
Regular update schedule maintained since 2013
The ROCs tables follow a roughly monthly update cycle, while full Energy Trends publications — which cover a wider range of energy data — appear quarterly. That two-tier rhythm has held steady for well over a decade.
The series first published in January 2013 and has continued without interruption since, building a dataset now spanning more than thirteen years of renewable generation and certificate data. The April 2, 2026 full quarterly release was the most recent comprehensive publication before the June ROCs update, with the next full Energy Trends publication expected later this month on June 25, 2026.
Regular, predictable data releases support transparency and allow stakeholders to track trends in UK renewable energy policy outcomes. Gaps or delays in official statistics can complicate investment decisions and policy assessments — which makes the unbroken publication record a practical asset in its own right.
Background: the Renewables Obligation scheme
The Renewables Obligation was introduced in 2002 as the UK’s primary mechanism for supporting large-scale renewable electricity generation. Electricity suppliers were required to source a specified proportion of their power from eligible renewable sources each year.
Suppliers who could not meet that requirement through ROCs had the option to pay a buyout price into a fund, which was then redistributed to suppliers who had submitted certificates — creating a direct financial incentive for investment in renewable generation capacity.
The RO closed to new applicants in 2017. Generators already accredited under the scheme, though, continue to receive ROCs for the duration of their individual support periods, which can extend up to 20 years from accreditation. ROC issuance and its associated data will therefore remain relevant for years to come.
Ongoing publication of ROC data allows policymakers and market participants alike to monitor how the legacy scheme is performing. It also provides a window into the broader trajectory of renewable electricity generation in the UK, even as newer support mechanisms like Contracts for Difference have taken on a larger role.
Key insights from the June 2026 update
The June 11, 2026 publication is a ROCs-specific update, not a full quarterly Energy Trends release. It sits within a well-established series of accredited official statistics from the Department for Energy Security and Net Zero.
The ROCs tables track certificates issued and generation by technology type, offering monthly visibility into the performance of the UK’s legacy renewable support scheme. The series has been published consistently since January 2013, with full quarterly Energy Trends tables — the most recent dated April 2, 2026 — complementing those monthly ROC updates.
For anyone monitoring UK renewable energy trends, the Energy Trends Section 6 series remains a primary source of official, regularly updated data on both current generation and the ongoing wind-down of the Renewables Obligation.
