Open consultation

Feed-in Tariffs (FiT) scheme: indexation changes

• From: Department for Energy Security and Net Zero
• Published: 31 October 2025

Applies to England, Scotland and Wales

Summary

We're seeking views on proposed changes to inflation indexation for the Feed-in Tariffs (FiT) scheme.

This consultation closes at
5pm on 12 December 2025

Consultation description

The UK government is proposing changing the inflation indexation calculation for the Renewable Obligation (RO) and Feed-in Tariffs (FiT) schemes, from the Retail Price Index (RPI) to the Consumer Price Index (CPI):

• for the Renewable Obligation (RO) scheme, the inflation indexation calculation for the buy-out price would be changed by Ofgem from RPI to CPI
• for the Feed-in Tariffs (FiT) scheme, the annual tariff adjustment calculation would be changed from RPI to CPI

The indexation change would come into effect in April 2026 and would affect all UK generators on the RO and FiT schemes.

Changes to inflation indexation would lower the annual subsidy uplifts for generators and reduce the cost of these schemes for UK consumers.

Respond to the FiT scheme consultation via the link on this page.

Respond separately to the RO scheme consultation

Documents

Changes to inflation indexation in the Feed-In Tariffs (FiT) scheme: consultation document

PDF, 268 KB, 13 pages

Analytical Annex: Impact of indexation options

PDF, 305 KB, 9 pages

Ways to respond

Respond online

or

Email to:

RO@energysecurity.gov.uk

Published 31 October 2025