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The RO buy-out price for a certificate is annually adjusted for inflation using the retail prices index. This draft order changes the inflation indexation metric from the retail prices index to the consumer prices index by April 2026. The CPI is widely recognised as providing a more accurate reflection of real world price changes than the RPI and, as noble Lords will be aware, it typically tracks at a lower rate than the RPI. In practical terms, this means that the costs of operating the scheme will grow more slowly in future years, which we expect will ease pressure on electricity consumers. This change forms part of our broader work to drive efficiencies across the energy system, reduce costs for businesses and help to alleviate pressure on domestic energy bills.