Fixed-price futures: what the UK Budget's clean energy reforms mean for legacy renewable project owners and lenders

The UK chancellor's October 2026 Autumn Budget confirmed that the government intends to press ahead with its plan to encourage legacy clean energy projects to move onto -price contracts. For the owners of and lenders to those assets, the implications are significant, multi-layered and, critically, still not fully defined.

The policy in brief

One of the centrepieces of the government's energy market reforms is a new Wholesale Contract for Difference (WCfD) scheme, a voluntary fixed-price contract to be offered to existing low-carbon generators currently exposed to wholesale market prices, alongside an increase in the Electricity Generator Levy (EGL) from 45% to 55%. The announcement builds on a direction of travel first set out in April 2026 and, in confirming Budget funding for the scheme, the government has made clear that this is not a proposal it intends to abandon.

The scheme is primarily targeted at generators who benefit from the Renewables Obligation (RO), a significant proportion of whose revenue is calculated by reference to wholesale prices, under which gas-fired power stations set the power price most of the time.

A voluntary scheme? 

Although the government has described moving to the WCfD as voluntary, there are consequences for generators who decline to do so: they risk losing part of their revenue to the EGL. Generators who agree to enter into a WCfD will benefit from a fixed price for their power that is unaffected by the EGL, providing them with an incentive to switch.

For owners, that framing matters. The WCfD involves exchanging upside exposure to elevated wholesale prices, which currently sit above £100 per MWh, for a government-fixed strike price that has not yet been disclosed. Until the government provides further details on pricing methodology and the terms of these contracts, generators cannot make an informed decision. 

The government has stated that contracts will only be offered where they represent "clear value for money for consumers", a test that, by definition, may not coincide with value for money for the generator.

Project finance: the lender's perspective

For owners of projects with project finance in place, the financing implications of entering into a WCfD are likely to sit at the heart of any assessment. 

RO Certificate-backed projects are now at least eleven years old, and refinancing is anticipated for many of them over the coming years. A more predictable revenue stream may support greater leverage, create refinancing opportunities, and strengthen debt service cover ratios, all of which will appeal to lenders. The WCfD could facilitate this process with price certainty making revenue forecasting more straightforward. This means that switching to a WCfD could in principle unlock access to lower-cost debt, though much will turn on the specific strike price agreed under the WCfD and the quantum of debt as a proportion of the original loan facilities that is being refinanced.

Nevertheless, project owners face a number of imminent practical issues. Existing financing documentation is likely to state that lender consent is required before a project company can enter into a WCfD, since the switch will in all likelihood result in a material change to the project's revenue arrangements or result in the granting of rights to the Low Carbon Contracts Company. Any lender presented with a consent request of this nature will need to think carefully about its position, not least given the weight of regulatory change that project portfolios have already had to absorb.

Power purchase agreements and hedging

A significant number of RO projects are subject to existing power purchase agreements (PPAs) or hedges and the switch to a WCfD would necessitate the renegotiation or termination of existing arrangements, potentially triggering break costs or creating difficult sequencing issues. 

Where a lender's security package has been structured around a PPA with an investment-grade offtaker, the unwinding of that arrangement demands close scrutiny, even where the replacement is a government-backed contract. Lenders in that position will need to assess carefully what the change means for their credit metrics and the overall value of their security package.

The cumulative regulatory problem

The commercial details of the WCfD will become clear in time and generators will then be in a position to assess the merits of what is being offered. However, even with a favourable strike price the shift to WCfD will constitute yet another intervention in the market, which can undermine the certainty needed by investors. 

This latest change is compounded by the move from retail price to consumer price indexation for RO generators that occurred earlier this year. These interventions risk causing structural problems to projects within which commercial risks, such as alignment between the indexation of a generator's costs and its revenues, are exacerbated by changes to a project's commercial operating model that occur long after the projects they relate to were set up. As is the case with many market interventions, even where each change is individually defensible there is a risk that they collectively make a market unattractive for investors. 

What happens next?

For those generators who decide that moving to a WCfD would be beneficial, this may coincide with a refinancing or other event in connection with which a predictable income stream is valued more highly than exposure to wholesale markets. 

For projects that have project finance or other third-party-lenders there will be a checklist of items to consider when switching to a WCfD: 

• Review positive covenants relating to maintaining "material project documents" or similar in force.
• Review negative covenants prohibiting the termination of "material project documents" or similar.
• Identify cross-default provisions that may treat the termination of "material project documents" as an event of default under loan facility agreements.
• Identify the consent threshold for transition to a WCfD for example, whether a simple majority lender vote is required or a supermajority or all lender unanimity.
• Establish what will be required to document the switch to a WCfD, not forgetting ancillary documents such as deeds of termination of existing agreements and authorisations for entry into replacement agreements as well as amendments to the project's agreed financial model and potentially the borrower's financial covenants and loan tenors. 

Osborne Clake comment

The offtake or power purchase agreement on a project-financed renewable energy project is arguably the project company's most important contract because of the way in which project finance loans are structured by reference to projected cash flow rather than by reference to the value of the project company's assets. As such, it will not be a quick or straightforward process to replace an operating project's PPA, even if the replacement is on superior terms and time should be allowed for engagement with the project's lenders.