Autumn Budget 2026: affordability must go hand in hand with long-term energy reform

Energy affordability was always going to be one of the central themes of this Autumn Budget. Businesses and households continue to face pressure from high and volatile energy costs, while the UK must also invest in the infrastructure and generation needed to build a more secure, competitive and lower-carbon energy system. 

London, 3 November 2026 – Against that backdrop, the Chancellor’s reaffirmation that the government remains “unshakeably committed to net zero by 2050” was significant, alongside a clear emphasis on making energy more affordable. The important question now is how those two ambitions are delivered together. 

The Budget contains several measures designed to provide more immediate support to bring down energy costs. For businesses, the new British Industrial Competitiveness Scheme is expected to reduce electricity bills by up to 25% for more than 10,000 eligible manufacturing firms at the heart of British industry. This will be welcome news for energy-intensive businesses, although it remains targeted support rather than a broader solution to the cost pressures facing organisations across the economy.  

For businesses outside the scheme, the wider challenge remains. High electricity costs affect competitiveness, investment and the commercial case for electrification. While the decision to freeze the main Climate Change Levy rates may offer some stability, the Budget did not go as far as wider industry calls to remove more policy costs from electricity bills. This leaves an important question around how we tackle the structural cost of electricity and create the conditions for businesses of all sizes to invest, grow and participate in the energy transition. 

Alongside the immediate measures, there were some potentially important longer-term signals for generators and investors. The government has launched a consultation on Wholesale Contracts for Difference, alongside a Cost Control Framework intended to place greater focus on the relationship between clean-energy investment and customer bills. These are complex reforms, but getting the market framework right will be essential to creating the long-term confidence needed to unlock investment in new generation. 

The Energy Wealth Fund could also play a role by directing investment into renewable and low-carbon infrastructure. With so much of the reporting in the lead-up to the Autumn Budget focused on Jackdaw, Rosebank and the future of the North Sea, it was no surprise to hear these issues referenced by the Chancellor. For the energy transition, the important question will be how effectively new investment is directed towards the infrastructure needed for the future, and whether it helps address practical constraints including grid capacity and connections. 

Infrastructure will be central to making all of this work. Investment in generation alone is not enough if projects cannot connect to the grid or businesses cannot access the clean power they need. Creating a more flexible and resilient energy system, with the network infrastructure to support new generation and demand, will be critical to translating the government’s ambition into meaningful progress. 

The new Data Centre Covenant is an interesting example of that balance. The scale of investment flowing into AI and data centre infrastructure creates huge potential, but also significant new demand for electricity. With the right approach, that could become an opportunity for the wider energy transition, not just for the data centre sector. Growing demand helps strengthen the case for investment in clean generation, storage, flexibility and infrastructure, provided it develops in step with the wider energy system rather than adding further pressure to an already constrained network. 

All in all, there was a lot in the Budget to welcome but the finer details are yet to be uncovered. The Chancellor has reinforced the importance of clean energy, recognised the pressure energy costs place on British businesses and set out measures that could help unlock further investment in generation and infrastructure. 

Now comes the important part of turning those commitments into action. That means accelerating viable grid connections, enabling investment in renewable generation and flexibility, progressing electricity market reform and ensuring businesses can genuinely benefit from the transition. 

If we can get that right, we have an opportunity to build an energy system that is not only cleaner, but more resilient, competitive and affordable.