Autumn Budget 2025
Autumn Budget 2025: What It Means for Business Energy
Digestible insights from Advantage Utilities
Autumn Budget 2025: What Rachel Reeves’ Announcements Mean for the UK Energy Sector
Chancellor Rachel Reeves has unveiled her 2025 Autumn Budget, introducing major reforms that aim to cut household energy bills and reshape how the UK taxes energy and transport. While many measures focus oneasing the cost of living for households, several policies carry big implications for the wider energy market.
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Transport and Energy-System Measures
New mileage-based tax on EVs:
From April 2028:
Battery-electric cars: new “pay per mile” tax of ~3p per mile
Plug-in hybrids: ~1.5p per mile
The goal is to ensure all drivers contribute to road maintenance, but industry groups warn it creates mixed signals at a time when EV adoption is being encouraged.
Colin Walker, head of transport at the Energy & Climate Intelligence Unit, said the levy sent a mixed message:
“Trying to encourage people to embrace electric vehicles whilst adding a new tax on those vehicles is a recipe for confusion," Walker said.
Tax measures on energy generation
A temporary Electricity Generator Levy will apply to certain generators to help fund bill support and public services.
The Energy Profits Levy on fossil-fuel companies remains high, with potential implications for investment decisions.
Long-term support for clean energy
Funding continues for:Renewables and nuclear
Home-efficiency upgrades
Low-carbon heating through the Warm Homes Plan
However, these initiatives will rely less on supplier obligations like ECO and more on direct government support.
Potential Opportunities For Business Owners
Incentives for on-site generation
Enhanced tax treatment for commercial investments, including solar PV on business premises, may improve ROI for companies installing on-site renewable generation.
Support for energy-intensive sectors
Industries with high electricity demand will continue to receive relief through:
British Industry Supercharger (BIS)
British Industrial Competitiveness Scheme (BICS)
These programs significantly reduce electricity costs for qualifying businesses.
For business properties used in heavy-electricity sectors, there is an energy-cost benefit, though that’s driven by use/sector rather than the building itself.
Oil and gas policy shifts
The government will now allow new oil and gas production on or near existing fields when it does not require new exploration.
At the same time, windfall-style profit taxes will remain, despite industry pressure for early removal. Operators warn this may constrain investment and affect job stability.
Quick Takeaways for Advantage Clients
Most business energy bills will not fall, unlike household bills.
Energy-intensive industries benefit the most from relief schemes.
Competitiveness gaps may widen between firms eligible for BIS/BICS and those outside the schemes.
EV fleet costs will rise gradually from mileage-based taxation.
Meanwhile, wholesale energy markets have softened. After a steady decline since early July, the last week saw a sharper drop driven by stable demand alongside strong wind generation and healthy LNG supply to UK shores.
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