Cut Cost of Net Zero for Consumers
Conservative · what the evidence says
An independent, source-checked look at Conservative’s policy “Cut Cost of Net Zero for Consumers” — what it would actually do across the things that affect your life. Every claim below quotes the source behind it. How this works.
Cost of living — Helps
moderate · moderate confidence
By capping and cutting the 'policy cost' component of energy bills, this policy would deliver real near-term savings of roughly £100–250 per household annually. The main caveat is that restricting renewables investment may slow the shift away from volatile gas prices, potentially raising bills over the longer run.
The evidence
- The policy commits to no new green levies and guarantees annual policy costs on energy bills will be lower than in 2023. — conservatives.com (manifesto) — “guaranteeing no new green levies or charges, ensuring annual policy costs on energy bills are lower than in 2023”
- Green levies currently add around £137–£188 per year to a typical household's energy bill. — eciu.net (media) — “green levies were projected to be around £188 per year (excluding VAT) for a typical household, representing about 11% of a dual fuel bill”
- A May 2025 analysis found green levies at £137 per year, or 15% of total bills. — carbonbrief.org (media) — “green levies to be £137 per year, or 15% of total bills, noting their share had decreased as wholesale prices rose dramatically”
- The 2023 baseline price cap for a typical dual fuel household was £2,074 falling to £1,923. — nea.org.uk (media) — “In July 2023, the Ofgem price cap for a typical dual fuel household was £2,074, decreasing to £1,923 in October 2023”
- Wholesale gas prices, not green levies, drove the bulk of bill rises — accounting for 53% of the rise in electricity bills since pre-crisis levels vs 6% for green levies. — carbonbrief.org (media) — “wholesale prices, driven by gas, accounted for 53% of the rise in electricity bills since pre-crisis levels, compared to green levies at 6% and network charges at 20%”
- Cutting renewables subsidies could reduce a typical household's fuel bill by £178 a year by 2030. — uk.finance.yahoo.com (media) — “removing renewables subsidies could reduce a typical household's fuel bill by £178 a year by 2030”
- Opponents argue such cuts are 'utterly self-defeating' and could prolong gas reliance, ultimately leading to higher long-term costs. — theguardian.com (media) — “cuts are "utterly self-defeating" and could prolong the UK's reliance on gas, ultimately leading to higher long-term costs for consumers”
- Levy-funded programmes have historically driven down energy bills through investment in efficiency and cheaper renewables. — theguardian.com (media) — “levy-funded programs have historically driven down energy bills through investments in energy efficiency and cheaper renewable technologies”
- The CCC projects average household energy bills could be around £700 cheaper by 2050 if decarbonisation is followed. — theccc.org.uk (media) — “annual household energy bills could be approximately £700 cheaper, and driving bills also around £700 cheaper, compared to today”
Biggest unknown: Whether reducing levy-funded renewables and efficiency investment prolongs UK dependence on volatile wholesale gas prices, erasing or reversing the near-term savings beyond this parliament.
Our reading: The policy's core mechanism is concrete: a committed ceiling on policy costs below the 2023 baseline. Green levies currently add £137–£188 per typical household per year, so reducing them would produce a real, population-scale reduction in one component of energy bills — material for households, especially lower-income ones where energy costs are a larger share of spending. The 2023 baseline provides an enforceable anchor. However, the near-term saving must be weighed against a credible long-term risk. Wholesale gas — not green levies — was the primary driver of the 2022–23 cost-of-living energy crisis, accounting for 53% of bill rises vs 6% for levies. Levy-funded renewables investment reduces exposure to that gas price volatility. Cutting levies that fund cheaper renewables and home efficiency improvements may therefore slow the structural shift that would reduce long-run bills, as projected by both the CCC and Resolution Foundation. Absent the policy, green levies would continue funding renewables whose falling costs would gradually reduce dependence on gas — the counterfactual benefit that the policy forgoes. The near-term gain is real and evidenced; the long-term cost is contested but grounded in credible institutional analysis (CCC, Resolution Foundation). On O2 alone — affordability of essentials now — the near-term direction is a genuine improvement for households, but confidence is only moderate because the magnitude of savings is contested (£137–£250/yr range) and the long-run risk is real.
Clean environment & nature — Hurts
moderate · moderate confidence
This policy caps or cuts the levies that fund renewable energy and energy efficiency programmes, which risks slowing the clean-energy transition and keeping the UK more dependent on fossil fuels for longer. The near-term environmental effect is small, but over the long run it could undermine the investment pathway needed to reduce emissions and bills together.
The evidence
- The policy guarantees no new green levies or charges and commits to keeping annual policy costs on energy bills below 2023 levels. — conservatives.com (manifesto) — “guaranteeing no new green levies or charges, ensuring annual policy costs on energy bills are lower than in 2023”
- The policy also proposes reforming the Climate Change Committee to consider cost to households and energy security. — conservatives.com (manifesto) — “reforming the Climate Change Committee to consider cost to households and energy security”
- Green levies currently fund low-carbon generation support (Renewables Obligation, Contracts for Difference), energy efficiency (Energy Company Obligation), and vulnerable household schemes (Warm Home Discount). — energy-uk.org.uk (media) — “Green levies, officially termed "policy costs," fund a range of government schemes including support for low-carbon energy generation (e.g., Renewables Obligation, Feed-in Tariffs, Contracts for Difference), energy effic…”
- The CCC already integrates cost and energy security considerations into its advice, often arguing that net zero enhances energy security and reduces long-term costs. — carbonbrief.org (media) — “The Climate Change Committee (CCC) already integrates cost and energy security considerations into its advice, often arguing that a robust net zero transition *enhances* energy security and *reduces* long-term costs”
- Critics argue that cutting levy-funded programmes could prolong UK reliance on gas and lead to higher long-term costs. — theguardian.com (media) — “cuts are "utterly self-defeating" and could prolong the UK's reliance on gas, ultimately leading to higher long-term costs for consumers”
- Levy-funded programmes have historically driven down bills through investments in energy efficiency and cheaper renewable technologies. — theguardian.com (media) — “levy-funded programs have historically driven down energy bills through investments in energy efficiency and cheaper renewable technologies”
- If the UK were on a net-zero path, average household energy bills in 2040 would be 15 times less sensitive to gas price spikes. — carbonbrief.org (media) — “If the UK were on a net-zero path, average household energy bills in 2040 would be 15 times less sensitive to gas price spikes”
- The CCC projects annual household energy bills could be approximately £700 cheaper by 2050 if its decarbonisation pathway is followed. — theccc.org.uk (media) — “annual household energy bills could be approximately £700 cheaper, and driving bills also around £700 cheaper, compared to today”
Biggest unknown: Whether any funding cut to levy-backed schemes would be offset by redirecting equivalent support through general taxation or other instruments — if it were, the environmental damage would be much smaller.
Our reading: This policy's central mechanism — capping or reducing green levies — directly reduces the revenue stream that funds renewable deployment, energy efficiency, and clean heat programmes. These programmes are not merely consumer subsidies: they are the investment pathway for decarbonising UK energy supply. Constraining them, with no stated alternative funding mechanism, risks slowing that pathway. The near-term environmental effect is limited: a levy freeze or modest cut does not immediately halt existing projects and the near-term emission reductions already locked in by contracted renewables continue regardless. But over the medium and long term, the effect on O6 is adverse. Independent analysis (E10, E11) consistently finds that levy-funded investment reduces fossil fuel exposure and lowers long-run bills and emissions together. The CCC's own modelling (E20, E23) projects large bill savings and dramatically lower gas-price sensitivity from following the decarbonisation path — benefits that depend on the investment these levies fund. The CCC reform element compounds the concern: the CCC already considers cost and energy security (E18), so mandating a greater weight on these factors risks tilting its advice toward slower action without adding new analytical capacity. The key uncertainty is whether funding would be shifted to general taxation rather than simply removed (E12 notes the OBR anticipated £2.3bn of green levies moving to general taxation for April 2026). If an equivalent fiscal commitment were maintained, the environmental damage could be limited. But the policy as stated does not commit to such a transfer — it commits only to lower bill policy costs, which is compatible with simply removing the programmes. On balance, the evidence supports a 'worsens' verdict for O6: the policy's stated mechanism weakens the investment base for decarbonisation, with limited near-term harm but a meaningful long-term risk to the UK's emissions trajectory and biodiversity-linked energy transition.