PolicyLens

Conservative - Energy

Cut net-zero subsidies by GBP 1.6bn

Remove selected green subsidies, using the party’s GBP 1.6bn claimed annual saving as the high case.

Last updated: May 2026.

Read the policy-specific methodology note

Subsidy target

The live policy page claims GBP 1.6bn of green-subsidy savings. The proposal does not list the exact schemes, so the central case assumes only about half is cleanly removable by 2028-29.

  • Specific schemes are not identified.
  • Savings may reduce investment incentives.
  • Contracts may limit near-term savings.

Core trade-offs

Cancelling subsidies lowers public spending if contracts allow it. It can also delay private investment in insulation, clean power, EVs or industrial decarbonisation, raising emissions and future compliance costs.

  • Taxpayers gain from lower subsidy outlays.
  • Investors lose policy certainty.
  • Future decarbonisation costs may rise.

Fiscal impact by 2028-29

-GBP 1.6bn to +GBP 1.0bn. Central estimate: -GBP 0.8bn.

  • Positive numbers mean net fiscal cost; negative numbers mean Exchequer savings.
  • Main saving is cancelled subsidy spending.
  • Contracts and future replacement support reduce savings.
  • The pledge lacks a scheme list.
  • This is not an official costing.

Economic impact by 2028-29

  • Jobs: Green-sector jobs may fall; fossil or conventional sectors may gain modestly.
  • Wages: Limited aggregate effect; exposed installers and suppliers face pressure.
  • Prices: Bills may fall only if levies are removed and suppliers pass through savings.
  • GDP / productivity: Likely negative for clean-investment productivity if policy uncertainty rises.

Assessment

A saving is plausible if specific grant or subsidy budgets are cancelled. But without a scheme list, the estimate is highly uncertain and may understate contract penalties, lost private investment and future carbon-compliance costs.

Confidence: Low. The headline saving is a party claim; scheme-level budgets and contracts are not specified.

Main risks

  • Investment uncertainty: Abrupt subsidy cuts can deter private capital beyond the direct public saving.
  • Contract exposure: Existing contracts may limit cancellation or create compensation costs.
  • Future cost: Delayed decarbonisation can increase later emissions-compliance costs.

Safeguards

  • List schemes and legal commitments.
  • Separate grants from long-term contracts.
  • Score lost private investment and emissions effects.

Academic evidence

Goulder and Parry, Review of Environmental Economics and Policy, 2008

Environmental policy design

Instrument choice matters: taxes, permits and standards differ in efficiency and distributional effects.

Relevant to carbon pricing, CBAM and ZEV mandate choices.

Instrument Choice in Environmental Policy (2008)

Dechezlepretre and Sato, Review of Environmental Economics and Policy, 2017

Regulation and competitiveness

Environmental regulation can impose costs but competitiveness effects are often smaller than claimed.

Relevant to deregulation claims around net zero and ESG.

The Impacts of Environmental Regulations on Competitiveness (2017)

UK government evidence

Office for Budget Responsibility, 2024

OBR October 2024 forecast

The OBR scores fuel-duty, EPL and environmental-receipts measures and discusses oil-and-gas uncertainty.

Anchors energy and motoring estimates.

Economic and fiscal outlook: October 2024 (2024)

Office for Budget Responsibility, 2026

OBR fiscal forecast

The OBR forecast sets the macro, borrowing and receipts baseline used for broad fiscal context.

Prevents treating tax cuts or spending changes as self-financing.

Economic and fiscal outlook: March 2026 (2026)

Sources

Other Conservative policies

PolicyLens estimates are illustrative and should not be treated as official costings.