Strategic link: Energy is industrial policy. Grid capacity is the single largest constraint on UK manufacturing, construction, and housing. This briefing is not separable from the reindustrialisation agenda.
The UK has a dysfunctional energy market for four reasons that compound.
1. Gas-linked electricity pricing. Under current market rules, wholesale electricity prices are set by the marginal generator, which is almost always gas. Even when 70% of our electricity comes from renewables or nuclear, the price is set by the remaining gas. This means British consumers and industries pay gas prices for renewable electricity. This is the single biggest policy scandal in the UK energy system and no party has addressed it properly.
2. Grid infrastructure bottleneck. Connection queues for renewable generation extend to the 2030s. New industrial facilities cannot get grid connections within project timelines. Housing developments stall waiting for substation upgrades. The grid was built for a centralised coal/gas system and has not been upgraded for distributed renewables or growing demand.
3. Nuclear programme drift. The UK pioneered civil nuclear, lost the capability, and now depends on French, Korean, and Chinese vendors for new build. Sizewell C is delayed. Hinkley Point C is over budget and late. The SMR programme (Rolls-Royce SMR) is underfunded relative to its strategic importance.
4. Supply-side dysfunction. Retail energy suppliers collapsed in waves during the 2022 crisis, dumping costs on consumers via the Supplier of Last Resort mechanism. The price cap partially works but is structurally regressive. Standing charges have risen faster than unit prices, penalising low-usage households.
Position: National Grid Electricity Transmission and National Grid Gas Transmission brought into public ownership.
Cost: Acquisition estimated £15–25bn depending on methodology. Not counted as "spending" in the IFS/OBR framework: it is a capital transaction, financed via gilt issuance, with offsetting asset on the balance sheet.
Revenue impact: Transmission revenues currently flow to National Grid shareholders (~£1.5bn/year dividends). Post-nationalisation these flow to the Exchequer or are reinvested. Conservative estimate: +£1bn/year available for reinvestment or revenue.
This is not old-style nationalisation. This is recognising that grid transmission is infrastructure, not a market. Same logic as roads, rail track (post-Railtrack), and the military.
Position: Existing DNOs (UK Power Networks, Northern Powergrid, Western Power Distribution, SP Energy Networks, SSEN, Electricity North West) maintained in current ownership but subject to regulatory reform to require massively increased investment.
Rationale: Full nationalisation of DNOs would be administratively complex and deliver limited additional benefit. Regulatory reform via Ofgem delivers the required outcome at lower cost and less political risk.
Cost: Marginal, absorbed by DNOs within regulated return framework. Consumer bills may rise marginally (~£20/year) to fund investment.
Position: Generation remains competitive. Anyone with enough solar panels can connect. Anyone who can build wind, nuclear, battery storage, hydrogen, tidal: market open.
Position: Retail supply remains competitive, but subject to enhanced monitoring and market power provisions.
The position is trust-but-verify. Suppliers remain in private hands, but if they start extracting unjustified margins, we will hit them hard and visibly. The threat of the mechanism, plus its automatic nature, disciplines behaviour without requiring ongoing political intervention.
Position: Full-throated nuclear commitment. Both large-scale and SMR.
Industrial policy linkage: The SMR programme is the single largest piece of our reindustrialisation agenda. Rolls-Royce Derby is exactly the productive-capital, skilled-workforce employer we are trying to support. The SMR supply chain (fabrication, pressure vessels, turbines) maps onto the same industrial capacity as naval propulsion and aerospace: industrial policy adjacent to defence, which is a recurring theme.
This is the most important specific policy in the briefing.
Position: Wholesale electricity market reform to decouple renewable and nuclear electricity prices from marginal gas pricing.
Consumer impact: Significant bill reductions for domestic consumers (potentially 20–30% on the electricity component of bills once fully implemented). Industrial consumers benefit more. British manufacturing pays 50% more for electricity than French or German competitors; this closes the gap.
"British wind should have British prices. British nuclear should have British prices. We are not paying gas prices for wind electricity any longer." This is straightforward, popular, and technically correct. No other party is proposing it because the existing generators benefit from the current system.
Renewable developers will resist publicly but privately recognise it as the sector's long-term sustainability. The current arrangement is politically unstable, and a reformed market that gives consumers the benefit of cheap clean energy creates the political consent for further renewable build-out.
Position: Integrated with housing construction and retrofit programme.
Cost: £2–3bn/year for 10 years on retrofit. Offset partially by reduced energy bills and reduced grid demand. Embedded within housing programme rather than as separate energy spend.
| Item | Y1 | Y3 | Y5 | Y10 |
|---|---|---|---|---|
| National Grid acquisition (capital, gilts) | £15–25bn one-off | — | — | — |
| SMR programme contribution | £0.2bn | £0.4bn | £0.4bn | £0.3bn |
| Large-scale nuclear (contingent RAB) | £0 | £0 | £0 | consumer billed |
| Energy efficiency/retrofit | £1bn | £2bn | £3bn | £3bn |
| NET ANNUAL REVENUE SPEND | £1.2bn | £2.4bn | £3.4bn | £3.3bn |
| National Grid dividends recovered | — | +£1bn | +£1bn | +£1bn |
| Net fiscal impact (revenue) | £1.2bn | £1.4bn | £2.4bn | £2.3bn |
Remaining headroom after NHS: Y5 ~£6bn / Y10 ~£31bn. Energy commitment (revenue): Y5 £2.4bn / Y10 £2.3bn. Remaining headroom after Energy: Y5 ~£3.6bn / Y10 ~£28.7bn.
Y5 is now very tight. Defence, police, and legal aid all still to be fit. This is the crunch point.
The National Grid acquisition (£15–25bn) does not hit the deficit under standard fiscal frameworks: it is an asset purchase financed by gilts, with the asset (and its income stream) offsetting the debt on the public balance sheet. However, OBR and markets will scrutinise the asset valuation. Conservative approach: acquire at independently valued price, fund through dedicated infrastructure gilt issuance, publish regular valuation updates.
The decoupling reform reduces domestic electricity bills by an estimated 20–30% on the electricity component (approximately £200–400/year per household). This is a massive political dividend that does not hit the fiscal framework. It is the single biggest direct consumer benefit in the entire platform, possibly excepting the LST reform.
Nationalisation political risk: Nationalising National Grid will be politically contested. Markets may react to sovereign expropriation signals. Mitigation: acquisition at market value with independent valuation, existing debt respected, operational continuity maintained, explicit statement that this is targeted natural-monopoly nationalisation not ideological programme.
Decoupling implementation complexity: Two-tier market reform is genuinely complex. Ofgem, industry, and consumer groups all have interests. Risk of implementation failure or capture. Mitigation: phased rollout, beginning with industrial customers where benefits are clearest and politically defensible, then extending to domestic.
Nuclear programme deliverability: UK construction industry has weak recent nuclear track record. Hinkley C overruns are known. SMR programme requires sustained political will through multiple parliaments. Risk of delays and cost overruns. Mitigation: RAB model (cost overruns partly absorbed by consumers, not solely Treasury); Rolls-Royce SMR has significantly better risk profile due to factory-built modularity.
Renewable developer pushback: Existing renewable developers benefit from current pricing arrangement and will lobby hard. Political mitigation: the policy is genuinely popular (cheap British electricity for British consumers), and the developers have no credible counter-narrative beyond "we need the windfall profits to finance more renewables", which we address via CfD reform.
Energy is where the productive-capital coalition and the housing/consumer agenda most clearly align. British industry pays 50% more for electricity than French or German competitors. British consumers pay among the highest electricity prices in Europe. Both facts have the same cause: the market is structured to extract rent to generators rather than share the benefit of cheap clean generation with the people paying for it.
The pitch to industry: "We will give you electricity prices that let you compete with French and German manufacturing. We will build the grid capacity your new facility needs. We will deliver nuclear capacity for industrial baseload. We will make Britain the best place in Europe to build things."
The pitch to consumers: "We will cut your electricity bill by £300 a year. We will stop the supply companies scalping you. We will make British wind and British nuclear deliver British prices, not gas prices."
The pitch on nuclear: "We will restore British nuclear capability at Rolls-Royce Derby. British engineers will build British reactors for British power. Hundreds of skilled jobs in Derby, thousands across the supply chain."
These three pitches are mutually reinforcing and ideologically coherent. The same reform delivers cheaper bills for voters, cheaper electricity for industry, and skilled manufacturing jobs in the Midlands. No other party is attempting this combination.