John Healey is preparing to spend more than £1bn in this month's budget to cushion poorer households against a forecast energy price cap increase of up to £442 in January — a spike driven by the Iran war that would entirely erase the benefit of Andy Burnham's earlier VAT cut on electricity bills. The most likely mechanism is a £100 increase to the warm homes discount, currently a £150 rebate for households on certain benefits, funded by general taxation rather than the existing bill-payer levy. The chancellor has effectively overruled energy secretary Miatta Fahnbulleh, who pushed for a far more ambitious £3.2bn plan to strip all levies — which fund renewable energy and efficiency schemes — off bills entirely, reducing costs by up to £120 for all consumers. Healey's rationale is fiscal: he faces a cash crunch from £4.7bn in additional defence spending, an eroded fiscal buffer from higher borrowing costs, and the political impossibility of creating a new permanent spending line that would be difficult to unwind if energy prices fall. The structural tension here is real. Fahnbulleh's proposal would have lowered inflation directly by reducing the headline price, whereas Healey's warm homes top-up is a transfer payment that leaves the price signal intact. The energy secretary's argument — that every other country is asking how to split costs between the exchequer and bill-payers — is the more honest framing of the long-term question. But the chancellor is playing a shorter game: targeted spending that survives Treasury scrutiny. Behind the budget line, the energy department is working on more radical post-budget reforms. A 'social tariff' would force energy companies to charge poorer households less per unit of electricity, requiring extensive data-sharing between HMRC, the Treasury, and energy firms. An alternative 'rising block tariff' — proposed by the New Economics Foundation when Fahnbulleh ran it — would charge less for a set block of 'essential' consumption and more above that threshold, regardless of income. Both would fundamentally restructure how the price cap operates. The politics of the budget are instructive. Government sources describe it as 'low-key but focused on reducing voters' cost of living' — a tacit admission that Labour's fiscal headroom has evaporated and the ambition has been downsized accordingly. Higher bank taxes are rumoured to fund additional spending, but the core posture is defensive: patch the immediate crisis, defer structural reform, and avoid creating fiscal commitments that outlast the emergency. The Joseph Rowntree Foundation's Alfie Stirling identified the three tests any package must pass: support the majority of households, target the most vulnerable, and actually lower the price. Healey's current plan meets only the second criterion. The NEF's Alex Chapman warned that without action, bills will exceed the peak of the last crisis — a politically devastating outcome for a government that promised to fix the energy market. Burnham's own conference pledge — to bring UK energy costs in line with European neighbours within a decade — remains entirely aspirational without the structural reforms Fahnbulleh is pushing. The budget will reveal whether this government treats energy as a recurring crisis to be patched or a broken market to be rebuilt.