Not a green argument. An economic one.
The numbers work today. Not in five years when the technology matures. Not after the next subsidy round. Today, at commercial rates, without government support.
A household that installs solar, a battery, and switches to a heat pump is cash-flow positive from month one at current electricity prices. The gas price crisis made that calculation — and nobody told you.
The fastest way to stop money leaving your community is to stop burning something imported to heat a building you own. Every pound spent on gas is a pound that doesn't circulate locally. Every unit of solar is a pound that does.
The problem is not that green technology is expensive. The problem is that the financing system was designed before it got cheap — and nobody updated the system.
European batteries cost 56% more than equivalent batteries manufactured in Asia. That is not a technology problem. It is a scale problem. And scale problems are solved by procurement, not by waiting.
The €800 billion spent stabilising European energy markets in 2022–23 went largely to energy companies, gas suppliers, and financial intermediaries. Almost none of it went to building the manufacturing base that would prevent the next crisis.
Coordinated public procurement at European scale — the same mechanism used for vaccines, for defence, for agriculture — closes the battery price gap within three years. The decision is political, not technical.
Europe has spent a fortune on the crisis. It has spent almost nothing on making itself less vulnerable to the next one. That is a choice, not a constraint.
Denmark understood this forty years ago. The community wind cooperatives that were built in the 1980s — often on marginal agricultural land, owned by the farmers and villagers who lived nearby — still generate returns that stay in the communities that built them.
The economic multiplier of locally-owned energy is two to three times higher than grid energy purchased from a distant supplier. The money circulates. It pays local wages, local suppliers, local maintenance. It doesn't leave on a wire to a shareholder in another country.
The transition to clean energy is an opportunity to redesign who owns the infrastructure. That decision is made once. It is very hard to reverse. Communities that own their energy supply are not vulnerable to the next gas crisis. Communities that buy their energy from a distant corporation are.
The question is not whether the energy transition happens. It is happening. The question is who owns it when it does.
Not 90 years.
Every action. Every owner. Every deadline. No new institutions. No legislation required for the first wave.
Sources: ACEA, European Heat Pump Association, Aurora Energy Research, 2024–25
Decisions that cost nothing. Announcements that shift behaviour before they take effect.
Financing instruments that already exist, deployed at scale.
Regulatory decisions that cost nothing. Classification changes that move billions.
| Policy Action | Annual Cost | Type |
|---|---|---|
| Municipality campaigns | ~£50m | Expenditure |
| Remove electricity levies | £4.5bn | Tax shift — not new spending |
| Green mortgage state guarantee | ~£260m | Guarantee — drawn on defaults only |
| EV finance rate guarantee | ~£100m | Guarantee — drawn on defaults only |
| Battery infrastructure classification | £0 | Regulatory decision |
| Iberian pricing reform | £0 | Market rule change |
| Housing association solar lending | ~£300m | Sovereign loan — repaid from savings |
| Total annual cost — full programme | ~£6bn/yr |
UK energy crisis — one winter: £150 billion.
EU total crisis spending 2022–23: €800 billion.
Years of this programme for the cost of one crisis: 25 years.
The subsidy lasted a winter. The debt lasts a decade.
Eleven blogs. One case. All the evidence.