Talent, not turbines, will have the biggest impact on the climate - Chris Hocknell
Britain continues to pour substantial sums into renewable infrastructure to squeeze the final marginal emissions from an already heavily decarbonised electricity grid. Chancellor Rachel Reeves' Autumn Budget of November 26, 2025, shifting green levies to general taxation to deliver an average £150 annual reduction in household energy bills from April 2026, amounts to a cautious admission: renewables will not lower consumer costs without considerable fiscal assistance.
Ofgem's approval of £28bn in initial grid upgrades, potentially rising to £90bn by 2031, merely underlines the point. These investments are projected to add £108 to annual network charges by 2031, even allowing for some offsets from reduced system constraints.
Renewable generation itself is inexpensive. Re-engineering a grid designed for dispatchable nuclear and gas to accommodate variable, weather-dependent sources, however, demands costly balancing and reinforcement. Britain must play its part in tackling climate change, but burdening households with the expense of these diminishing domestic returns is not the way to do it.
The UK's remaining competitive asset is its universities and talent, with an unrivalled record in generating world-changing intellectual property. Oxford researchers developed the AstraZeneca vaccine that protected millions during the pandemic. Oxford PV's perovskite-on-silicon tandem technology enables solar panels to produce up to 25 per cent more electricity than conventional silicon equivalents.
These successes expose a recurring pattern: brilliance in invention, followed by scaling and monetisation elsewhere. AstraZeneca has paused major UK investments, redirecting billions to the United States. Oxford PV chose Germany for commercial manufacturing, benefiting from superior facilities and policy support.
Climate change will not be solved by turbines alone. Enormous technology gaps remain in materials, heavy industry, aviation fuels, and battery storage. These gaps should be filled by British innovators. Breakthroughs originating here would displace far more global emissions than extracting the last increments from our domestic power sector. In essence, the priority should shift from merely reducing domestic emissions to displacing them on a global scale through exported innovation.
To achieve this, the investment landscape must be rebuilt. UK climate-tech companies face some of the highest industrial electricity prices in Europe while competing against US firms supercharged by Inflation Reduction Act subsidies. Germany, having spent even more aggressively on renewables than the UK, now provides substantial energy cost relief to its industrial base to prevent deindustrialisation and retain competitive edge.
Targeted relief for British innovators developing electrolysers, advanced materials, next-generation HVAC (Heating, Ventilation, and Air Conditioning), and industrial AI would deliver dramatically higher carbon return on investment than additional grid levies. Hardware climate-tech scale-up is strangled by glacial permitting and testing regimes, compounded by over-taxation and inadequate access to patient capital. A start-up can reach commercial deployment in two years in Denmark or Singapore; the same journey in Britain remains protracted and uncertain, deterring investment and talent retention. It is no coincidence that genuine UK climate-tech unicorns are so rare.
The much-vaunted green jobs and green growth will not come primarily from fitting imported solar panels and heat pumps. They will come from developing and then exporting intellectual property and technologies.
Chris Hocknell is the founder of sustainability consultancy Eight Versa.