Solar lobby presses Brussels for ruling on Chinese supplier curbs as heatwave strains European grids
Europe's dependence on Chinese solar components has become a security debate, arriving precisely when a record heatwave is testing grid capacity.
Europe's solar industry is pressing the European Commission for a formal decision on planned restrictions against "high-risk" suppliers, with the case gaining urgency as an unprecedented heatwave drives power demand across the continent. Fintan Devenney, senior energy analyst at Montel, said power demand was high across Europe during the heatwave period, "driven in part by increased cooling load."7 German power for the day ahead traded at €105.65/MWh on Monday (2026-07-14), down 1.9% on the session — elevated by any seasonal standard.7
The supply-chain concern the industry wants addressed dates to May, when an analyst told the Solar 2026 seminar in Helsinki on Tuesday (2026-05-19) that the bloc's reliance on components made in China leaves Europe vulnerable to potential attacks on its energy system.6 The bloc imports roughly 80% of its solar components from China. Absent a clear Commission decision on which suppliers will face procurement restrictions, project developers cannot commit capital to long-term contracts, lobbyists argue.6
China's hold on upstream solar inputs extends the risk well beyond finished panels. According to a study by MERICS, a German think-tank, Europe imports 98% of its rare earths from China, and China refines 60% of the world's lithium and 80% of its cobalt — both critical inputs for the grid storage that backs solar generation when output drops.4 A decision to restrict Chinese panel suppliers, without a parallel plan for the battery supply chain, could leave European grids doubly exposed.
The offshore wind sector already illustrates what happens when policy hesitation meets supplier concentration. Rystad Energy told Montel on Wednesday (2026-05-20) that turbine selling prices have risen 40-45% since 2020, roughly double the 20-25% increase in manufacturing costs, driven by dwindling competition among equipment makers.2 Solar could follow the same path if procurement uncertainty freezes investment decisions in the coming auction rounds.
A separate market debate is running in parallel on gas storage, and it illuminates the trade-off European policymakers face. Energy Traders Europe's gas committee chairman told Montel that the current EU-mandated 90% storage target — which must be met between 1 October and 1 December, with 5 percentage points of flexibility — risks distorting market prices.5 The lobby has called for a strategic gas reserve instead, arguing it would be the "lesser of two evils."5 Whether or not that reform advances, the interaction matters for solar: if solar capacity additions slow, gas-fired generation fills more of the peak load during heatwaves, keeping storage drawdown risk elevated.
ICE Endex TTF front-month gas sat at €53.79/MWh on Monday (2026-07-14), down 0.15% on the day — a level that still prices meaningful gas-to-power generation across northern Europe.7 A sustained squeeze on solar build-out would put upward pressure on TTF in peak-demand periods, feeding directly into EU Allowance demand via the carbon chain.
The broader dependency context is clear from a May think-tank assessment: Europe's exit from Russian energy reduced one vulnerability while opening another, as growing reliance on US LNG exposes the bloc to new external shocks.1 The solar supply-chain debate follows the same geometry, substituting Chinese panel manufacturers for American LNG terminals.
China also accounts for close to 6% of German exports, according to Deutsche Bank, by far the highest share in the EU, which limits how aggressively Berlin can push for restrictive procurement rules without triggering a commercial response.3 Brussels faces the same constraint at the bloc level.
The practical question now is whether the Commission issues a formal proposal on "high-risk" supplier criteria before the summer legislative recess. Developers entering the autumn auction season without that clarity will be making supply-chain commitments blind — and the heatwave of June 2026 has already shown what European grids look like when solar is asked to carry peak cooling load without reserve margin.7,6