A widening gap despite record public spending
In its latest “Risk & Opportunities” publication, Société Générale’s economic research team, authored by economist Francesco Pestrin, revisits the core argument of Mario Draghi’s 2024 competitiveness report: decarbonisation is no longer just a climate objective for the European Union, it is a condition for staying competitive against the United States and China. High and volatile energy prices, a structural fossil-fuel trade deficit, and rising trade-distorting subsidies from China, India and the United States for products like EVs and solar panels are compounding the pressure on European industry.
Green investment has grown substantially, reaching an estimated €340 billion a year by 2024. Yet according to a cross-check of five independent sources — the European Commission, the IEA, I4CE, BloombergNEF and the European Environment Agency — the EU needs a median of €480 billion in additional annual investment between 2025 and 2030 to stay on track for its climate targets, equivalent to roughly 2.7% of 2024 EU GDP. Applying the sector’s typical 1:5 public-to-private leverage ratio, that breaks down into an estimated €80 billion public shortfall and a €400 billion private shortfall per year.
Where the money is meant to come from
Brussels’ answer is the Clean Industrial Deal (CID), unveiled on 26 February 2025, which aims to mobilise more than €100 billion to support European clean manufacturing. The package combines €20 billion from the Innovation Fund, €30 billion in additional EU Emissions Trading System revenue, and €50 billion from a revised InvestEU programme, including €1 billion in guarantees through 2027. A new Industrial Decarbonisation Bank, expected to launch a pilot by late 2025 and become operational in the second quarter of 2026, will channel this financing.
Even fully deployed, the €100 billion would only close the €480 billion annual gap by around €17 billion a year. Public EU funding is, for now, largely on track: the report finds that committed EU budget resources should cover the sector’s baseline public financing needs through 2030, and the additional €80 billion a year required through 2025-2030 is expected to be offset by Recovery and Resilience Facility (RRF) commitments only until 2026, when that programme expires. What happens to public funding after 2026 — and how the CID will be financed ahead of the EU’s 2028-2034 budget — remains an open question, the report notes.
Six clean technologies, one financing shortfall
The report zooms in on the six clean technologies covered by the EU’s Net-Zero Industry Act (NZIA) — wind, solar PV, heat pumps, battery cells, electrolysers and carbon capture and storage. To meet the NZIA’s target of domestically producing at least 40% of the EU’s annual deployment needs for these technologies by 2030, the Commission estimates the EU must mobilise an additional €64-67 billion by 2030, on top of already-allocated public and private investment. Under a more ambitious “NZIA+” scenario without reliance on clean imports, that gap widens to €86-89 billion. Battery cell manufacturing alone accounts for the largest share of both the investment need and the projected job creation, with an estimated 261,000 to 294,000 additional manufacturing jobs required across the six technologies by 2030.
Mobilising private capital: the next frontier
The structural obstacle, the report argues, is not a shortage of liquidity but a mismatch between what banks and investors are prepared to fund and what the energy transition requires. European venture capital investment in cleantech reached €9 billion in 2024 — ahead of China’s €6 billion but less than half the United States’ €17 billion. European households, meanwhile, hold 31% of their financial assets in cash and deposits versus 11% in the US, reflecting a broader risk aversion that also constrains institutional investors such as pension funds and insurers from allocating more to private equity and venture capital.
Public de-risking instruments are seen as the key lever to change this dynamic. A recent agreement between Société Générale and the European Investment Bank illustrates the model: a €500 million EIB counter-guarantee is enabling the bank to unlock €8 billion in financing for wind turbine manufacturing. The EIB plans to extend similar guarantee schemes, including a new “Grids Manufacturing Package” for electricity grid component makers, while the Commission’s Temporary Crisis and Transition Framework has already allocated more than €85 billion in state aid to support the industrial transition.
Longer term, the report points to Europe’s Savings and Investments Union (SIU) and a fully operational Banking Union as the structural fixes needed to channel household savings and cross-border bank liquidity toward the transition. With 41 stock exchanges across the EU compared with 16 in the United States, market fragmentation continues to limit listing activity and liquidity — a gap that a pan-European long-term savings product, currently under discussion following the Letta and Noyer reports, is intended to help close.
What’s next
The Clean Industrial Deal addresses real bottlenecks on both the demand and supply sides of green financing — from faster permitting to EIB guarantees for power purchase agreements. But the report is clear-eyed about its limits: the CID remains, in its own words, more a roadmap of solutions than a fully financed and implemented programme, and high energy prices continue to weigh on investor confidence in European cleantech. Completing the single market for capital, in coordination with the CID’s industrial policies, is what the report identifies as the decisive next step.
Frequently asked questions
How large is the EU’s annual green investment gap?
Société Générale estimates a median gap of €480 billion per year between 2025 and 2030, based on a cross-check of five independent sources, with roughly €400 billion of that expected to come from private capital.
How much funding does the Clean Industrial Deal provide?
The CID aims to mobilise over €100 billion, combining €20bn from the Innovation Fund, €30bn in ETS revenue, €50bn via InvestEU, and €1bn in guarantees through 2027 — enough to close only around €17 billion of the annual gap.
Why isn’t private capital flowing faster into EU cleantech?
The report points to weak venture capital absorption, limited household and institutional risk appetite, bank “bankability” criteria that many early-stage green projects fail to meet, and a fragmented EU capital market that limits scale.
