Government Policy, Market Factors Encouraging Co-Location of Renewables and BESS

Why It Matters

Supportive policies turn marginal renewable projects into profitable, grid‑stabilizing assets, accelerating Europe’s clean‑energy transition and attracting capital.

Key Takeaways

• Policy subsidies directly boost renewable‑plus‑storage project economics.
• Europe’s co‑located capacity grew 192% from 2023 to 2025.
• Solar‑plus‑storage surpassed wind‑plus‑storage in total capacity in 2025.
• Batteries enable renewables to provide ancillary services and reduce curtailment.
• Expected curtailment rise: 55% in Spain, 115% in the UK by 2030.

Pulse Analysis

Government policy and market dynamics are the twin engines driving the rapid rise of renewable‑plus‑storage projects across Europe. Subsidy schemes that reward both generation and stored energy give developers a clear financial incentive, while policy signals reassure investors of long‑term revenue streams. Aurora Energy Research highlights that such supportive frameworks can materially improve a project's business case, turning otherwise marginal assets into profitable ventures. As more jurisdictions tailor incentives to co‑located assets, the sector is poised for accelerated deployment.

The Aurora report shows co‑located capacity in Europe expanding from 2.1 GW in 2023 to 6.3 GW by the end of 2025 – a 192 % surge. Solar PV now leads the mix, with solar‑plus‑storage overtaking wind‑plus‑storage in total capacity for the first time in 2025. Batteries add flexibility, allowing solar output to be shifted to peak demand periods and to provide ancillary grid services, which improves project economics and mitigates curtailment pressures that are projected to rise sharply in Spain and the UK.

The surge in solar‑plus‑storage reshapes Europe’s pathway to a 1,102 GW renewable target for 2030, where solar is slated to deliver 592 GW. Investors are increasingly viewing co‑located assets as a hedge against curtailment and a source of ancillary revenue, prompting a wave of financing activity. However, the rapid build‑out also underscores the need for grid reinforcement and market rule adjustments to fully capture storage value. Stakeholders that align with evolving policy incentives are likely to capture the strongest returns as the continent accelerates its clean‑energy transition. This momentum positions Europe as a global benchmark for integrated renewable‑storage deployment.