Image: Michael Förtsch, UnsplashAt Sunlink (Xiamen), we track European energy policy closely because it shapes global solar demand and innovation. A new report from SolarPower Europe, modelled by Rystad Energy, delivers a striking conclusion: accelerating solar PV and battery storage deployment could cut EU power system operating costs by 49% compared with 2025 levels – while saving €223 billion in gas imports between 2026 and 2030.
The report, Solar+, compares a business‑as‑usual base case with a higher‑ambition scenario. Under the base case, the EU is on track to miss its 2030 solar target (574 GW vs. 600 GW) and its wind target (344 GW vs. 425 GW). But under the Solar+ scenario – 732 GW of solar and 600 GWh of battery storage by 2030 (up from 77 GWh in 2025) – the benefits are transformative.
The Numbers That Matter
Power system operating costs fall by 49% (€55 billion annual savings).
Wholesale day‑ahead electricity prices drop by 14% on average across selected EU markets to €63.4/MWh. Germany sees a 25% decline, Poland 16%.
Price volatility (4‑hour spreads) falls by 42%, making electricity markets more predictable for businesses and households.
Gas import savings from solar alone: €27.4 billion in 2025, rising to €53.3 billion annually by 2030 – cumulative €223 billion saved over 2026‑2030.
The Storage Critical Insight: Solving the Price Cannibalisation Problem
One of the most important findings addresses a common concern: as more solar floods the market midday, wholesale prices can collapse (the so‑called “cannibalisation effect”), hurting project revenues. The report quantifies the solution:
Pairing solar with battery storage raises PV + BESS capture prices by 73% on average across selected markets compared with standalone PV capture prices in 2025, with capture rates reaching 84%.
In plain language: a solar‑only plant may see falling revenues as solar penetration grows, but a solar‑plus‑storage plant captures much higher value by shifting generation to evening peaks. Storage transforms solar from a disruptive, price‑depressing technology into a dispatchable, high‑value resource.
Why the EU Is Not There Yet – And What Needs to Change
The report is clear that the barriers are structural and regulatory, not technological. Grid constraints currently put more than 120 GW of renewable capacity at risk across the bloc. Even though the EU installed 65.1 GW of solar in 2025, grid bottlenecks and market design issues are slowing progress.
SolarPower Europe calls for:
An EU Flexibility Strategy with a dedicated Battery Storage Action Plan aligned with the existing 200 GW storage target for 2030.
A coordinated EU Electrification Action Plan.
Updated connection codes and market rules that properly value flexibility, fast response, and storage.
Sunlink’s Perspective: A Blueprint for Solar‑Plus‑Storage Deployment
At Sunlink, we see the Solar+ scenario as not just aspirational but achievable – provided policymakers and industry work together. Here is how we interpret the findings for our customers and partners:
For developers and asset owners: The financial case for pairing storage with solar has never been stronger. A 73% capture price uplift means that in markets with high solar penetration (Germany, Spain, Italy), a hybrid PV‑storage plant can outperform a standalone solar plant even if the storage adds capital cost. Battery duration matters: 2‑4 hour systems are currently the sweet spot for capturing evening peaks.
For grid operators: The 42% reduction in price volatility is not just a statistic – it means less wear on conventional plants, fewer curtailment events, and a more stable market for long‑term contracts. Storage provides the flexibility that enables renewables to reach 68% of electricity supply (the Solar+ share) without destabilising the grid.
For energy buyers and corporations: Lower and less volatile wholesale prices translate into cheaper green power purchase agreements (PPAs). The Solar+ scenario predicts €63.4/MWh average day‑ahead prices – a level that makes corporate renewable PPAs highly attractive compared to fossil alternatives.
For policymakers: The report shows that missing the 2030 targets is a choice, not a necessity. The technology exists. The savings are enormous (€223 billion in avoided gas imports). What is missing is political will to remove grid bottlenecks, streamline permitting, and create storage‑friendly market rules.
Conclusion
The SolarPower Europe / Rystad analysis provides a clear roadmap: accelerate solar and battery storage, and the EU can cut power system costs by nearly half, slash gas imports, and lower consumer bills – all while reducing volatility and improving energy security.
At Sunlink, we are committed to delivering the PV and storage solutions that make this vision real. Whether you are a utility, a developer, or a corporate energy buyer, the message is the same: solar‑plus‑storage is no longer a nice‑to‑have – it is the economic and technical backbone of a low‑cost, resilient, and clean European power system.
Ready to capture the benefits of the Solar+ scenario? Contact Sunlink to discuss our integrated PV and battery storage solutions for European projects.