Preiskanibalisierung und negative Strompreise im Solarmarkt
Definition
Solar capture rate (actual revenue vs. market price) collapsed from 98% (2022) to 54% (2025). In May-June 2025, monthly capture rates fell below 0.45, meaning generators received only €0.43-0.44 per €1.00 of market reference price. Negative-price hours exceeded 300 in Q2 2025 alone, with prices ranging from -€64.31/MWh to +€102.56/MWh. Each year, the number of sub-50% revenue days doubles.
Key Findings
- Financial Impact: €billions in lost revenue: May 2025 capture price €19.97/MWh (37% YoY decline); June 2025 €18.43/MWh (61% YoY decline). Extrapolated annual impact: ~€8-12 billion lost merchant value across 100+ GW installed base at current cannibalization rates.
- Frequency: Continuous and accelerating: Capture rates fell below 50% 11 times (2022) → 31 times (2023) → 63 times (2024). Doubling annually.
- Root Cause: Unplanned overbuild of solar capacity relative to grid demand; no dynamic pricing or demand-response mechanism to balance supply-demand; legacy fixed-tariff EEG contracts prevent price signals reaching operators.
Why This Matters
This pain point represents a significant opportunity for B2B solutions targeting Solar Electric Power Generation.
Affected Stakeholders
Merchant solar operators, PPA-exposed projects, Grid operators, EEG account administrators
Action Plan
Run AI-powered research on this problem. Each action generates a detailed report with sources.
Methodology & Sources
Data collected via OSINT from regulatory filings, industry audits, and verified case studies.
Evidence Sources:
- https://energynews.pro/en/german-solar-revenues-drop-37-due-to-negative-power-prices/
- https://www.spglobal.com/commodity-insights/en/news-research/latest-news/electric-power/070925-price-cannibalization-hits-german-solar-in-q2-over-6-bil-needed-to-balance-eeg-account
- https://modoenergy.com/research/en/germany-2025-solar-cannibalisation-glut-subsidies-power-prices-bess