German BESS Revenues Remain Robust in July Despite Narrower Spot Spreads
Large-scale battery energy storage system (BESS) revenues in Germany demonstrated remarkable resilience in July 2026, maintaining strong performance despite a slight monthly dip. According to estimates by energy consultancy Enervis, monthly revenues for utility-scale batteries reached approximately €16,950 per MW in July.
While this figure represents a 6% decline compared to the previous month, it remains a robust 40% above the low levels recorded during the same period in July 2025. This year-over-year growth underscores the increasing value that battery storage provides to the German energy system, particularly in managing the complexities of a high-renewable grid.
Market Volatility and Price Dynamics
The slight revenue contraction in July was primarily driven by narrower spot-market spreads, with day-ahead price spreads falling by about 20% from June. However, underlying market volatility remained relatively high. Evening electricity prices were elevated, largely driven by rising natural gas prices, while near-zero prices were frequently observed during periods of peak photovoltaic (PV) generation.
Stable balancing-market prices partially offset the weaker spot spreads, providing a crucial revenue floor for battery operators and demonstrating the importance of diversified market participation strategies.
Historically, German monthly storage revenues peaked at €18,900/MW in September 2025 and hit a low of €5,700/MW in December 2025. Revenues typically surge during the summer months due to strong PV generation, lower overall electricity demand, and reduced conventional generation capacity. Over the past 12 months, the average monthly revenue was slightly above €12,900/MW.
Looking ahead, Enervis projects annual revenues of €151,500/MW for a typical stand-alone battery storage system in 2026. This projection is based on a 1 MW/2 MWh system with a two-hour duration, limited to 1.5 cycles per day, and assumes 90% depth of discharge, 97% technical availability, and 87% round-trip efficiency.
Source: ESS News
This article was assisted by AI analysis. Please refer to the original source for official information.