Author
Lennard Wilkening
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Articles written by Lennard Wilkening
Steady but not static: Battery revenues in January 2026
January brought a largely balanced power system to Germany, with firm winter demand, scarce negative prices, and contained volatility. Yet beneath stable price levels, revenue opportunities shifted across wholesale and balancing markets. Lennard Wilkening, CEO and Co-Founder of suena energy, breaks down how battery optimization performed in this compressed yet still actionable market environment.
Mar 02, 2026
A calm end to 2025, with flexibility still paying off
December closed out 2025 in Germany with a well-balanced power system, and the lowest battery revenues of the year. Fewer price signals, flatter load curves, and softening reserve prices tested the limits of single-market strategies. Lennard Wilkening, CEO and co-founder of suena energy, breaks down what defined the month and what it means heading into 2026.
No extremes, except one: Battery trading in a surprisingly steady November
November brought calm to Germany’s power market. As volatility dropped and price spreads narrowed in a well-supplied system, battery revenues became harder to capture. Lennard Wilkening, CEO and co-founder of suena energy, unpacks what this meant for BESS operators and why multi-market coordination proved essential once again.
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Stacking value in a changing market: BESS revenue in October
October brought a fundamental shift to battery trading dynamics In Germany as the day-ahead market switched from hourly to 15-minute intervals. Lennard Wilkening, CEO and Co-Founder of suena energy, breaks down how this structural change, combined with shifting weather patterns, reshaped revenue opportunities – and why tactical responsiveness across markets will only grow in importance as winter volatility sets in.
Back in motion: Battery revenues surge as volatility returns
After a relatively slow couple of months, September brought back a more favorable trading environment for battery operators in Germany. Lennard Wilkening, CEO and Co-Founder of suena energy, unpacks what drove the rebound and why precision and the right strategy are set to matter even more as day-ahead trading transitions to 15-minute granularity.
Between the peaks: Battery strategy in a moderate August
After a dip in July, battery storage revenues in Germany posted a modest recovery in August. Drawing on his company’s August revenue benchmark, Lennard Wilkening, CEO and co-founder of suena energy, explores what drove the recovery – and why adaptive, multi-market strategies continue to outperform static approaches even when market conditions are neither volatile nor flat, but somewhere in between.
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Profitability in quieter markets: what July revealed about battery strategy
After two record-breaking months for battery storage revenue in Germany, July brought a sharp shift: fewer price spikes, softer ancillary markets, and a steep drop in arbitrage opportunities. Drawing on Suena Energy’s latest monthly benchmark, the company's CEO and co-founder, Lennard Wilkening, unpacks the July revenue dip, what it signals about shifting market regimes, and why dynamic, multi-market optimization remains essential – especially when volatility fades.
Why the strategy is key: Lessons from real-world benchmarks
Maximizing value from battery energy storage systems (BESS) isn’t just about having the right hardware – it’s about executing the right strategy. Lennard Wilkening, CEO and co-founder of Germany's suena energy, explores what makes standalone BESS profitable in increasingly competitive and volatile market, and what real-world benchmarks, such as suena’s monthly revenue update, reveal about the role of dynamic multi-market optimization.
Battery storage on a capacity market
In Germany – but not only there – there is a heated debate about the pros and cons of a capacity market. The German Renewable Energy Association is against it, and recently the German New Energy Industry Association, the DIHK and the EEX energy exchange have also taken a clear stance: Germany does not need a “power plant subsidy program.” In this article, four experts explain why battery storage can also play an important role in a capacity market and make recommendations on how the design of the market can help avoid mismanagement, wrong incentives and unnecessary costs.
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