— Insights
Market analysis & battery arbitrage notes.
Europe's Battery Markets Are Converging
15 JUN 2026
A year ago, the map of European battery arbitrage had a clear top and a clear bottom. In the first twelve days of June 2025, a 1 MWh battery running a simple…
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The battery's cheapest hour is going negative
1 JUN 2026
We have been looking at the cheapest two hours of each day across every European market we cover. That is the window a one megawatt battery would charge in,…
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European battery arbitrage split in two this spring
25 MAY 2026
We have just finished simulating the first five months of 2026. A one megawatt battery, charging in the two cheapest hours of each day and discharging in the…
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Three European BESS markets are pulling away from the rest. Here is what they have in common.
18 MAY 2026
Five years ago, the question “when does a European battery actually charge?” had the same answer almost everywhere on the continent. Before dawn. Between two…
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Bulgaria just installed 12.5× the BESS it had a year ago. Why is the market still underpricing CEE?
10 MAY 2026
On 28 January 2026, SolarPower Europe published its EU Battery Storage Market Review 2025. The headline number: 27.1 GWh of new battery storage installed…
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The Price Floor Is Moving Again. Here's What That Tells Us About Solar Saturation in Europe.
8 MAY 2026
We pay attention to SDAC price floor changes because they are not market opinions. They are the regulatory system telling us, through a rules-based mechanism,…
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The Anatomy of a Greek Spread: What Five Years of Battery Arbitrage Data Tell Us About Where Power Markets Are Going
6 MAY 2026
We want to do something specific in this piece. Rather than publish another optimistic BESS deck, we want to take five years of Greek wholesale data, run a…
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Germany Just Broke the Grid. Batteries Win.
3 MAY 2026
What Happened Labour Day, 2026. Germany’s solar panels were generating at full capacity. Wind was strong. Industrial demand was near zero for the holiday. The…
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