Two Films, One Edge: Europe's BESS Arbitrage, Read via ENTSO-E

We just released two new English films. Both make the same point from two angles: in Europe, the battery edge lives in the data — the day-ahead market read through ENTSO-E, and the battery read register-true, value by value. Here is what they show, and why it is country-specific.

Why ENTSO-E is the starting point

Stromfee reads the European day-ahead market from the ENTSO-E Transparency Platform — the EU's official source for hourly wholesale electricity prices. That is the spread a battery arbitrages. It is real, and it moves: on 11 June 2026 the German day-ahead price ran from €30 to €187/MWh — a spread of about €157/MWh in a single day. Power markets are landestypisch — country-specific in design and rules — which is exactly why a generic optimizer struggles and a BESS-specific A.I. does not.

Film 1 — Stromfee presents: BESS — The Film

Stromfee, an A.I. for battery storage, hosts a cinematic walk-through: world power markets for live arbitrage, and register-true transparency from the container down to a single cell. It is the foundation skill — the battery and the market it lives in.

Film 2 — Inside the Battery — 1,700 Measurements

Inside one battery, Stromfee reads around 1,700 live values, organized into 47 Modbus groups — register-true, from grid to cell. One digital twin: the data most operators never get to see. This is the transparency layer that makes the arbitrage trustworthy.

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The same edge, in every market

Europe is one market among many on the radar. The same register-true approach already runs elsewhere — explore the country views:

• Australia — stromfee.cloud/au
• United States — stromfee.cloud/us
• Mauritius — stromfee-mauritius.ai

See Europe live: the Stromfee market radar & blog →