Charge cheap, discharge when it pays
How the Battery plan turns tomorrow’s price forecast into a charge and discharge plan for your battery.
How it works
- Forecast tomorrow’s prices for every quarter-hour, before the 12:00 CET auction.
- Find the charging times — the cheapest hours your battery can use.
- Find the discharging times — the most expensive hours.
- Calculate the potential revenue of that plan for your battery size, efficiency and cycle limit.
- Compare it with a reference strategy — the same battery planned on yesterday’s prices.
What the Battery e-mails look like
Real e-mails generated for an example 1 MW / 2 MWh battery in Germany–Luxembourg for Fri 13 Nov 2026. The plan arrives in the morning before the auction; the result follows once the day’s prices are published.
Simulated settlement on day-ahead prices, before fees. The plan for a day is based on the forecast made the morning before; it is shown here only after that day’s prices were public.
A 24-hour cycle
Illustration of a typical day with two cycles. Real plans depend on the forecast, your battery and your limits.
How much would your battery earn with our forecast?
Extra day-ahead revenue vs planning on yesterday’s prices
≈ €10,162 per year
95 % confidence interval of the yearly average €8,319 – €12,263. Simulated on past prices (backtest) over 366 days (7 Nov 2025 – 7 Nov 2026), before fees, day-ahead only.
Share of the best possible result (prices known in advance): our forecast 90.5 %, yesterday’s prices 79.5 %. Planning on yesterday’s prices lost money on 23 of 366 days.
For a 2-hour battery (1 MW / 2 MWh); other durations: ask us. Figures scale linearly with power from a 1 MW / 2 MWh reference battery.
Battery plan: a daily schedule for this batteryRevenue figures are simulated on past prices, not guaranteed.