The Spread

How wide is the gap each day between the cheapest and most expensive hour of electricity?

Daily spread (TB1) — Germany

Spreads are computed on hourly-averaged prices. Since the Oct-2025 quarter-hourly market switch, true 15-minute spreads are wider — these figures are a conservative lower bound.

Negative-price hours per month

Perfect-arbitrage revenue, 1 MW / 2h battery

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