Stromfee.US · battery revenue, explained
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Stromfee.US · arbitrage levers · revenue transparency
D3

Real day-ahead price curve

▶ Explainer · ~37 s

The raw hourly day-ahead LMP curve at CAISO SP15 for the most recent trading day — red zero line: below it, prices are negative.

Live data

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Where does arbitrage arise?

This shows the CONCRETE entry points: the midday solar trough (often negative) to charge, the evening net-load peak to discharge. The duck curve is the US version of what German batteries trade — same physics, different hours.

Who earns what — and where?

US market roles, cleanly separated (FERC market design).

Power marketer / Scheduling Coordinator (SC)

Timing tool: exactly these lows and highs are where buy/sell orders land.

Asset operator

Sees whether the day offers enough spread for an economic cycle.

Investor

Understands the volatility the return lives on.

Utility & ISO/RTO

The LMP is market-wide; utility and ISO do not trade it.

Settlement-quality data: the potential shown here only becomes real revenue if it can be cleanly settled — revenue-quality meter data and ISO settlement statements decide what is billable. Stromfee builds exactly this transparency layer. (How we solved it in Germany: metering-data deep dive.)
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