Stromfee.US · battery revenue, explained
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Stromfee.US · arbitrage levers · revenue transparency
D4.4

Real-time imbalance settlement

▶ Explainer · ~37 s

Detail view of the Real-time imbalance settlement for battery storage in US ISO markets — the feasible charge/discharge schedule, every transaction in $.

Where does arbitrage arise?

Imbalance energy: the result of unavoidable forecast deviations, settled at real-time LMPs. Highly volatile and decoupled from day-ahead — opportunity AND risk. Deviations between schedule and metered output settle at real-time LMPs. Concept page — settlement data is asset-specific.

Who earns what — and where?

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

Power marketer / Scheduling Coordinator (SC)

Imbalance arises from UNAVOIDABLE forecast error. A good SC minimizes uninstructed deviations — deliberately leaning against the system violates ISO market rules (FERC-approved tariffs).

Asset operator

Provides fast response; bears the risk that real-time prices turn against the position. Only sensible with good forecasting.

Investor

Highest risk/reward of the energy products. Not a base business case — incremental yield for experienced marketers.

Utility & ISO/RTO

Imbalance settlement is the ISO's accounting mechanism for schedule deviations — not a utility revenue stream.

Data status: No live US price feed for this product in our database yet — concept page; integration is planned. No numbers are shown rather than estimated ones.
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.)