IE-SEM · battery revenue index
Was ein Batteriespeicher in Ireland (SEM) verdient
Der tägliche BESS-Erlösindex für IE-SEM: Day-Ahead-Arbitrage bei perfekter Voraussicht, pro MW — die transparente, reproduzierbare Obergrenze — für Standard-Anlagen mit 1, 2 und 4 Stunden Dauer, methodisch versioniert (BESS-v2), nie nachträglich korrigiert. Reale Projekte verdienen weniger; der Explorer rechnet Ihren Wirkungsgrad, Ihre Zyklen, Verfügbarkeit und Degradation ein — und zeigt, was der Handel auf unserer Prognose (statt einer Kristallkugel) tatsächlich einfängt.
1h-System · letzte 30 Tage
€2,838
pro MW · Ø €98/Tag
bester Tag: €570 (2022-03-09)
schwächster Monat: €635 (2020-07)
2h-System · letzte 30 Tage
€5,370
pro MW · Ø €185/Tag
bester Tag: €1,140 (2022-03-09)
schwächster Monat: €1,177 (2020-07)
4h-System · letzte 30 Tage
€9,677
pro MW · Ø €334/Tag
bester Tag: €2,095 (2022-03-09)
schwächster Monat: €2,073 (2020-07)
Daily revenue, 2h system · last 90 days · €/MW
Warm bars = strong days, cool = weak — both stay on the record. Peak in window: €427/MW.
How to read these numbers
The index is the arbitrage ceiling: a battery that knew each day's prices in advance, charging the cheapest hours and discharging the most expensive at 90% round-trip efficiency, one cycle per day. It's deliberately simple — simple is auditable, and auditable is the point. Your project's number is lower: forecast error (see the explorer's Volt foresight capture rate), availability, degradation strategy, grid fees. The ceiling's job is to be the stable benchmark those haircuts apply to — comparable across every zone and every year back to 2015, through the 2021–22 crisis the newer indices' histories don't reach.
Where IE-SEM has the data, the API also returns the day's IDA1-arbitrage figure and the FCR/aFRR capacity alternatives — shown side by side, never summed, because the same megawatt can't do both at once. Full method, including what v2 does not model: methodology.
Cite freely with attribution: "Voltcast Battery Revenue Index" + link. Data: ENTSO-E / SMARD (CC BY 4.0) day-ahead auction results.