GreenVoltis Single-Day Revenue Claim and Mimer Check (2026)

A vendor LinkedIn post (posted 8 Oct 2026) says a GreenVoltis 1h/1C battery earned 30,821 kr per MW in a single day, 7 October, which it calls the year’s revenue record for such a battery, “netto” (after electricity, imbalance and trading costs). The method it names is multimarket stacking, with the grid connection managed so that the power tariff “bara landar på hälften av den installerade batterieffekten”. The post does not disclose the site, bidding zone, market split or exchange rate. It is a vendor claim, not a measured or audited figure.

Check against Svk Mimer capacity prices

The raw is the maintainer’s staging note. It holds the post’s quotes and a daily sum of Mimer’s 24 hourly capacity prices (EUR/MW-day) for 6 to 8 October, an earlier-session aggregation of Mimer’s downloadable data that has not been re-derived for this page.

• 7 October was the third-highest daily SE4 mFRR-up capacity sum since 1 July 2026 (higher: 2 Oct at 1,928 and 15 Sep at 1,835); the highest hour was 18:00 at 190 EUR/MW. FCR prices were low that day, so FCR cannot explain a record.
• 30,821 SEK is about 2,800 EUR at Svk’s published rate for stödtjänster (10.95 in June 2026). Adding every capacity product in the table for 7 October (1,681 + 330 + 64 + 65) gives about 2,140 EUR/MW, and one battery cannot stack them all on the same capacity. The claim would therefore need substantial energy, arbitrage, activation or imbalance revenue, none of which is in Mimer capacity data. Day-ahead and imbalance prices were not checked.
• Mimer confirms that 7 October was an unusually strong SE4 mFRR-capacity day, consistent with an SE4 site. The site is not stated.

Relevance

Use only as a clearly labelled vendor-claimed data point, never as a measured figure in a revenue table. It illustrates that a single strong mFRR-capacity day can lift a stacked battery far above its monthly average, and that the energy side matters. See Nordic Battery Revenue Trends 2023–2026 and The Swedish BESS Business Case — Revenue Stacking and the FCR Saturation Problem.

Limits of this summary

The post page itself and Mimer were not re-read for this page; everything comes from the staging note.