How a battery earns in Austria

Austria trades as a single day-ahead price zone operated by transmission system operator Austrian Power Grid (APG). By end-2025 renewables already covered 78.9% of national electricity demand — roughly 9.8 GW of solar and 4.3 GW of wind — yet the grid is straining: APG spent €87.2 million on redispatch in 2025 and the country slipped back to being a net electricity importer. There is no standalone-storage subsidy: the EAG investment grant of €150/kWh pays only for batteries paired with a new or expanded PV system, so grid-scale projects live purely on the market. Grid tariffs for standalone batteries are still being reworked — E-Control's SNE-GV reform enters into force on 1 Jan 2027, with favourable treatment reserved for ‘system-beneficial’ co-located storage. Against that backdrop the arbitrage is concrete: the 30-day day-ahead spread averaged €141/MWh — about 124% of the average price — the base a battery captures by charging cheap and discharging dear, stacked on top of FCR and two-part aFRR balancing revenue.

€141/MWh

30-day day-ahead spread — 124% of the average price (30 days)

78.9%

of Austria's electricity consumption covered by renewables (2025)

€87.2M

APG redispatch / congestion-management cost in 2025