- High-voltage premium brands: €315.3/kWh (+7 percent vs the previous month)
- High-voltage performance brands: €154.1/kWh (+10 percent vs the previous month)
- Low-voltage brands: €94.4/kWh (+7 percent vs the previous month)
Premium high-voltage systems cost about 3.3 times as much per kWh as low-voltage products in September, with performance-tier brands in between.
Top 5 residential battery brands
Deye topped the ranking by capacity sold on sun.store over the three months to September 2026. Further down, established storage specialists and inverter makers that have branched out into storage continued to trade places.
sun.store
Commercial battery storage prices, 20–120 kWh
- 20–60 kWh: €209.7/kWh (unchanged vs the previous month)
- 60–120 kWh: €199.2/kWh (+5 percent vs the previous month)
In the commercial segment, prices held steady in the 20–60 kWh class and firmed in the 60–120 kWh class. Even so, the larger systems still cost about 5 percent less per kWh than those in the smaller class.
sun.store
Most offered commercial battery systems
The products with the widest presence across active listings on sun.store in September 2026:
20–60 kWh systems
sun.store
60–120 kWh systems
sun.store
August Battery Index: storage prices soften across residential and commercial
Battery price trends Europe 2026: the key takeaways
- All three residential tiers rose in September, by between 7 and 10 percent
- High-voltage premium systems remain the most expensive residential category, with performance-tier brands priced well below them
- Low-voltage pricing rose by 7 percent to €94.4/kWh
- Commercial pricing held steady in the 20–60 kWh class and firmed in the 60–120 kWh class
- Deye led the residential brand ranking, the top four were unchanged and LRT was a new entry in fifth place (hcn)
