The residential segment, up to 20 kWh, developed as follows:
- High-voltage premium brands: €305.5/kWh (-7% vs the previous month)
- High-voltage performance brands: €198.1/kWh (-10% vs the previous month)
- Low-voltage brands: €88.2/kWh (-19% vs the previous month)
High-voltage premium systems traded at about 3.5 times the level of low-voltage products this month. Performance-tier high-voltage brands sit between the two.
July Battery Index: residential and commercial diverge
Top 5 battery brands
sun.store
Ranked by capacity sold over the three months to August 2026, Deye held the top position. Below it, the ranking continued to shift between established storage specialists and inverter-led brands that have expanded into storage.
Commercial and industrial segment, 20–120 kWh
sun.store
- 20–60 kWh: €208.9/kWh (-5% vs the previous month)
- 60–120 kWh: €190.3/kWh (-1% vs the previous month)
Commercial storage pricing eased in both size bands. The larger 60–120 kWh class prices about 9 percent below the smaller systems per kWh.
Most offered products
The products with the widest presence across active listings on sun.store in August 2026:
20–60 kWh systems
sun.store
60–120 kWh systems
sun.store
Battery price trends Europe 2026, key takeaways
- High-voltage premium systems remain the most expensive residential category
- Performance-tier high-voltage brands continue to sit well below premium pricing, keeping the two tiers clearly separated
- Low-voltage pricing eased this month
- Commercial pricing eased in both the 20–60 kWh and 60–120 kWh classes
The leading residential brand held its position, even as the ranking below it continued to shift, underlining how contested this segment has become. (hcn)
