CAPEX Benchmark
Investment costs in market comparison.
Reference ranges for turnkey BESS systems — consistent with our CAPEX knowledge article.
Indicative values for Germany 2025/2026; project-specific costs may differ. Sample data for illustration.
Turnkey CAPEX by storage duration (€/kWh)
Cost blocks (share of total CAPEX)
| Battery system | 35–45 % | |
| PCS & transformer | 10–15 % | |
| Grid connection | 10–20 % | |
| Civil works & foundations | 8–12 % | |
| Engineering | 5–10 % | |
| EMS / SCADA | 5–8 % |
Costs for your project?
The ROI calculator computes CAPEX and revenues project-specifically.