Start from PV production and site load
A solar storage cabinet should not be selected from PV capacity alone. The useful battery capacity depends on how much daytime PV surplus exists, when the site consumes power, whether export is limited, and how much energy should be reserved for backup.
For a faster review, provide PV inverter capacity, historical generation data where available, interval load data, export rules, AC connection point, and the target operating objective.
- Shift daytime PV surplus into evening or tariff-peak periods.
- Reduce export, curtailment, or low-value grid feed-in where local rules allow.
- Reserve part of the battery for backup only when the electrical architecture supports it.
How the cabinet configuration is reviewed
The correct cabinet configuration depends on usable kWh, PCS power, charge duration, discharge duration, cooling method, outdoor rating, monitoring, and local documentation requirements. The final quotation should define whether PV coupling, EMS logic, installation, and commissioning are included or excluded.
