Choosing a solar battery takes more than comparing kWh. Check whether the project is new or a retrofit, AC or DC coupling, voltage and BMS, charge and discharge power, phases, backup, communications, scalability and warranty. Plug & Play Energy checks each configuration against real project data and current documentation.
| Project type | Architecture to assess | Data to verify |
|---|---|---|
| Project typeNew residential system | Architecture to assessAC or DC depending on ecosystem, functions and planned expansion. | Data to verifyConsumption, PV generation, phases, power, battery, BMS and backup loads. |
| Project typeRetrofit of existing PV | Architecture to assessAC coupling or explicitly documented DC expansion. | Data to verifyExact inverter model, voltage, BMS, firmware, metering, export and protection. |
| Project typeCommercial and industrial | Architecture to assessBESS with EMS according to operating goal and load profile. | Data to verifyLoad curve, power, goal, space, grid, protection and control strategy. |
| Project typeOff-grid or critical loads | Architecture to assessComplete generation, storage, control and backup system. | Data to verifyAutonomy, peaks, simultaneity, generator, reserve, temperature and failure modes. |
It depends on the project. AC coupling often simplifies retrofits and separates ecosystems; DC can provide direct integration in new or hybrid systems. Exact compatibility and losses must be checked using the complete design.
Calculate it using hourly consumption and generation, the goal, autonomy, power, depth of discharge and losses. Monthly consumption alone is not enough for correct sizing.
Not necessarily. DC requires documented compatibility between inverter, battery and BMS. AC may allow electrical coexistence, but this does not imply functional integration: metering, control, export and backup must be validated.
Not just capacity. C&I projects depend on power, load profile, EMS, grid connection, protection, space, operation, maintenance and the economic or operating goal. They require a specific study.
Send us the technical data and we will help define power, capacity, architecture and auxiliary equipment.
Updated 10 September 2026. Final selection is validated against current documentation and real project data.