Loads before batteries

Make the energy
assumptions visible.

A build-specific energy scenario, not an electrical design or guaranteed runtime. Daily energy, concurrent running power and starting demand are separate.

Save stores explicit inputs with this browser’s named build and its JSON export. Blank inputs remain unknown. A source laboratory energy value is not your temperature/duty-cycle measurement. Solar yield, conversion losses and charging availability are assumptions; a daily balance does not guarantee autonomy.

Have a qualified designer check protection, wire sizing, grounding, isolation, temperature limits and installation. No circuit approval, battery chemistry setting or charging compatibility is inferred. Budget the build · Free unit tools · Manage builds and export