Solar resource
Use project-location irradiance and the actual module orientation/shading rather than a generic sun-hour assumption.
SOLVARNSolar Outdoor Systems
Energy Balance Planner
Make generation, storage, reserve and daily loads visible in one scenario.
Use project assumptions to test the relationship between PV generation, usable battery energy and defined outdoor loads. The result is a planning balance only—not a solar-yield forecast, autonomy guarantee or electrical design.
Energy assumptions
Enter the configuration you actually want to test.
Before a system is released
Close the variables the calculator deliberately cannot know.
Real performance depends on site solar resource, module layout, shading, temperature, exact battery/BMS limits, inverter/control logic, load timing and whether mains support is available.
Exact battery limits
Confirm usable depth of discharge, temperature range, charge/discharge limits and reserve behaviour from the selected battery/BMS.
Inverter + controls
Confirm continuous/surge capacity, conversion efficiency, protection and load-shedding priorities.
Load timing
Motor starts, lighting schedules and auxiliary loads may coincide even when daily energy totals look small.
Mains support
Where mains charging is available, define when it is allowed and how it interacts with solar/battery control.
Replacement access
Battery, inverter and control components should remain inspectable and replaceable over the system life.
Use the balance as a project input