Generation

Plan solar production by month, not one annual sun number

Use a location-aware production model for early planning, then treat its monthly result as a range. Roof angle, shade, dirt, temperature, parking direction, and weather all affect the actual harvest.

Use location data transparently

Show the climate data source, station distance, model version, orientation, tilt, and loss assumptions alongside every estimate.

Design for the limiting period

For a mobile or seasonal setup, the critical period is the trip or month when load is highest relative to expected generation, not the annual average.

Keep a backup decision explicit

If the plan depends on alternator charging, shore power, or a generator, show that dependency clearly instead of describing the system as solar-only.

Continue planning

Turn this decision into a power plan.

Carry the planning question into the system sizer, then verify the component specifications it makes relevant.

Editorial record

Maintained by Make Your Own Tools to turn “Size off-grid power” into a defined daily wh, battery reserve, panels, and inverter. The references below provide the technical context for this planning path. Its calculation rules and planning assumptions are documented in the methodology, and affected calculations pass regression checks before the review date advances.

Last reviewed
Evidence set
3 primary references
Calculation coverage
2 affected rules checked
Planning scope
Location-aware production planning and the seasonal constraints around an off-grid load baseline.
Next check
Carry the result into actual shade, orientation, mounting, travel-pattern, and backup-charging checks.