Watts x quantity x hours
Daily loads are totalled, then growth is applied.
Solar planning studio
Plan power around what matters.
Bring together the loads, site conditions and backup expectations that shape a responsible first project conversation.
- 01
- LoadWhat will run, and when
- 02
- SiteRoof, shade, grid and heat
- 03
- ResilienceBackup intent and growth
Video walkthrough
See the full calculator flow before entering your load.
This short demonstration shows how to add realistic appliances, describe the site, choose a backup target and read the resulting engineering checks.
- 01Build the loadUse actual quantity, watts and daily runtime.
- 02Describe the siteAdd grid, roof, shade, cable and heat conditions.
- 03Choose resilienceSet backup hours, night use, reserve and growth.
- 04Read the checksTreat the result as a planning range for engineer review.
Guided in four gentle moves
Watch the inputs become an engineering brief.
Start with the appliances you truly expect to run together.
The planning method
Clear assumptions. Useful next questions.
The model applies location-based peak-sun-hours, 79% system derating, site-type diversity, the largest declared surge, selected growth margin, battery depth of discharge and conversion efficiency.
Energy / sun / efficiency
Shade and exposure factors increase the design array.
Backup demand / usable fraction
Chemistry and autonomy convert usable to nominal capacity.
Peak plus largest surge
Headroom, diversity and an assumed power factor set the class.