Solar Design Tool
Estimate the backup and solar capacity your facility actually needs.
Start with a Quick Estimate from your critical loads and outages. Switch to Technical Sizing if you have a full device inventory.
Quick Estimate · default
Your critical loads, in a few taps
See an indicative power, storage and solar range straight away. No sign-up needed.
Have a full device inventory? Switch to Technical Sizing
Your estimate · unverified
- Indicative load
- 325 W connected · 3.2 kWh/day
- Recommended power
- 500–700 W
- Estimated storage
- 2.4–3.1 kWh
- Solar to recharge daily
- 0.8–1.0 kWp
Likely system category
A portable power station may fit these loads.
Suitable ready-to-buy options
- This is a preliminary estimate, not a design. It assumes 5 peak sun hours, 20% system losses and 90% usable battery capacity. Final design requires site verification.
- For sensitive or critical medical equipment, compatibility must be confirmed from the device nameplate, surge demand and manufacturer requirements before purchase or connection. Fridges, fans, lab equipment and pumps draw a higher starting current; we assume 3× their running power when checking ready-to-buy units.
Technical Sizing · advanced
Size from a full device inventory
Enter device wattage, quantity and hours per day, plus your grid or diesel costs.
Only know your main loads? Back to Quick Estimate
Solar design & cost analysis
Calculate your energy requirements and compare costs
Device inventory
List the main devices that consume electricity at your site.
Daily kWh0.00
Daily kWh0.00
Site energy profile
Share of current energy costs replaced by solar
Total daily load: 0.0 kWh/day