Country-specific irradiance data. Size your panels, batteries, inverter, and cable - and see your ROI vs running a generator.
🌍 33 African Countries🔋 Battery Bank Sizing💰 Generator ROI Comparison⚡ Off-Grid & Hybrid📊 10-Year Savings Projection
🌍 Select Your Country
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⚙️ System Setup
System Type
Panel Wattage per panel
Battery Type
Backup Days cloudy days
Panel Efficiency Loss %/year
Panel Direction roof layout
Shade Loss trees, walls, tanks
Dust / Soiling monthly cleaning
Usable Roof Area optional m2
Generator (Comparison) monthly fuel cost
🔌 Your Appliances
Quick Load Presets
Appliance
Watts
Qty
Hrs/Day
Total Daily Load0 Wh
Peak Power Demand0 W
System with 25% Buffer0 Wh
📊 Your Solar System
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Solar Panels
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Batteries
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Inverter Size
- kWp
Panel Array
- kWh
Battery Bank
-
Monthly Savings vs Gen
-- h
Effective Sun
-- m2
Roof Area Needed
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Panels
- × -W
→
🔄
Charge Controller
- MPPT
→
🔋
Battery Bank
- kWh
→
⚡
Inverter
- kVA
→
🏠
Loads
- kWh/d
Year
Solar Cumulative Cost
Generator Cumulative Cost
Savings / (Loss)
Component
Specification
Recommendation
Method notes
This planner now exposes PVWatts-style assumptions for losses, panel direction, dust and roof area. Use it for early sizing, then confirm roof shade, structure, wiring, protection and utility rules with a certified installer.