☀️ Solar Calculator

Solar System Sizer
for Africa

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

⚙️ 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 Load 0 Wh
Peak Power Demand 0 W
System with 25% Buffer 0 Wh
AI Solar Calculator Advisor Optional AI · provider required
Optional AI help can explain solar terms after you consent to sending your question. The calculator itself stays local.
Solar quote check

Validate the system plan before requesting quotes

Turn appliance load, country yield, battery target, inverter headroom, and generator comparison into a solar plan you can copy or download.

Reviewed 2026

Local-first estimate. No live quote or official approval is performed.

What to check

  • Methodology: calculate daily Wh, peak load, panel capacity, battery capacity, inverter size, estimated cost, and generator comparison from visible assumptions.
  • Verify roof space, shading, panel wattage, battery chemistry, inverter surge rating, installer credentials, warranty, wiring, earthing, and local tariff or fuel prices.
  • Use the copy/CSV actions to send the same assumptions to installers and compare quotes fairly.

Limitations

  • Disclaimer: planning estimate only, not an installer quote, financing offer, utility approval, electrical certificate, warranty, or guaranteed payback.
  • Solar yield, battery health, exchange rates, equipment prices, fuel prices, and tariffs change by location and time.
  • Source/reference note: verify against current PVWatts/NREL-style yield guidance, manufacturer datasheets, local utility tariffs, fuel prices, and installer advice.
Review result panel

Privacy note: the calculator runs in your browser. Do not paste account numbers, installer contracts, or private customer data into notes you plan to share.