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Solar Savings Calculator

Calculate your potential solar savings, recommended system size, and payback period. Get personalized estimates based on your electricity usage.

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System Size Calculator

Find out what size solar system you need based on your monthly electricity usage.

Size My System

Savings Calculator

Calculate how much you could save on electricity with solar power over 25 years.

Calculate Savings

Battery Size Calculator

Determine battery capacity needed for load shedding backup based on your requirements.

Size My Battery

Quick Estimates

Monthly BillRecommended SystemEstimated CostMonthly SavingsPayback
R1,000 - R1,5003kW SystemR45,000 - R70,000R600 - R9005-6 years
R1,500 - R2,5005kW SystemR80,000 - R120,000R900 - R1,5004-5 years
R2,500 - R4,0008kW SystemR120,000 - R180,000R1,500 - R2,5004-5 years
R4,000+10kW+ SystemR150,000 - R250,000R2,500+4-5 years

* Estimates based on average South African conditions. Actual savings depend on system size, usage patterns, and local electricity tariffs.

Why Solar Makes Financial Sense in 2026

Electricity Prices Rising 15%+ Annually

Eskom tariffs have increased over 400% in the past decade. Solar locks in your energy costs and protects against future increases.

4-6 Year Payback Period

With current electricity costs, most solar systems pay for themselves within 4-6 years. Then you get free electricity for 20+ years.

Load Shedding Protection

With batteries, you stay powered during load shedding. No more lost productivity, spoiled food, or security concerns.

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Calculator FAQs

Our calculator provides estimates based on average South African conditions. Actual results vary based on your specific location, roof orientation, shading, and usage patterns. For precise figures, get quotes from multiple installers.
Your monthly electricity bill (kWh usage or Rand amount), roof orientation (north-facing is ideal), and whether you have shading issues. Your Eskom or municipal bill contains your kWh usage.
Payback = System Cost ÷ Annual Savings. We factor in current electricity prices, expected annual tariff increases (typically 10-15%), and system degradation (0.5% per year). Most systems pay back in 4-6 years.

Ready to Get Quotes?

Use our calculations as a starting point, then get accurate quotes from certified installers.