Wondering how much a solar system would cost for your home — and how long it would take to pay for itself? You no longer need to wait for a salesperson to visit or sit through a lengthy consultation. MySolarPrice’s free online solar calculator gives you an instant, personalised solar quote in under 60 seconds — based on your actual electricity usage, property type, and location.
Try the Calculator Now
Enter your monthly electricity usage and get an instant quote — including system size, equipment, total cost, and payback period.
Calculate My Solar Cost →What Information Do You Need?
The calculator asks for just a few simple inputs: 1. Monthly Electricity Bill — Your average monthly Eskom or municipal bill in Rands. If you’re not sure, check your last 3 months of statements and take an average. 2. Average Monthly Usage (kWh) — Your monthly electricity consumption in kilowatt-hours. This is shown on your electricity bill. If you don’t know it, the calculator can estimate it from your bill amount. 3. Coverage Needed — How much solar coverage do you want?
- Load Shedding Only — Backup power during outages only. Most cost-effective option.
- Day Use + Backup — Solar covers daytime usage plus load shedding backup.
- 24/7 Full Coverage — Maximum solar independence from the grid.
4. Property Type — Residential or business. This determines whether you need a single-phase or three-phase inverter. 5. Your City — Location affects how many peak sun hours your panels receive, which impacts system size and output.
What Does the Calculator Output?
Once you submit your details, MySolarPrice’s solar calculator instantly generates a complete system recommendation including: Recommended Equipment
- Inverter model and size (Deye Hybrid)
- Number and type of solar panels (Canadian Solar 450W)
- Battery configuration (Pylontech US5000)
Full Cost Breakdown
- Inverter cost
- Battery cost
- Solar panel cost
- Installation, mounting, cabling and COC
- Total system investment
Financial Analysis
- Estimated monthly electricity saving (Rands)
- Payback period — calculated with 12% annual electricity price escalation
- Total 20-year saving
- Net 20-year benefit after system cost
A full PDF quote is also generated and emailed to you instantly.
How Accurate Is the Calculator?
The MySolarPrice calculator is based on real 2026 equipment pricing and uses the same methodology as professional solar installers. It accounts for:
- Your province’s average peak sun hours (Gauteng 5.5hrs, Western Cape 6hrs, KZN 5.3hrs)
- System efficiency losses (85% system efficiency)
- Battery depth of discharge (80% usable capacity)
- Inverter oversizing factor (20% safety margin)
- 12% annual electricity price escalation for payback calculation
The calculator gives you a realistic ballpark figure — actual quotes from installers may vary by 10–15% depending on your specific roof type, location, and any additional electrical work required.
Sample Calculator Results
Here are some example outputs from the MySolarPrice calculator for a Gauteng home:
| Monthly Usage | Coverage | System Size | Total Cost | Monthly Saving | Payback |
|---|---|---|---|---|---|
| Under 300 kWh | Load Shedding Only | 3kW + 6 panels + 1 battery | R77,200 | R444 | 8.9 years |
| 300–600 kWh | Load Shedding Only | 5kW + 9 panels + 2 batteries | R120,550 | R999 | 7.0 years |
| 600–900 kWh | Load Shedding Only | 8kW + 15 panels + 3 batteries | R173,250 | R1,665 | 6.3 years |
| 900–1200 kWh | Load Shedding Only | 10kW + 18 panels + 4 batteries | R216,600 | R2,331 | 5.8 years |
| 1200+ kWh | Load Shedding Only | 10kW + 23 panels + 5 batteries | R256,850 | R3,108 | 5.3 years |
*Gauteng province. Payback calculated with 12% annual electricity price escalation.
What Happens After I Use the Calculator?
After submitting the calculator form: Step 1 — You receive an instant PDF quote by email with your full system recommendation and cost breakdown. Step 2 — Your quote is shared with certified solar installers in your area who are registered on the MySolarPrice network. Step 3 — Installers contact you with their best price for your specific system. You compare quotes and choose the installer that suits you best. There’s no obligation to proceed, and the service is completely free for homeowners and businesses.
Why Use MySolarPrice Instead of Contacting Installers Directly?
Save time — Instead of contacting multiple installers individually and waiting days for quotes, you get competing quotes from verified installers in your area automatically. Transparent pricing — Our calculator shows you exactly what a system should cost before you speak to any installer — so you can’t be overcharged. Verified installers — All installers on the MySolarPrice network hold valid COC certification and have been vetted by our team. No sales pressure — You control the process. Installers compete for your business, not the other way around.
Calculate Your Solar Cost Now
Ready to find out how much solar would cost for your home or business — and how quickly it would pay for itself?
Join thousands of South Africans who have used MySolarPrice to compare solar quotes and save money.
Calculate My Solar Cost →