Repayment calculator
Could the money you already spend on electricity help pay for your own solar system?
This calculator is an educational illustration, not a sizing tool. It shows how the figures could relate to one another — your real numbers come out of a proper assessment.
Solar repayment calculator
Enter a few basic figures to see how the numbers could work for you.
System price less deposit.
Months.
This is an assumption used for illustration and is not a prediction of future electricity tariffs.
A monthly bill on its own cannot tell us what a system would actually produce. This is an assumption so the illustration can be calculated — your real figure comes out of a proper assessment.
Current electricity cost
R 8 000/month
Estimated solar finance payment
R 4 093/month
Over 60 months at 12% per year.
Estimated remaining grid electricity cost
R 2 400/month
Based on the assumed share above.
Estimated monthly difference
R 1 507/month
Illustrative difference between what you pay now and the combined solar and grid cost.
Estimated break-even period
About 1 months
Projected electricity cost in 5 years
R 13 512/month
If electricity prices increased by the assumed rate.
Projected electricity cost in 10 years
R 26 016/month
If electricity prices increased by the assumed rate.
Estimated cumulative electricity cost over 5 years
R 634 570
Without solar, on the assumed escalation.
Estimated cumulative electricity cost over 10 years
R 1 856 380
Without solar, on the assumed escalation.
Estimated long-term value of electricity produced
R 6 116 875
Illustrative value of electricity displaced over 20 years. Not a guaranteed return.
Calculator estimates are for illustration purposes only and are not a quotation, financial advice or guarantee of savings. Actual results depend on electricity consumption, tariffs, system design, equipment, solar production, installation costs, financing terms, weather, maintenance and other factors. A final recommendation requires an assessment of your electricity usage and property.
PRO SOLAR INSTALLER does not provide finance or instalment plans. This calculator is a tool to help you understand the investment of a solar system. For finance options, please consult your financial service provider or chosen financing institution.
Want the real numbers for your property?
Send your latest electricity account and we'll work through your actual usage, an appropriate system size and what it could realistically produce.
Illustration
Same monthly expense. Different long-term outcome.
A simple illustration of two paths for the same monthly electricity expenditure.
Without solar
R8 000
per month on electricity today
- 1You pay your electricity account every month.
- 2Tariffs are adjusted upward over time.
- 3The amount you pay tends to rise.
- 4The money is spent permanently — nothing is owned at the end.
With solar
R8 000
the same monthly energy expenditure
- 1Your monthly energy expenditure is split between solar finance and any remaining grid costs.
- 2The finance term runs for a fixed period.
- 3At the end of the term, the system is paid off.
- 4You own the equipment, and it keeps producing electricity.
The R8 000 figure is illustrative only. Actual numbers vary from property to property and depend on consumption, tariffs, system price and finance terms.
Your solar system can keep producing after it is paid off
Electricity payments carry on for as long as you buy electricity. Finance repayments end. Once a system is paid off, it is equipment you own that continues to produce electricity, subject to normal maintenance and equipment life.
Purchase options
Ways to pay for your system
Cash
Pay for the system upfront and own it from day one.
Finance
Spread the cost over a repayment term. Finance is subject to approval and to the terms and conditions of the finance provider.
Part deposit plus finance
Put down a deposit and finance the balance to reduce the monthly repayment.
We cannot approve finance and we make no representation that any application will be approved. Any finance application is assessed by the finance provider on its own criteria.
Ready to see what solar could look like for you?
Send us your details or latest electricity bill and we'll help you understand what solar could look like for your property.
Reviews
See what our customers say
These reviews are published word for word as our customers left them on our Google Business profile, where we cannot edit them.
Excellent service from start to finish. The solar installation was completed professionaly, on time, and to a very high standard. I am very happy with the quality of the workmanship and would highly recommend there services to anyone looking for reliable solar solutions.
We have done 4 different installations with Deist Solar. Excellent advice and service. Listen to your requests and give the best option
Hey, what can I say.... Great service, products and knowledge in solar field! Thank you Karel, will definitely recommend.
Excellent knowledge and after installation support
Beste diens oom karel help met enige solar system wat jou moeilikheid gee
Review left in Afrikaans