SolRand exists because payback quotes were all over the place.
Two quotes for the same roof can differ by R60,000 and five claimed years of payback, and both can be built from real prices. They differ in the assumptions buried under the headline.
R0What the calculator costs. No sign-up, no installer commission, nothing sold.
100%Of the calculation runs in your browser. Your bill never leaves your device.
2026-10-26When the price and tariff data on this site was last checked against sources.
How a number gets onto this site
1
Source first
Tariffs come from NERSA and Eskom decisions. Prices come from public installer quotes and published kit pricing.
2
Range, not a point
Where quotes disagree, the site publishes the range and dates it. A single confident figure would be easier to read and less honest.
3
You can override it
Every assumption sits in the calculator as an input. Disagree with the tariff rise? Change it and watch the payback move.
SolRand is not an installer and does not arrange quotes. Take the range to two installers and make them beat it line by line.