We compare upfront costs, running costs and payback periods for SA households.
By Willem Steyn · Last updated August 2026
| Solar geyser | Electric geyser | |
|---|---|---|
| Upfront cost | R18 000???R35 000 | R7 000???R15 000 |
| Monthly running cost | Very low | Highest single consumer in most homes |
| Lifespan | 15???20 years | 8???12 years |
Prices vary by brand, installer and region ??? always get multiple quotes.
Typically 40???60% of water heating costs.
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