Solar Water Heating

Slash your water heating costs by up to R13,000 per year

💸 Save R7,000 to R13,000 each year, based on current South African tariffs.

🛠️ Maintenance free, no pumps, no glycol, just PV panels and a standard element.

🌍 Cut over 2 tonnes of CO₂ each year, feel good while you save.

🛡️ Future proof against rising Eskom prices, use free sunshine for hot water.

Typical Eastern Cape household example. Savings vary with tariff and usage.

Headline numbers at a glance

3015 kWhAnnual PV output from a 3 panel set in EC climate

90 to 100%Share of geyser load typically covered by PV

R2.20 to R4.40Typical tariff per kWh, May 2025 block 1 range

R7k to R13kAnnual saving for most homes

Sources, PVWatts for Gqeberha, measured South African geyser use of 6 to 8 kWh per day for a family of four.

What you can save each year

Annual tariff, R per kWh	PV energy used, kWh	Rand saved per year
R2.20	2700	R5,940
R2.67	2800	R7,476
R3.91	2900	R11,339
R4.50	3015	R13,568

Assumes midday heating schedule and a standard element. Figures exclude fixed monthly connection charges.

How it works

Your geyser acts as a thermal battery. A simple timer or smart relay heats water during the solar peak, usually a 10 to 15 hour window across the day. You use free PV energy first, only a small seasonal mismatch is left to the grid. There are no moving parts, nothing to bleed or top up.

Price my home

Extra benefits

✔️ Zero hassle, maintenance free for years.

✔️ Reliable hot water, even during load shedding with correct schedule.

✔️ Cleaner footprint, about 2.7 tonnes of CO₂ avoided each year.

✔️ Fast payback, savings start on day one.

Key takeaway. With three 600 W panels and a midday heating schedule, most Eastern Cape households cut roughly nine out of ten rand now spent on water heating. Typical saving is about R8,000 per year, higher at premium tariffs.

Common questions

Will it work with my existing Kwikot geyser?

Yes. The kit runs a standard element in your existing tank. No special solar geyser is required.

Do I need pumps or glycol?

No. This is PV direct to element with a timer, so there are no pumps or heat transfer fluids to service.

What about winter and cloudy days?

The timer can top up from the grid if needed. Most of the year PV covers the bulk of the load, so you still save strongly.

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