Smart. Solar Ready.
Reimagine Hot Water
Lower energy bills
Lower energy bills
App control
App control
Reduced emissions
Reduced emissions
Units in the Field
Units in the Field
Customer Money Saved
Customer Money Saved
Clean Energy Generated
Clean Energy Generated
Trusted by
WHAT WE DO
Smart, Affordable Hot Water for Every Home
Reliable
Solar-Ready
Sustainable
Connected
Efficient
Future-Focused
Easy to Install
Cost-Saving
Trusted
We help South Africans save money, avoid surprise geyser failures, and
keep hot water flowing.
Your geyser is likely your home's biggest energy drain.
Elon Smart Water puts you in control.
Use solar power when it's available. Monitor your usage in real time. Get alerted to faults before they cost you. It's reliable hot water that adapts to how you live — and cuts what you pay.
Whether it's one home or an entire development, the return is immediate: lower running costs, fewer emergencies, and a system that earns its keep.
Hot water that works harder for you.
WHAT WE DO
Smart, Affordable Hot Water for Every Home
Reliable
Solar-Ready
Sustainable
Connected
Efficient
Future-Focused
Easy to Install
Cost-Saving
Trusted
We help South Africans save money, avoid surprise geyser failures, and
keep hot water flowing.
Your geyser is likely your home's biggest energy drain.
Elon Smart Water puts you in control.
Use solar power when it's available. Monitor your usage in real time. Get alerted to faults before they cost you. It's reliable hot water that adapts to how you live — and cuts what you pay.
Whether it's one home or an entire development, the return is immediate: lower running costs, fewer emergencies, and a system that earns its keep.
Hot water that works harder for you.
WHAT WE DO
Smart, Affordable Hot Water for Every Home
Reliable
Solar-Ready
Sustainable
Connected
Efficient
Future-Focused
Easy to Install
Cost-Saving
Trusted
We help South Africans save money, avoid surprise geyser failures, and
keep hot water flowing.
Your geyser is likely your home's biggest energy drain.
Elon Smart Water puts you in control.
Use solar power when it's available. Monitor your usage in real time. Get alerted to faults before they cost you. It's reliable hot water that adapts to how you live — and cuts what you pay.
Whether it's one home or an entire development, the return is immediate: lower running costs, fewer emergencies, and a system that earns its keep.
Hot water that works harder for you.
Smart Hot Water. Real Savings.
Cut your electricity bill by up to 50% with a solar-ready system that upgrades your existing geyser. See your savings in real time — and get early alerts before small issues become big expenses.
Smart Hot Water. Real Savings.
Cut your electricity bill by up to 50% with a solar-ready system that upgrades your existing geyser. See your savings in real time — and get early alerts before small issues become big expenses.
Build for the Future. Reduce Operating Costs.
Meet SANS 10400-XA requirements while lowering tenant energy bills and improving long-term building performance. Connected monitoring reduces maintenance and boosts tenant satisfaction
Build for the Future. Reduce Operating Costs.
Meet SANS 10400-XA requirements while lowering tenant energy bills and improving long-term building performance. Connected monitoring reduces maintenance and boosts tenant satisfaction
Easy to Install. Trusted in the Field.
Elon systems are fast to fit, compliant, and designed to minimise call-backs. With direct-PV heating and strong technical support, you deliver more value with less complexity.
Easy to Install. Trusted in the Field.
Elon systems are fast to fit, compliant, and designed to minimise call-backs. With direct-PV heating and strong technical support, you deliver more value with less complexity.
Reduce Claims with Proactive Intelligence.
70% of homeowner claims are geyser failures. Elon Smart detects leaks, corrosion, and abnormal usage early — helping insurers intervene before costly damage occurs.
Reduce Claims with Proactive Intelligence.
70% of homeowner claims are geyser failures. Elon Smart detects leaks, corrosion, and abnormal usage early — helping insurers intervene before costly damage occurs.
WHY WE DO WHAT WE DO
Smarter Energy Starts With Understanding the Problem
Hot water is one of the biggest hidden costs in South African homes and developments. It drives high electricity bills, causes most insurance claims, and remains a critical part of future-proofing buildings for solar adoption. These three insights break down the biggest challenges — and how the right system solves them.
Hot Water Is Draining Your Electricity Budget
Water heating can account for up to 40% of a home’s monthly electricity usage — and tariffs continue to rise every year. Solar-PV ready systems like Elon dramatically reduce these costs without replacing your geyser.
Hot Water Is Draining Your Electricity Budget
Water heating can account for up to 40% of a home’s monthly electricity usage — and tariffs continue to rise every year. Solar-PV ready systems like Elon dramatically reduce these costs without replacing your geyser.
70% of Home Insurance Claims Begin in the Ceiling
Leaks, corrosion, and burst geysers cause huge damage and disruption. Elon Smart uses real-time monitoring and early detection to prevent problems before they become expensive failures.
70% of Home Insurance Claims Begin in the Ceiling
Leaks, corrosion, and burst geysers cause huge damage and disruption. Elon Smart uses real-time monitoring and early detection to prevent problems before they become expensive failures.
Which Water Heating System Should You Install in 2026?
New building standards require cleaner, more efficient hot-water systems. Solar-PV heating is now the simplest, most scalable way to meet regulations, cut tenant costs, and reduce strain on the grid.
Which Water Heating System Should You Install in 2026?
New building standards require cleaner, more efficient hot-water systems. Solar-PV heating is now the simplest, most scalable way to meet regulations, cut tenant costs, and reduce strain on the grid.
Property Compliance & Energy Resilience Matter
New building standards require cleaner, more efficient hot-water systems. Solar-PV heating is now the simplest, most scalable way to meet regulations, cut tenant costs, and reduce strain on the grid.
Property Compliance & Energy Resilience Matter
New building standards require cleaner, more efficient hot-water systems. Solar-PV heating is now the simplest, most scalable way to meet regulations, cut tenant costs, and reduce strain on the grid.
OUR PARTNERS
Trusted by Industry Leaders
Proudly partnered with South Africa’s most recognised brands in energy, appliances, insurance, and property development.
Kwikot Haier
Kwikot Haier
Standard Bank
Standard Bank
SA Institute of Architects
SA Institute of Architects
REAL-WORLD RESULTS
Real Data. Real Homes. Real Savings.
Nine Months Monitored, 73% Solar — The Longest-Running Dataset in the Series
The smallest system in the series, the longest monitoring period, and still a 73% solar fraction. This is the proof point for budget-conscious households: even a modest 1.6 kWp array pays for itself and keeps delivering.
📍 Location
Roodepoort, Gauteng
👥 Household Size
3 people (couple + primary school-age child)
🔋 Solar Contribution
73%
⚡ Solar-PV Array Size
⚡ Solar-PV Array Size
🗓️ Month & Year
September 2024 – June 2025 (9 months)
⚡ Total Energy Used for Water Heating
112 kWh/month
Nine Months Monitored, 73% Solar — The Longest-Running Dataset in the Series
The smallest system in the series, the longest monitoring period, and still a 73% solar fraction. This is the proof point for budget-conscious households: even a modest 1.6 kWp array pays for itself and keeps delivering.
📍 Location
Roodepoort, Gauteng
👥 Household Size
3 people (couple + primary school-age child)
🔋 Solar Contribution
73%
⚡ Solar-PV Array Size
⚡ Solar-PV Array Size
🗓️ Month & Year
September 2024 – June 2025 (9 months)
⚡ Total Energy Used for Water Heating
112 kWh/month
Nine Months Monitored, 73% Solar — The Longest-Running Dataset in the Series
The smallest system in the series, the longest monitoring period, and still a 73% solar fraction. This is the proof point for budget-conscious households: even a modest 1.6 kWp array pays for itself and keeps delivering.
📍 Location
Roodepoort, Gauteng
👥 Household Size
3 people (couple + primary school-age child)
🔋 Solar Contribution
73%
⚡ Solar-PV Array Size
1.6 kWp
🗓️ Month & Year
September 2024 – June 2025 (9 months)
⚡ Total Energy Used for Water Heating
112 kWh/month
OUR BLOG
Our latest insights
One Shower Costs You R10.00. You're Taking 1,460 of Them This Year
That's it. That's the number. One eight-minute shower in 2026 costs a South African household roughly R10.00 — water and electricity combined. Doesn't sound like much. Keep reading
Hot Water Costs & Savings
Mar 11, 2026
Solar PV vs Solar Thermal vs Heat Pumps for Water Heating: Which Is Best in 2026?
Water heating is the single biggest energy consumer in South African households, accounting for 40% of total household energy use (ref). That makes it an obvious target for cutting your electricity bill.
Maintenance, Reliability & Warrantys
Jan 18, 2026
TESTIMONIALS
Customer Testimonials
Very happy with my Elon system. Saved me a fortune.
Steven Johnson
Since installing the Elon Smart in my house in Voëlklip, Hermanus, my electricity units per month went from 1610 units to 205 units from 12 December to 15 January, exceeding my expectations hugely. Can honestly recommend the Elon Smart system 100%. Massive saving on my electricity bill. The app super easy to navigate and very user friendly.
Rhonette Fick
Since installing the Elon Smart in my house in Voëlklip, Hermanus, my electricity units per month went from 1610 units to 205 units from 12 December to 15 January, exceeding my expectations hugely. Can honestly recommend the Elon Smart system 100%. Massive saving on my electricity bill. The app super easy to navigate and very user friendly.
Rhonette Fick
4 years and still the best free hot water i have ever had. My house in Dullstroom has never not had hot water since we installed the Elon 100 in my house. The house is totally off grid and we aim to keep it that way. Thanks #Poweroptimal for your amazing product. Anthony
Anthony McHenry
The Elon Smart itself is quite a revolutionary product and has slashed my electricity bill while improving the amount of time I have hot water
Muhammad Rajah
We are using the Elon100 since September 2019 without any problem. We actually changed from Geyzerwise to Elon100 and happy ever after.
Michiel De Kock
We are using the Elon100 since September 2019 without any problem. We actually changed from Geyzerwise to Elon100 and happy ever after.
Michiel De Kock
Elon Smart Hot Water works like a bomb. Haven’t used main power since installation. But .,,, it’s been summer. Hopefully winter works just as well. Did install an extra panel so have 3 panels
Lorraine Stewart
FAQs
Got questions?
We’re here to make Elon Smart easy to understand. Find answers to the most common questions below.
Still got questions?
Product & Technology
Costs & Compliance
Installation & Warranty
It’s the only solution that retrofits standard electric geysers and is solar PV-ready—combining smart thermostat control, connected monitoring and seamless solar integration.
Yes — if you have a compatible geyser (for example from your preferred brand), your electrician can replace the thermostat with the Elon smart unit and convert it into a smart, solar-ready heater.
The Elon 100 is a solar-PV water-heater kit. The Smart Water solution is a next-generation smart thermostat platform that turns standard geysers into connected, solar-ready devices.
The size depends on your hot-water usage, location and array size; as a guide we recommend a minimum of around 1 kWp of solar PV for the retrofit system.
If there is sun the system can heat with solar; if there’s no grid and no solar it will pause heating. During load-shedding you still benefit whenever solar is available.
FAQs
Got questions?
We’re here to make Elon Smart easy to understand. Find answers to the most common questions below.
Product & Technology
Costs & Compliance
Installation & Warranty
It’s the only solution that retrofits standard electric geysers and is solar PV-ready—combining smart thermostat control, connected monitoring and seamless solar integration.
Yes — if you have a compatible geyser (for example from your preferred brand), your electrician can replace the thermostat with the Elon smart unit and convert it into a smart, solar-ready heater.
The Elon 100 is a solar-PV water-heater kit. The Smart Water solution is a next-generation smart thermostat platform that turns standard geysers into connected, solar-ready devices.
The size depends on your hot-water usage, location and array size; as a guide we recommend a minimum of around 1 kWp of solar PV for the retrofit system.
If there is sun the system can heat with solar; if there’s no grid and no solar it will pause heating. During load-shedding you still benefit whenever solar is available.
Still got questions?
FAQs
Got questions?
We’re here to make Elon Smart easy to understand. Find answers to the most common questions below.
Product & Technology
Costs & Compliance
Installation & Warranty
It’s the only solution that retrofits standard electric geysers and is solar PV-ready—combining smart thermostat control, connected monitoring and seamless solar integration.
Yes — if you have a compatible geyser (for example from your preferred brand), your electrician can replace the thermostat with the Elon smart unit and convert it into a smart, solar-ready heater.
The Elon 100 is a solar-PV water-heater kit. The Smart Water solution is a next-generation smart thermostat platform that turns standard geysers into connected, solar-ready devices.
The size depends on your hot-water usage, location and array size; as a guide we recommend a minimum of around 1 kWp of solar PV for the retrofit system.
If there is sun the system can heat with solar; if there’s no grid and no solar it will pause heating. During load-shedding you still benefit whenever solar is available.
