About 25% of a home energy bill is from heating water. The eXeL runs that quarter off its own panels rather than off the meter — save as much as 25% on your monthly energy bill.
Technology
eXeL™ Hybrid Solar Water Heater
Leading-edge technology paired with the latest solar materials provides hot water using a fraction of the energy compared to traditional water heaters.
Three components
A tank, an array, and the assembly that joins them.
- 01
A custom designed stainless steel water tank
65 and 105 gallon sizes.
- 02
A dedicated photovoltaic (PV) solar panel array
With racking assembly.
- 03
A patented, low voltage DC heating assembly
Element plus smart controller.
What is missing on purpose
No inverter. No battery. The tank is the battery.
Almost every solar product on the market spends its first move converting DC into AC, and its second storing the result in chemistry it will later have to convert back. The eXeL declines both. Direct current leaves the panels and lands on a resistive element, which is one of the very few loads that genuinely does not care what the waveform looks like.
What is left is a system whose storage medium is a tank of hot water — far cheaper per kilowatt-hour than the electrochemical kind, and already sitting in the house for other reasons. A water heater was always a battery. This one is simply honest about it.
The whole path
- Sunlight
- PV array
- DC
- Heating element
- Hot water
Not in the path
- inverter
- battery
- AC conversion
In a house
A quarter of the bill, taken off the grid.
Low voltage technology allows full functionality in cloudy weather. The element is asking for very little, so the array does not need a bright day to deliver it.
Future-proof your home and increase property value at the same time. The appliance that was a recurring cost becomes part of what the house is worth.
Installation & compliance
Low voltage, ordinary plumbing.
The eXeL uses low voltage circuitry — below 60VDC — and requires minimal plumbing and basic electrical knowledge to install. Professional labor is always recommended so the install meets current codes.
It is a fully standards-compliant product.
For installers & dealers
A line item you can actually carry.
- Offer customers comprehensive services across plumbing, electrical, and solar.
- Get included on bids for new developments looking to offer green tech appliances.
- Faster to install and easier to maintain than complicated heat pump systems.
Questions
Frequently asked.
How do solar water heaters work?
They generally work the same as a standard water heater. What sets the eXeL apart is that it requires very low voltage to heat the water. Strategically placed PV solar panels convert sunlight directly into electricity. Even on cloudy days, the generated electricity is sufficient to power a proprietary electric heating element in the water tank. When the electricity flows through the heating element it generates heat, which is transferred to the water in the tank.
What are the benefits?
Lower your carbon footprint, increase the long-term value of your home, and reduce your monthly energy bill by as much as 25%.
Is it safe and easy to install?
It is a fully standards-compliant product, straightforward to install and designed with user safety in mind. It uses low voltage circuitry (below 60VDC) and requires minimal plumbing and basic electrical knowledge. Professional labor is always recommended.
What maintenance is required?
Very little. The system can be serviced the same way as any other standard natural gas or electric water heater.
How does it compare to solar thermal collectors?
The difference comes down to simplicity and reliability. eXeL uses dedicated PV panels to power a heating element in the tank, just like a standard water heater but on free renewable energy, with no inverters or batteries. Solar thermal collectors heat water directly inside a roof-mounted collector; those systems are often complicated to set up, require a lot of space, and have been known to cause damage from leakage on the roof.
eXeL is one of four products in the stack. The others handle the building and the grid.