Serving Hawaii since 1993
Decades of local energy experience across changing utility programs, technologies, and customer needs.
Solar Water Heating
Alternate Energy Hawaii
Years of experience
Alternate Energy
Solar Water Heating
In Hawaii, up to 40% of the average family’s electric bill goes toward heating water.
01
Cut water heater energy costs by 50-80%.
02
Utilize free energy from the sun to reduce the effect of utility rate increases.
03
Claim up to 65% of your solar water heating system costs by utilizing State of Hawaii and federal tax credits.
04
Receive a one-time Solar Rebate from the Hawaii Energy Program for solar water heaters installed on existing homes.
05
Take advantage of low interest and zero interest loans through the our partnerships with local, reputable financial institutions.
06
Protect the environment by using clean, renewable energy.
Efficient. Sustainable.
Benefits of Alternate Energy, Inc’s Solar Water Heating Systems
Alternate Energy’s residential solar water heating systems are designed to provide the best combination of value, reliability, and trouble-free service. In order to maximize the lifespan of your system, we include the following features:
Service warranties:
How Solar Water Heating
Systems Work
Solar collectors, or panels, on the roof of your home are connected through a series of pipes to a solar water tank. Water pressure forces the cool water in your tank up these pipes and into the solar collectors. The collectors trap the sun’s heat and transfer it to the water inside the tank.
When the water gets hot enough from the sun, the circulation pump transfers it back into the storage tank where it rises to the top of unit. The cool water, which remains near the bottom of the unit, is pumped to the solar collectors, completing the solar heating cycle.
The circulation pump will continue to run as long as the sun is up. In times of poor weather and heavy use, a timer-controlled, back-up heating element located in the solar water tank will ensure you have hot water.
Trusted & Certified
Our Accreditations and Industry Partnerships
Why Hawaii Homeowners Trust AEI
Local Solar, Battery, and Energy Expertise
Thousands of solar projects completed
AEI brings practical installation knowledge to solar PV, battery storage, and long-term energy planning.
Local installation teams
Local crews understand island conditions, roof readiness, permitting, and utility coordination.
Solar + battery expertise
AEI helps customers evaluate solar production, backup power priorities, and battery storage options together.
Licensed Hawaii contractor
AEI operates as a licensed Hawaii contractor and reinforces project planning with local accountability.
Local support and service
After installation, AEI helps customers with monitoring questions, maintenance direction, and future upgrades.