There are two major components to a solar hot water system. The first is the solar collector. It is installed on a roof facing the sun. Running through the collectors are copper tubing, filled with water that absorbs energy from the sun during the day.
The second main element is the water tank which gathers and stores the hot water that flows in from the solar hot water panels.
The water in the solar collectors, heated from the sun, flows through piping and circulates into the tank, which ends up heating the water already collected from before.
Hot water is now available which can be piped for use in showers, sinks and appliances.
The heating system is backed-up by electrical or gas so there will always be hot water, even on cloudy days.
The great thing about living in Hawaii is our year round sunshine which means the back up systems are used only sparingly.
Currently, the federal government provides a 30% tax credit on photovoltaic and hot water systems. The state of Hawaii gives a 35% tax credit. Combined, these incentives can take care of roughly two-thirds the cost of the system.
Haleakala Solar will guide you step by step on how to capitalize on these generous (and limited-time) programs.
A solar hot water system can be paid off in 2-3 years and over the long haul, savings can be quite substantial. Also, by using this clean, renewable resource, your company would be part of the movement away from dirty, fossil fuels and towards energy independence and sustainability.