Solar Water Heater Requirements
Specifications for qualified equipment and installation
Two types of systems are eligible for the Solar Water Heater Rebate:
Active Solar Water Heaters
Active systems use a pump to circulate water between a storage tank and a collector array. The water heater attached to the solar collector system must be powered by electricity or natural gas supplied by GRU. Active Solar Systems must be closed-loop type.
Passive Solar Water Heaters
Passive systems employ naturally induced currents or pressure from the attached water system to move water through the collector plate. Passive systems must be double-glazed integrated collector storage type.
Additionally, all systems must meet these equipment and installation specifications:
- Solar system must have current Florida Solar Energy Center (FSEC) approval
- All systems must be guaranteed against freeze damage
- Unless otherwise approved by GRU, collectors must be oriented to face within 45 degrees of due south
- Unless otherwise approved by GRU, collectors must be tilted between 15 and 40 degrees of horizontal
- Collectors oriented east, west or flat mounted must be correctly sized using a correction factor formula. Pre-installation approval by GRU will be required to verify that the collector has the necessary solar window
- A minimum 80-percent solar window evidenced by a valid Solar Pathfinder report will be required
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