In December 2019, SunDrum Solar and Freedom Solar commissioned a 10.7kW hybrid solar PV-T system on an Accessory Dwelling Unit (ADU) being built by Acton ADU in San Jose, CA. The solar system supplies 100% of the electrical, space heating, space cooling, and DHW for the entire home. The system includes 670 sq. ft. of Insol Corp Infinite R 23C phase change material installed in the ceilings, which serves as thermal storage for the space heating and cooling.
In 2019, SunDrum Solar commissioned a 1,300-collector hybrid solar PV-T Campus at Naval Station Great Lakes in North Chicago Illinois. The systems provide hot water to dormitories and base laundry. The commissioning phase included demonstrating winter performance where the systems were exposed to (-28F) temperatures. The systems have provided over 4000 therms of energy during a cold winter month while providing over 5500 therms of energy during a summer month. The thermal systems include 6 dormitory systems and one additional system supporting the base laundry.
The Elks Lodge in Palo Alto CA decided to retrofit their 1000+ panel 362kW Canopy PV array with 120 SunDrum® Solar SDM100-300 collectors (78kWth) to heat their 3300 ft2 pool. The system goal was to eliminate natural gas consumption except for 8 weeks in the winter.
In February 2019, SunDrum Solar commissioned a 40-collector hybrid solar PV-T system at Wailea Inn on the island of Maui, HI. This system now serves as the main source of heat for their DHW and their pool, and is configured such that space heating and A/C can be added easily in the future. The warm, sunny climate in the town of Kihei enables this system to run at excellent COP’s year round, and to provide a substantial portion of their heating load directly from the sun.
In 2016, Mirasol FAFCO Solar installed a CoolPV® system on a Florida residence owned by Jerry Pollard. Pollard’s system is comprised of 40 275 Watt CoolPV panels.
Even at the high latitude of Anchorage, AK, more than 60 degrees north of the equator, solar hot water systems are an effective form of energy. On the winter solstice, Anchorage receives about six and a half hours of daylight, while six months later on summer solstice, the sun shines for 21 straight hours. When designed correctly, solar hot water systems can be convenient and economical, even in Anchorage.
Synthesis Construction removed an old flat-plate solar hot water system and installed a new Apricus evacuated-tube solar hot water system. This system involves 16 ETC-30 evacuated-tube collectors, a SolarHot pump station with built-in brazed-plate heat exchanger, and an 800 gallon Niles Steel storage tank.
In California’s hot Central Valley, a hotel installed a hybrid photovoltaic and solar-thermal system, which involves 42 hybrid PV/Thermal collectors, and 18 additional PV-only panels. Each hybrid collector consists of a PV panel on the front and a solar-thermal collector affixed to the back. The PV panels get energy from direct sunlight. The thermal collectors get heat from the PV panels and from the ambient air.
Working towards the goal of fully sustainable producti on, Cargill worked to have one of California’s largest solar water heating arrays installed on its flagship beef production facility in the state.
In August 2017, Wheaton College installed a solar hot water system on the roof of its Haas Athletic Center.