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Net-Positive Solar Thermal Installation Shows Potential

There is an ongoing debate over the proliferation of solar thermal technology as opposed to its photovoltaic cousin. As you may already know, critics of solar thermal have been playing its funeral dirge for years now. Yet the technology still continues to evolve and thrive as evidenced by a project recently profiled by HuffPost Canada, a project that shows the potential of innovative solar thermal designs.

The installation was designed for a combined garage-residential suite in Calgary, Alberta. Homeowner Tom Jackson wanted to convert his rather sizable garage into a dual-space unit that offered him workspace along with a residential suite he could rent out. At the start of the design phase, he was determined to use solar technologies to create a net-positive structure. He succeeded.

SunQuest 250

PV Alone Was Not Enough

Jackson’s original concept called for a PV installation that would generate all the electricity needed by the suite. But that strategy proved insufficient for creating a non-positive structure. There was still the pesky issue of space heat and hot water, a major source of energy consumption. Since, Canadian homes devote as much as 70% of their total energy usage to heating, PV alone was just not going to cut it.

Jackson decided on a solar thermal installation that would provide all the space heat and hot water needs. He integrated the system with electrically-powered heat pumps that could keep the system’s thermal liquid at the optimal temperature without sacrificing heating potential.

Spectacular Results Achieved

So how did it work? Quite well. In fact, on most days the system generates more than enough heat to keep the space warm. Plenty of hot water is always available too. Any extra heat is transferred to the main house as supplemental heat. Jackson estimates that his investment in both systems will be completely paid off within 20 years.

Amazingly, Jackson’s installation has eliminated the need for natural gas. The combination of a state-of-the-art solar thermal system, extra insulation, a metal roof, and triple-pane windows has made his garage suite the envy of the neighborhood. His combined systems do so well that he generates more energy than he can use during the summer months. During the winter, the entire garage suite is heated entirely by solar thermal with enough excess heat to supplement the main home.

Solar Thermal Right Solution

While Solar America Solutions has not historically focused on residential installations, we have developed and are in the process of introducing, a very viable residential package that the average plumber or “do-it-yourselfer” can install. For that reason, we thought it important to talk about this Calgary installation because it demonstrates that solar thermal is the right solution for space heat and hot watereven in residential applications. It cannot be argued that, from the standpoint of ROI, carbon emission reduction, and long-term durability, solar thermal is far superior to photovoltaic.

Average estimates suggest that solar thermal can provide up to 70% of a structure’s space heat and hot water under normal conditions. Under optimal conditions, the amount could be even more. That makes solar thermal the right solution for your commercial building, and even for your home.

If you are looking to save on space heat and hot water, there is no better alternative than solar thermal. Furthermore, there is no better solar thermal provider than Solar America Solutions. We are an industry leader offering customers the patented SunQuest 250™ solar thermal collector panel capable of developing up to 35,000 BTUs per hour and output temperatures as high as 500° F.

When you choose a Solar America Solutions installation, you are choosing a system that can pay for itself in five years or less. You are choosing a system based on a proven evacuated tube solar collector panel that relies on ultraviolet rays to generate heat energy. You are choosing a system that requires just 21 square feet of installation space per collector panel.

Sources:

HuffPost Canada – http://www.huffingtonpost.ca/david-dodge/solar-thermal-101_b_16986626.html

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