We’ve found many systems are delivering only 50 percent of their rated capacity into the indoor conditioned space. Combine poor installation and service-related issues with inconsistent maintenance practices or, even worse, a run-to-fail scenario, and we find that many systems operate far below the manufacturer’s Air-Conditioning, Heating, and Refrigeration Institute (AHRI) laboratory rated efficiency.
The U.S. solar energy industry installed a record 1,855 megawatts (MW) of photovoltaic (PV) capacity in 2011, more than doubling the previous annual record of 887 MW set in 2010, according to the latest U.S. Solar Market Insight report.
The Canadian GeoExchange Coalition (CGC), Canada’s national industry association for geothermal heat pump technology, has announced the release of a statistical report entitled “The State of the Canadian Geothermal Heat Pump Industry 2011 - Industry Survey and Market Analysis.”