In March, Gaston Electrical Co. Inc. installed a 175.8-kilowatt (kW) rooftop photovoltaic (PV) solar-power system on the roof of its headquarters in Norwood, Mass. The system eliminates 55 tons of carbon dioxide emissions from the atmosphere, according to a press release.
With energy crises and climate change getting top billing in mainstream media, the green building movement is in full string and not going away anytime soon. Solar photovoltaic (PV) systems and electric vehicle (EV) charging are significant markets for contractors to keep an eye on.
The 2017 National Electrical Code (NEC) will feature the new Article 691, which covers nonutility company, large-scale photovoltaic (PV) electric supply stations with generating capacities of at least 5,000 kilowatts (kW).
While most media coverage of solar power has focused on the industry’s steady growth, not all reports are rosy. According to the online electrical industry news source, Utility Dive, solar’s bright fortunes could be taking a slight dip on the horizon.
Solar photovoltaic (PV) panels have an impressive lifespan. Manufacturers often estimate it at 25 years, though many units installed in the 1980s are still going strong today. At some point, though, even the hardiest of these panels will fail.
In a state blessed by an abundance of sun, one might expect the solar industry to bask in unmitigated regulatory support. But Arizona is not California, and the state’s homegrown controversy over rooftop solar has cast a dark cloud over the future of the market there.
In the widening embrace of renewable energy, cities have become a catalyst. For example, San Francisco recently approved an ordinance requiring solar panels on all new residential and commercial buildings constructed in the city beginning in January 2017.
Energy consumer demand for distributed-energy resources (DER) is growing for a number of reasons—unexpected utility power outages, planned rolling blackouts, power quality problems, increases in power costs, etc.
A while back, I wrote about a house with 14 kilowatts (kW) of solar panels installed on the southern exposure roof. Voltage and current monitoring at the breaker panel prior to the solar panel installation had shown 10–12-volt (V) deep sags occurring as frequently as every 22 minutes.
In the drama surrounding the growth of sustainable technology, a few companies have found themselves occupying a large space on center stage. Recently, two of those companies shined the spotlights on their space with the prospects of a merger.
On June 28th, Facebook launched Aquila, a high-altitude, unmanned solar-powered airplane, for its first flight at Yuma Proving Ground in Yuma, Ariz.
Although the team has been running tests and practice flights for months, until this point, only a 1/5th scale airplane had been tested.
Bertrand Piccard landed in Abu Dhabi on July 25th at 8:05 p.m. EDT (Easter Daylight Savings Time) after completing a two-day solo flight in the airplane, Solar Impulse 2 (SI2), an aircraft powered 100 percent by solar power.
The need to modernize the nation’s outdated electrical infrastructure has become something of an axiom in the age of renewables. Recognizing that need, the U.S. Department of Energy (DOE) has offered an incentive.