What is a Geomagnetic Disturbance (GMD)? A GMD is a disruption of the earth’s magnetic field caused by sunspots. Sunspots are places on the sun where a magnetic dipole field pokes through the sun’s ambient…
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CVR? VVO? VVC? What do these letters stand for and what is all the hype and fanfare about? Conservation Voltage Reduction (CVR) has been around for decades and known by many different terms. It is…
By Steve Conover In recent years, there has been an unprecedented focus on grid-tied renewable energy systems and other distributed generation (DG). With ever-growing concerns about the conservation of natural resources, pollution, dependence on foreign…
By Mike Kline Recently P&D installed a 100 kW DC solar photovoltaic (PV) plant on top of our roof at our Norcross, Georgia headquarters. The array consist of 334 ReneSola America 300 watt solar panels,…