Do Humans Need Sunlight To Survive?

The sun is the source of all heat and light energy on Earth. Aside from the obvious benefits of solar energy, and aside from our obvious knowledge that the sun is the source of all food on earth, how much direct or indirect sun does the human body need to survive, if any? We know…
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Will my solar PV system work during a power outage?

There are two reasons that ordinary grid-tied solar will not work during a grid failure. The first is a technical reason and the second is a safety and regulatory issue. First and foremost is the technical reason. The electronics that control a solar system constantly adjust voltage and current to keep the panels operating efficiently…
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How To Prepare For Power Outages.

PG&E is sending out notices warning that in the event of summer heat-wind events posing an extreme #wildfire danger, it will shut down electrical power in certain regions. We predict that California will be facing multiple, prolonged power outages during the annual fire season. More than likely, forced outages will become the standard in other…
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