Posts Tagged "battery power"

Solar panels for sunless setting
by NICK ROSEN on AUGUST 12, 2012 - 0 Comments in SOLAR

A hunting lodge in Maine with two small solar panels, some old used car batteries,a quarter mile of wire and careful management. An old-timer explains how he does it in this video.

The old batteries are important – recycled from the owners car once he buys a new one. The Deep cycle batteries which we are told are the right product for this environment, in reality do not hold a charge over the winter when not in use. (more…)

Solar Charge Controllers
by NICK ROSEN on AUGUST 8, 2012 - 6 Comments in OFF-GRID 101

If you have a simple off-grid setup with just one panel or even a few solar panels and several batteries, the other vital ingredient is a charge controller that regulates the power going from the panel to the battery and shuts off power input when the batteries are fully charged.

This makes the process of running your own power station almost maintenance free.

When you are starting up its best to buy a medium-priced controller so that you can add a few panels and batteries to the mix before having to upgrade. The HQRP 20A Solar Panel Battery Charge Controller / Regulator 12V / 24V 20 Amp 300W with PWM Type of Charging retails at under $50 on Amazon.
(more…)

Solar cheaper than grid within 3 years
by AMY SUAREZ on DECEMBER 8, 2011 - 1 Comment in SOLAR

David CraneThe head of one of America’s biggest Utility companies has forecast that it will soon be cheaper to harvest energy from your roof rather than from the grid.

David Crane, the CEO of NRG Energy, is not your typical power company executive, as becomes clear from his interview with a Yale University  student magazine, e360.

NRG is a Fortune 500 company producing electricity for up to 20 million U.S. households. Crane is still neck-deep in hydrocarbons, with more than 90 percent of NRG’s electricity production coming from natural gas, coal, and oil. Crane  believes the electricity market is about to be transformed by the widespread adoption of solar panels on residential and commercial roofs, and electric cars in garages, (more…)


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