So instead of providing an answer, please help me by showing me how you got your result. I have a 12v device that consumes 1W in idle mode, and 5W in active mode. How many "amp hours" am I looking at over a 24 hour period (always on). I am looking specifically for amp hours... I don't understand the relation between amps and amp hours yet.
posted by squirbel on Apr 23, 2013 - 14 answers

I need a primer on how (electrical) power works. [more inside]
posted by asnowballschance on Aug 24, 2012 - 6 answers

Home energy advances. Are there any new developments I should know about as I'm about to move into an older single-family home after 13 years of living in an apartment? It is a gas/electric home with heavy tree shade.
posted by usermac on Jul 13, 2012 - 6 answers

Assuming an island with its own supply of power via generator and/or solar power, how much electricity is consumed to turn N liters of sea water into potable drinking water? [more inside]
posted by thewalrus on Jul 27, 2011 - 11 answers

I want to install solar panels when I replace my roof next summer. What do I need to know about manufacturers, incentives, and costs? I am in Washington state. [more inside]
posted by bq on Dec 14, 2010 - 10 answers

Working on DIY solar charger from modified garden power lamps. Of course the panels look different than the ones in the pictures! [more inside]
posted by aetg on Feb 17, 2008 - 6 answers

Anyone know a simple and cheap solar panel setup to run a small boombox about 9-12V DC? [more inside]
posted by Bengston on Dec 4, 2007 - 3 answers

Solar photovoltaic fabric. I'm trying to find or recall about a particular type of technology that I half-remember, as well as find out more about the current state of the art for flexible and/or fabric and/or imprinted solar panels. [more inside]
posted by loquacious on Jun 6, 2007 - 4 answers

Does anyone have any information about, or experience with, SEI's online PV courses? [more inside]
posted by bjork24 on Sep 17, 2006 - 1 answer