Posted by jdemaris on June 10, 2014 at 04:40:03 from (70.195.142.212):
In Reply to: Free Electricity posted by bwillett on June 09, 2014 at 16:02:09:
If a person uses solar with no hook-up to the power-grid - much of the electricity made is wasted. No place for it to go when the sun is bright. I.e. "use it or lose it." The only systems that . . on paper . . come close to paying for themselves are grid-tie systems bought with rebates and NO battery banks. All the equipment (except the solar panels) only comes with 5 year warrantees. After that - all repairs are "out of pocket."
Most grid-tie systems will not work when the grid is down. So there you are - with a $30,000 - $50,000 system -the grid goes out during a storm - and with all that solar - you've got no power anyway.
My 5400 watt system has an added battery bank, charge controllers and switching so I can force it to work when the grid is down. Real payback time is probably . . never. Not why I bought it. We paid around $8000 for a near $50,000 system using the rebates that we were forced to pay into anyway. Our plan was - and still is -to move somewhere so rural no power is available and take it all with us. Saving money was never part of the plan.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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