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Re: fmeded post# 33864

Saturday, 01/31/2015 1:33:31 PM

Saturday, January 31, 2015 1:33:31 PM

Post# of 63559
Motivation = Confidence = Knowledge

I don't know much about solar savings, and am no expert, but will at least do a google search on the matter.

Fmeded, yes, the savings are speculative - 100%. BUT they are not numbers that have been pulled from thin air. (read article)

Payback periods are speculative as well.

Your lack of motivation to explain how Renesola panels could save double doesn't come from lack of willpower, but rather that you know a priori that it's just outright stupid.
It would be like trying to explain how a 2014 Ford Focus 2.0L burns 8L/100km last year, and that the same car this year burns 4L...
(I don't think I would be able to motivate myself to explain this phenomemon as well.)

How much will you save?

To Calculate the economics of a home Solar-Electric System, you need to be aware of the amount of electricity per day you will need, which is expressed in kilowatt hours per day (KWH/day). You can calculate this information from the power needs of the lights and appliances you have in a home or cabin, or, take your monthly electric bill and divide the number of kilowatt hours consumed by the number of days in the month to get the average daily usage for that month. Electricity consumption does vary during the year. It would be best to add up a years worth of electricity used and divide the total hours by 365.

The average cost of a Solar-Electric system is determined NOT by the KWH/day produced by the system, but by the hourly capacity the Solar-Electric System can produce. Most Solar-Electric Systems in the United States have an hourly capacity of approximately 2KW. That means the system will produce 2 KWH for every hour of sunlight it receives. Assuming a minimum of five hours of Sun light, that’s 10 KWH/day or about a third of the electricity needed for the average home.

For most Solar-Electric Systems, pricing works out to be about $4 per watt, or $4000 per kilowatt of capacity. Depending on your system configuration, you may need batteries, controllers, and labor to install the system. These needs add around $5 per kilowatt for an approximate total of $9000 per kilowatt of capacity installed. Note that battery storage for these multi-kilowatt systems would add approximately 50% to the system cost...


Read the full article:

http://pasolar-electric.com/cost