Solar panel costing.xls
 

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Description:

I have also been investigating purchasing a solar p.v. panels to free my house from the national grid. Using my electricity bill and using information on
http://www.windandsun.co.uk/System_sizing_grid_connect.htm
I calculated that I could totally replace my electricity supply with 17 solar panel units each covering 8sqm. The cost is a whopping £102000 about ($204000). Ignoring interest thatís a 76 year payback period and the system only lasts 25 years.
Does any green initiative actually stack up on paper or is simply a costly gesture?

Calculation Reference
Solar Energy
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Submitted On:
14 Aug 2008
Submitted By:
JohnDoyle[Admin]
File Date:
14 Aug 2008
File Author:
John Doyle
File Version:
1.0
File Size:
64.00 Kb
File Type:
xls
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353
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Comments  

 
#3 mbartosik 2009-08-18 00:56
Quoted install cost is about 60% higher than Long Island currency adjusted (not a cheap place).

Does not include any tax benefits or incentives or grants etc.

Cost of energy appears a little low.

Major system components are warrenteed for 25 years (that's different to system lifetime).

Look at www.lishines.org for a US alternative.
 
 
#2 sami_04 2009-03-02 14:32
good
 
 
#1 mblair 2008-08-17 19:37
The cost for your solar panels seems very high compared to australia
 

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