Solar panel costing.xls
 
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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 that’s 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

File Date:

14 Aug 2008

File Author:

John Doyle

File Version:

1.0

File Size:

64.00 Kb

File Type:

xls

Downloads:

283

Rating:

Total Votes:2

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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