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IRR/NPV calculations

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Posted by Lester Long on October 7, 2007, 1:33 pm
Has anyone found IRR (Internal Rate of Return) or NPV (Net Present Value)
calculations for solar or wind farms?  I'm considering the financial return
in purchasing land and the equipment to sell the electric back on the grid.

I assume the following are upfront costs:
-Solar/Wind equipment
-Connection to the grid
+any applicable State/Federal Rebates

Ongoing costs might include:
-property taxes

Revenues would include:
+sale of electric to power companies
+accumulated depreciation of equipment
+appreciation of the land value

Anything to add to this list?

Thanks.....I've been learning about this for a few years now and haven't
seen such calculations.

Posted by R.H. Allen on October 7, 2007, 2:23 pm
Lester Long wrote:


Posted by daestrom on October 7, 2007, 3:41 pm

One that comes to mind is the time-value of money.  Interest on the capital
spent up front.  On the other side of the equation, some projection about
the rising price of the power sold due to inflation.


Posted by dold on October 7, 2007, 6:15 pm
+ simultaneous sub let of land use (livestock grazing rights)

Clarence A Dold - Hidden Valley Lake, CA, USA  GPS: 38.8,-122.5

Posted by Mel on October 18, 2007, 11:46 am
 Lester Long a crit :

you might also want to include insurance costs in your ongoing costs,
depending on where you live grid use costs too, as well as taxes on reven=

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