[BLDG-SIM] Photovoltaics - cost payback

Vikram Sami VSami at lasarchitect.com
Thu Feb 15 21:00:14 PST 2007


Not necessarily..

If you consider $8-$10 installed (net metered)
If you factor in federal tax incentives (around 30%), it gets easier.

Furthermore, some states (like California) have state incentives. I saw a presentation at a conference in Florida where this guy in LA showed a 4-5 year payback after all the tax incentives and depreciation tax breaks.

Some utilities buy back net metered power at a premium - Georgia Power here in Atlanta is currently buying back at 17.4 c/kWh. he Hawaii Electric Company has some incentives for PV as well. 

40-60 years seems overly conservative.



Vikram Sami, LEED AP
Direct Phone 404-253-1466 | Direct Fax 404-253-1366

LORD, AECK & SARGENT ARCHITECTURE
Responsive Design · Technological Expertise · Exceptional Service
www.lordaecksargent.com 



-----Original Message-----
From: BLDG-SIM at gard.com on behalf of K Emerson
Sent: Thu 2/15/2007 22:50
To: BLDG-SIM at gard.com
Cc: ramana.koti at gmail.com
Subject: [BLDG-SIM] Photovoltaics - cost payback
 
I'd agree with Jeff.  At the other end of the equation
you might want to check out PVWatts, available for use
on the National Renewable Energy Lab web site. 
Without significant subsidies you'll discover that the
payback is very long indeed, with simple paybacks of
around 40 to 60 years.  

Keith Emerson




--- Jeff Haberl <jeffhaberl at tees.tamus.edu> wrote:

> That's a little low. 
> 
> Try $7 - $10 w/o batteries and $10 to $15
> w/batteries. 
> 
> Jeff
> BB 8=!  8=)  :=)  8=)  ;=)  8=)  8=(  8=)  :=')  8=)
>  8=)  8=? BB
> 
> Jeff S. Haberl, Ph.D.,
> P.E.............................jhaberl at esl.tamu.edu
> 
>
Professor......................................................Office
> Ph: 979-845-6507
> 
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> 
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> 
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> 
> BB 8=/  8=)  :=)  8=)  ;=)  8=)  8=()  8=) 8=?  8=) 
> 8=)  8= BB
>  
> 
> ----- Original Message -----
> From: bldg-sim at gard.com <bldg-sim at gard.com>
> To: bldg-sim at gard.com <bldg-sim at gard.com>
> Cc: ramana.koti at gmail.com <ramana.koti at gmail.com>
> Sent: Wed Feb 14 17:16:14 2007
> Subject: [bldg-sim] Photovoltaics - cost payback
> 
> Ramana,
>  
> a rule of thumb would be $6-$10 per installed watt
> (includes wiring, inverters, etc, no batteries, net
> capacity returned to grid).  To get payback you
> would need to compare the cost of electricity in the
> region.
>  
> say high to Joan, I think BINM just hired her from
> the GSA.
>  
> Leonard Sciarra,  AIA, LEED ap
> 312.577.6580 (Dir)
> G E N S L E R | Architecture & Design Worldwide
> 30 West Monroe Street
> Chicago IL, 60603  
> 312.456.0123
> leonard_sciarra at gensler.com      
>  
> 
> ________________________________
> 
> From: bldg-sim at gard.com [mailto:bldg-sim at gard.com]
> On Behalf Of Ramana Koti
> Sent: Wednesday, February 14, 2007 4:18 PM
> To: bldg-sim at gard.com
> Subject: [bldg-sim] Photovoltaics - cost payback
> 
> 
> Dear all,
> 
> Any pointers to studies on how long it takes for
> photovoltaics to payback for the first cost (with or
> without balance of the system)?
> 
> I understand there are many variables involved and
> there are no straight answers, but any information
> regarding one or more than climatic region/building
> types will be helpful. 
> 
> Thanks,
> 
> Ramana Koti, Sustainable Building Analyst
> LEED AP
> 
> ELEMENTS | a division of berkebile nelson immenschuh
> mcdowell architects
> 106 W. 14th Street Suite 200
> Kansas City, Missouri 64105
> 
> p 816.783.1635 f 816.783.1501
> www.bnim.com| elements.bnim.com
> 
> âT£ Before you print think about the ENVIRONMENT 
> 
> 
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