CIGS PV cells printed on aluminum foil for $1/watt.
Efficiency is less than silicon PV's, but cost is MUCH lower.
http://www.memagazine.org/may08/departm ... t_out.html
http://www.nanosolar.com/
http://www.heliovolt.net/
http://www.daystartech.com/
DayStar is public... Buy now.
Cheap Solar Power
Moderator: ericjon262
-
- Peer Mediator
- Posts: 15629
- Joined: Wed Nov 24, 2004 11:13 pm
- Location: In the darkness, where fear and knowing are one
- Contact:
-
- Peer Mediator
- Posts: 15629
- Joined: Wed Nov 24, 2004 11:13 pm
- Location: In the darkness, where fear and knowing are one
- Contact:
What's he heating....Boston??? If his energy consumption is that high, would $10k worth of solar heating equipment cover all of his demand?The Dark Side of Will wrote:My dad's estimated heating oil cost for this year is over $6000... he's looking at solar water and home heat (still has a furnace and hot water heat system). Even if it costs $10K, the repayment interval is only 2 years.
Bryce
-
- Peer Mediator
- Posts: 15629
- Joined: Wed Nov 24, 2004 11:13 pm
- Location: In the darkness, where fear and knowing are one
- Contact:
He's using a GE furnace that was state of the art when it was built (in the 1950's). The house itself is very old and quite large. It still has the original wood frame/counterweighted windows with wavy glass. While this is nifty to old skool types, it lacks a good bit for energy efficiency. We've been quoted $250 each for modern windows... but the house has over 50 windows so even that effort will cost $10K. That same money put into a solar system will likely make a MUCH bigger dent in the bill. The windows can (and SHOULD) come later.
yeah I have an indirect hot water tank and water tubes under the floors for hot water radiant heat. I've got a high efficiency propane boiler for my hot water and heating but am considering adding a solar heater for it and leave the boiler as the backup heater.
but I also insulated my house with spray in poluerethane foam and radiant barrier foil.
my worse electric bill for the A/C has only been 160$ for a 3000sqft house
i've had 800sqft apartments with 200$ bills
but I also insulated my house with spray in poluerethane foam and radiant barrier foil.
my worse electric bill for the A/C has only been 160$ for a 3000sqft house
i've had 800sqft apartments with 200$ bills