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Solar Power Station

10/19/2010 6:16 AM

What is the indication of best solar panel in the current market? Who is the best manufacture in the market from all aspects?

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#1

Re: Solar Power Station

10/19/2010 11:14 AM
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#2

Re: Solar Power Station

10/21/2010 11:56 AM

1) price per watt

2) efficiency - (only matters in relation to space available)

3) UL or other agency certification

4) guarantees a) mechanical b) loss of efficiency

5) appearance

Best in class - probably 50 different mfgs are equal

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#3

Re: Solar Power Station

10/25/2010 2:07 PM

The guy whose solar panel generate most wattage, ocupies less area, last indefinite time and is FREE.

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#4

Re: Solar Power Station

10/26/2010 9:05 AM

Don't forget to add the manufacturer's and installer's Warranty period to that list! GA from me!!!

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#5

Re: Solar Power Station

10/27/2010 2:45 PM

A few years back I spent months listing and going over literally virtually every solar panel manufacturer and major supplier in the world and I came to the simple conclusion that they are all much the same.

I also reconfirmed my conclusion that once you strip away government subsidies you find that existing solar technology is STILL a net sink and totally unsustainable (in that it requires far more energy to make the panels and inverters than they will ever produce). I am still waiting for them to break even (one or two more decades yet).

See previous solar discussion threads on CR4 for more information.

As a side note I now (in small part) design and sell the blooming things (solar power plants small scale to MW generation). I feel so dirty.

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#6
In reply to #5

Re: Solar Power Station

10/27/2010 3:18 PM

Wrong on the embodied energy - some green types and their counter parts harp on that but everything credible that I have read the past couple of years says less than two years payback for embodied energy in a panel.

Russ

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#7
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Re: Solar Power Station

10/27/2010 3:29 PM

Government subsidies (among other dirty tricks) are used to hide the truth and show a short payback period. Also, most totally ignore the fact that the inverter and other equipment necessary for every solar system has a lifetime and must be included in the payback period and energy out vs energy to manufacture calculations.

Have a close look at previous threads on CR4 regarding solar power for more details.

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#8
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Re: Solar Power Station

10/27/2010 3:40 PM

Don't need to look back at threads - I read about the stuff everyday - in some detail.

Embodied energy has nothing to do with subsidies. You are confusing embodied energy payback and financial payback.

Solar does definitely have a very long financial payback.

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#9
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Re: Solar Power Station

10/27/2010 3:59 PM

And does the Embodied energy calculations take into account the equipment necessary to complete the solar system (such as the inverter) as well as the energy for manufacturing and realistic panel and inverter life cycles (and panel aging), or just the solar panel itself.

This has always been the problem (and this is totally ignoring battery storage) and when you take into account the system as a whole the figures and results are abysmal. We are still looking at a decade or two before the new more energy efficient solar panel technologies reach commercial viability before we can truly market and sell solar as a sustainable energy producer (and not just a feel-good net energy sink).

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#10
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Re: Solar Power Station

10/27/2010 4:09 PM

1) Your post said panel - it did not mention any other system component

2) Panel aging is well known now except for thin film

3) Battery storage? An entirely different game and very expensive power - I have no idea of the embodied energy in batteries and don't care as they are such a bad deal money wise.

4) You really sell these things? You should spend more time studying up -

5) If you want to talk about the embodied energy in a panel and confuse that with financial payback and then switch to batteries and systems it is a bit hard to follow.

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#11
In reply to #10

Re: Solar Power Station

10/27/2010 4:20 PM

Sorry, doing two things at once here (and still jet-lagged) so there may have been some confusion in getting what's in my head down on to the screen.

Only the first paragraph of of post #5 is directly applicable to the original question posted by the guest, the rest is very broad statements regarding two payback and energy in VS energy out.

Myself (and others) have answered the rest better in other threads, probably best that you check out those threads for more detailed (and more coherent) answers.

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#12
In reply to #11

Re: Solar Power Station

10/28/2010 8:45 AM

Maybe others have something interesting to say but I have read enough to understand how deep your knowledge on the topic is and I am not interested in it - nothing to learn from you I think.

Sometimes it is better to admit when blowing smoke than to keep trying to cover up!

Regards & I am outta here - play with the idiot time is over. (TV show)

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