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Author Topic: Photvoltaics (PV)  (Read 8665 times)

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AGelbert

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Re: Photvoltaics (PV)
« Reply #285 on: June 16, 2018, 05:20:42 pm »
From my inputs, they claim I would need 67 X 360W PANELS :o plus a 13.5KW battery. Besides the fact that I could only get about a third of that many panels on the south side of my roof, it's just too much money.  :(


The way I would recommend using solar in your unique situation ( should you ever wish to) is to build a very simple parallel system with one large panel (scaling up eventually to perhaps two panels)  and a small battery array, and run SOMETHING off it. A dedicated circuit for your refrigerator, perhaps. If that's too big a load you could run lights.

An MPPT charge controller helps with the shade problem.

I think it makes really better sense here of course. We have 5 hour sun. I could run my energy-sink McMansion with pool from a good rooftop grid-tie, and it would make my house more desirable to sell when I finally do downsize. I just hesitate to take on debt for that. But it would be required, because TPTB requires the job be done by pros, which implies it gets done fast and you have to pay for it all at once.



Agreed. The idea of a dedicated circuit has always appealed to me, particularly one where voltage regulation is not a big issue. For example, in the winter, though the total hours of sunlight are reduced, we actually get more direct sunlight on my home. Solar Panels (about 6KW) on the roof could easily be rigged for a dedicated heating circuit. Filament heating circuits, as long as you protect them from too much amperage (easy to do with solar Panels  ;)), could care less about voltage variation. All my heating is electric. I stopped using the kerosene fired furnace over 15 years ago. I have saved a lot of money by doing that and, since Green Mountain Power has a very large Renewable Energy portfolio, it has definitely lowered my carbon footprint.

Yes, the the fossil fuelers will be quick to blah, blah, blah about "kerosene/oil/fossil fuels are more efficient than electrical resistance for heating", but they are WRONG.

WHY? Because, though they are technically thermodynamically right when the two energy transfer systems are viewed in isolation, they FAIL TO add in the fuel cost of those trucks that carry that kerosene, their maintenance, AND the trucks that carry the kerosene from the refinery (and so on). No sir, they have this STRANGE idea that "energy going through wires costs the same to transport to your home" as energy going from an oil well to the refinery to the truck to the distributor to your home furnace to be burned. BULLSHIT.

Pardon my rant. ;D I also have issues with all this government permitting baloney TPTB place on us before we are allowed to get a Renewable Energy system going. More people are killed each year from misusing kerosene portable heaters than PV or wind electrical systems injuries by a factor easily of a thousand! But, no sir, we don't want to "overregulate" anything that uses fossil fuels, now do we? 😈

Well, at least the electricians are happy.  ::)
Hope deferred maketh the heart sick: but when the desire cometh, it is a tree of life. Pr. 13:12

 

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