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diy solar

New NEC code makes it impossible for DIY systems to be compliant

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Hedges said:
pv-magazine-usa.com

How standards can ensure battery safety

There's no understating the importance of maintaining a safe battery system, and that maintenance will become only more important as battery adoption grows exponentially in the coming years. Fortunately, new standards are being developed alongside existing protocol to make safety management...
pv-magazine-usa.com pv-magazine-usa.com

"California has already adopted the 2018 IRC as part of its current state residential building code, and with it, the requirement that any ESS placed in a home be listed to UL 9540."

Hey, if this is the deal, and nothing in NEC extends UL requirement to a shed > 5' from your house, should be no sweat.
All it would mean is that if you want to mount an explody (or LiFePO4) battery on your house, it has to be part of a UL listed ESS.
If not listed, keep it away from the house. Which you probably ought to do, anyway.
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I have a blacksmith friend. As he once told me, "Outbuildings are the secret to keeping mama happy!" Not burning down her house would certainly count as a plus.
 
OK, a nickel per kWh is cost effective, on par with generating a kWh of AC from the sun.
At one cycle per day, 11 years for your 4000 cycles.

My rates are $0.15, $0.30, $0.45 so I've got a $0.30 spread.

My AGM, 1000 cycles to 50% and $5000 for 20 kWh would be $0.50/kWh and 2.7 years.
So my plan is to give the utility 3 kWh low time (costing me somewhere between $0.075 and $0.15 per kWh) and take back one kWh in the evening.

Your alternative might be to keep an iceberg in the living room, for A/C during peak times.
H2O costs less than Li and is good for more than 4000 cycles.

1607914743658.png
 
The EVE cells are a hiccup in the plan but not a huge deal.
And I do respect the codes. My plan always has been to have my system permitted and approved.
The codes are intimidating and annoying for DIYers but DIYers probably need them the most.
 
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Thanks SolarQueen. I hope to have some answers from my building department today.

I asked them if Rapid Shutdown is required since there recently was someone here in FL that wasn't required to install it.
And because they already told me UL listed batteries are required, I asked them if UL registered will work.

So far I have only gotten answers that I didn't want to hear.
 
ArthurEld said:
Thanks SolarQueen. I hope to have some answers from my building department today.

I asked them if Rapid Shutdown is required since there recently was someone here in FL that wasn't required to install it.
And because they already told me UL listed batteries are required, I asked them if UL registered will work.

So far I have only gotten answers that I didn't want to hear.
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String level Rapid Shutdown would be required with 2017. That's much easier (and cheaper) than module level. I thought according to the rules we were seeing here that lead acid batteries were exempt from the UL requirement. Well, the AHJ is always right.
 
That makes sense. I think you found the answers.
I will call AHJ one more time and if I don't get answers we should just submit the plans.
Thanks so much Amy
 
MadMax03 said:
Again, you don't understand how capitalism works. The private sector can do everything better, faster, safer and cheaper. Every single .gov program is an exorbitantly expensive, total failure, and you are paying for all of them.
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Well the USPS is the cheapest way to send mail.
 
Lots of stuff here, and this will likely keep me off grid I think, because I am on private property and going to do it myself (and the help of the members of this forum). I will also add there are areas that unions actually have a huge influence on what ends up as code.
 
MadMax03 said:
This is how it starts.

And this is the very reason I was flamed in another thread for calling out the previous generation for putting our country in the dire situation it's in. One's argument was "And is the profit motive a bad thing?" It's appalling how little people know about economics and history. This is hardly the forum to go into this subject with people and frankly, as old as the members are who expressed their disapproval of what I said, they should know this stuff by now, and therefore I have neither the time nor patience to educate them. But here's some food for thought:

Big corporations write anti-competition laws under the guise of "Regulations". These are paid for in the Lobby, where politicians are bought off to pass them as law, enforced by a gun held by the government. These laws then present a barrier of entry for new businesses/competition, and constrict already existing smaller corporations and businesses over the long term, eventually until they either give up and are acquired by the larger corp. (via another anti-capitalist mechanism of mergers and acquisitions), or the more defiant businesses ultimately fold into bankruptcy by being priced out of the market by the larger corp. over time, as the larger corp can absorb loss for a longer duration than the smaller business. Since these "Regulations" are .gov enforced, the big corps. involvement stops at the lobby, and taxpayers (you) now get to fund big corporation's anti-competition, anti- capitalist, anti-American regulations! You personally, are literally funding fascism, the protection of big corporations from competition, and the decimation of small business all while the barrel of a gun is pointed at your head! Neat, right!

This process is fundamental fascism, and diametrically opposed to capitalism. Big corporations are self-serving only, are only interested in profit and smashing competition, and screw everyone else.

See how that works?
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Yup, that's pretty much how the con game is played. Corruption through and through, top to bottom, it's the reason state and local governments license hair cutting and nail polishing and everything else under the sun.
 
That's a misleading post, the USPS receives plenty of indirect subsidies. You can be sure that all the cheap loans they have 'borrowed' will have to be paid by the tax payer at some point. Here are a few of the hidden 'subsidies' they enjoy.

• It can borrow up to $15 billion from the U.S. Treasury at low interest rates.

• It is exempt from state and local sales, income, and property taxes; parking tickets; vehicle fees; and other charges.

• It pays federal corporate income taxes on its earnings from competitive products, but those taxes are circulated back to the USPS.1

• It is not bound by local zoning laws, is immune from a range of civil actions, and has the power of eminent domain.

• It has government regulatory power, which it can use to impede competitors.
 
RV wiring is governed by RVIA standards. 110v socket mounting are definitely not up to NEC. Some similarties for GFI sockets and wiring.
 
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