Oilpan4
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Re: Dumbest excuses people have given for NOT installing PV

Thu Apr 18, 2019 8:15 am

Inverter costs will run between 13 and 17 cents per watt.
If I get a used 3,800 inverter, stick 3,300 watts worth of panels on it that will come to 15 cents a watt.
So 26 cents a watt for panels, 15 for inverters, 41 cents a watt.
Sure I could perfect match everything together for 3 or 4 times the cost, mmmm I'll pass.
I expect a 3,300w array to make at least 16kwh per day or $1.12 worth of power per day. IF electricity stays at 7 cents a kwh, but our idiot governor signed a renewable power mandate that will likey cause electricity prices to sky rocket.
For the first 3,300w set pay back will take 3 years and about 2 months for the panels and inverter only.
By the time I add additional hard ware, unistrut or superstrut, other racking hardware, should be less than 5 years for sure.
Maybe find some suckers to resell panels to, maybe a little less than 5 years.

I pitty the fools who think a 10 to 20 year pay back is acceptable. Ain't nobody got time for that.
Last edited by Oilpan4 on Sat Apr 20, 2019 8:28 am, edited 1 time in total.
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smkettner
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Re: Dumbest excuses people have given for NOT installing PV

Thu Apr 18, 2019 10:03 am

I have a 2500 inverter matched to 3kW of solar panels. Virtually never maxes out the inverter.
Payback was 5 years and that was 2 years ago.
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LTLFTcomposite
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Re: Dumbest excuses people have given for NOT installing PV

Thu Apr 18, 2019 10:37 am

We live near the ocean and the salt air quickly corrodes anything made of metal. If you get half the normal life out of an AC condenser you're doing well.

Besides FPL is installing lots of solar generation. In an era where we rely on streaming services for movies and music why would I want to sign up to maintain my own power generation infrastructure? That's like buying a cow because you want a glass of milk, better to outsource it.
LTL
White 2012 SV delivered 10 Dec 2011 returned 25 Nov 2014 replaced with stopgap ICE Sentra
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Oilpan4
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Re: Dumbest excuses people have given for NOT installing PV

Fri Apr 19, 2019 9:34 am

If you want solar, don't wait for the government and/or utility to do it for you.

My problem is I have 7 cent a kwh power, no real incentives and 0 other people's money.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

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LTLFTcomposite
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Re: Dumbest excuses people have given for NOT installing PV

Fri Apr 19, 2019 1:40 pm

Oilpan4 wrote:If you want solar, don't wait for the government and/or utility to do it for you.

My problem is I have 7 cent a kwh power, no real incentives and 0 other people's money.
Exactly. If I was paying 39 cents/kwh I'd be all over it. At 11 cents the payback just isn't there, even with a subsidy what's a system going to set me back $10-20k? Just the opportunity cost on that capital likely exceeds my power bill even if it took it to zero.

As for the utility, they don't have to do it for me, they can do it for themselves. You know they're getting those panels wholesale by the shipping container; I can't get that economy of scale. Plus they can back them up with gas turbines instead of costly batteries. People love to hate the power company but at 11 cents I think they're providing a fantastic value.
LTL
White 2012 SV delivered 10 Dec 2011 returned 25 Nov 2014 replaced with stopgap ICE Sentra
[35 months] [35K miles] [9 Bars]
2013 Volt replaced after 36 months/30k miles with ICE Rogue
2016 SV-adjacent May 2016 lost 4th bar March 2018


SageBrush
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Re: Dumbest excuses people have given for NOT installing PV

Sat Apr 20, 2019 6:06 am

Oilpan4 wrote: I expect a 3,300w array to make at least 16kwh per day or $1.12 worth of power per day. IF electricity stays at 7 cents a kwh
Show a bill.
I'm *very* skeptical that you pay 7 cents a kWh now.
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Oilpan4
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Re: Dumbest excuses people have given for NOT installing PV

Sat Apr 20, 2019 8:18 am

Oh I was wrong it's not 7 cents. It's 6.825 cents a kwh. Surcharge is $25.
I rounded up on the base rate. My bad.

http://www.rcec.coop/content/consumer-rates-0
Down load the PDF titled "general services".
Read.

Last month total bill was 9.9 cents over all after adding the surcharge, tax, another fee and a conservation fun.

New mexico has the lowest power bills in the nation for 2018.

https://www.electricitylocal.com/states/new-mexico/

"The average monthly residential electricity bill in New Mexico is $75, which ranks 51st in the nation"
Last edited by Oilpan4 on Sat Apr 20, 2019 8:30 am, edited 1 time in total.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

Oilpan4
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Re: Dumbest excuses people have given for NOT installing PV

Sat Apr 20, 2019 8:26 am

LTLFTcomposite wrote:
Oilpan4 wrote:If you want solar, don't wait for the government and/or utility to do it for you.

My problem is I have 7 cent a kwh power, no real incentives and 0 other people's money.
Exactly. If I was paying 39 cents/kwh I'd be all over it. At 11 cents the payback just isn't there, even with a subsidy what's a system going to set me back $10-20k? Just the opportunity cost on that capital likely exceeds my power bill even if it took it to zero.

As for the utility, they don't have to do it for me, they can do it for themselves. You know they're getting those panels wholesale by the shipping container; I can't get that economy of scale. Plus they can back them up with gas turbines instead of costly batteries. People love to hate the power company but at 11 cents I think they're providing a fantastic value.
At the last home and garden show both local solar companies were there. They were offering a 6kw system for $17,000 after other people's money was applied.

I want to pay more like $3,000 to $4,000 for 6kw.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

SageBrush
Posts: 4737
Joined: Sun Mar 06, 2011 2:28 am
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Location: NM

Re: Dumbest excuses people have given for NOT installing PV

Sat Apr 20, 2019 9:03 am

Oilpan4 wrote: Last month total bill was 9.9 cents over all after adding the surcharge, tax, another fee and a conservation fun[d].
Now you have it right.

New mexico has the lowest power bills in the nation for 2018.
Don't be so sure. It is hard to compare due to fees and fixed charges.
Your service is a good example, since it hides behind a large fixed fee. PNM charges 11 cents a kWh all inclusive but the monthly fixed fee is $7.11. PNM is cheaper than NG country unless usage is over ~ 1800 kWh a month.
I do agree though that your pay-off period for PV should use 9.9 cents a kWh (and obviously not 7 cents) for the calc since that is your marginal cost.

The average monthly residential electricity bill in New Mexico is $75, which ranks 51st in the nation"
Sure, but you have to normalize for amount of energy used. If you had read the link that you posted you would know that per kWh costs in NM average 11.37 cents which is 25th in the country.
Last edited by SageBrush on Sat Apr 20, 2019 10:05 am, edited 1 time in total.
2013 LEAF 'S' Model with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Two years in Colorado, now in NM
03/2018: 58 Ahr, 28k miles
11/2018: 56.16 Ahr, 30k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

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