Author Topic: Tesla Solar Panels Price Cut  (Read 88882 times)

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Offline woodburyowner

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Tesla Solar Panels Price Cut
« on: May 05, 2019, 11:11:52 AM »
Just saw that Tesla is lowering their solar panel cost.
https://www.theverge.com/2019/4/30/18523750/tesla-solar-panels-price-slash-decline-sales-roof

Does anyone have any experience with Tesla solar installation (not Solarcity as it's evolved over the last few years).  Price is getting to be very attractive now.

Online eyephone

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Re: Tesla Solar Panels Price Cut
« Reply #1 on: May 05, 2019, 05:00:40 PM »
Price need to drop more.

(Like a: how low can you go price drop?)  ;)
« Last Edit: May 05, 2019, 05:44:28 PM by eyephone »

Offline daedalus

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Re: Tesla Solar Panels Price Cut
« Reply #2 on: May 05, 2019, 09:34:00 PM »
I wonder if SCE actually pays customers for excess generation.  4KW is way more than I need, even with 1 electric car, assuming 8 hours of generation a day.  I assume there's some basic monthly grid fee even if you generate more than you consume.  Ignoring this, it's still a 8 year payoff for me. though I guess electricity will only go up in price over time.

There's still the question of how do you replace your roofing shingles every 30 years and still keep everything working and warrantied, and how much extra that will cost.  Maybe just replace the whole system every 30 years along with the roof.

Online eyephone

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Re: Tesla Solar Panels Price Cut
« Reply #3 on: May 06, 2019, 07:21:57 AM »
Prices may drop after the tax credit expires.

I wonder if SCE actually pays customers for excess generation.  4KW is way more than I need, even with 1 electric car, assuming 8 hours of generation a day.  I assume there's some basic monthly grid fee even if you generate more than you consume.  Ignoring this, it's still a 8 year payoff for me. though I guess electricity will only go up in price over time.

There's still the question of how do you replace your roofing shingles every 30 years and still keep everything working and warrantied, and how much extra that will cost.  Maybe just replace the whole system every 30 years along with the roof.

Offline Cares

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Re: Tesla Solar Panels Price Cut
« Reply #4 on: May 06, 2019, 08:57:50 AM »
I wonder if SCE actually pays customers for excess generation.  4KW is way more than I need, even with 1 electric car, assuming 8 hours of generation a day.  I assume there's some basic monthly grid fee even if you generate more than you consume.  Ignoring this, it's still a 8 year payoff for me. though I guess electricity will only go up in price over time.

There's still the question of how do you replace your roofing shingles every 30 years and still keep everything working and warrantied, and how much extra that will cost.  Maybe just replace the whole system every 30 years along with the roof.

4KW is a small system. I am doubtful you have anywhere near 100% offset with an electric car if you had a system that size. California probably averages 5 hours of sun a day throughout the year. That's only 7300 kWh (not accounting for losses) which is not that much for a house without an electric car. We barely use air condition and if you remove our 2 electric cars from the equation we're probably averaging just around 7000 kWh annually.

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Offline woodburyowner

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Re: Tesla Solar Panels Price Cut
« Reply #5 on: May 06, 2019, 09:08:08 AM »
I wonder if SCE actually pays customers for excess generation.  4KW is way more than I need, even with 1 electric car, assuming 8 hours of generation a day.  I assume there's some basic monthly grid fee even if you generate more than you consume.  Ignoring this, it's still a 8 year payoff for me. though I guess electricity will only go up in price over time.

There's still the question of how do you replace your roofing shingles every 30 years and still keep everything working and warrantied, and how much extra that will cost.  Maybe just replace the whole system every 30 years along with the roof.

4kWh system will yield 6,238 kWh per year.  M3 EV uses ~2500 kWh for 10k miles.  Low range of standard electricity usage in a avg SFR would be around 5000 kWh per year (light AC use).  --> It's very unlikely you will have any excess with 1 EV in the mix.  BTW, the SCE buy back rate is very low and not even worth calculating.

Offline irvinehomeowner

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Re: Tesla Solar Panels Price Cut
« Reply #6 on: May 06, 2019, 09:12:08 AM »
I think eventually will be getting solar.

Once we get an EV that still qualifies for Fed credit, we will use that to help finance panels.

I'm wondering if more and more homes get solar, residential areas can actually become generators and we may see electricity costs go down.

Imagine free AC for your home and free fuel for your cars... that might be more beneficial than automated driving. :)
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Offline momopi

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Re: Tesla Solar Panels Price Cut
« Reply #7 on: May 06, 2019, 09:25:54 AM »
Personally, I like the roof tile style solar concept.  When I need to replace my roof, I'd seriously consider it if the price is acceptable.  I mean, you're already paying to replace the roof anyway.

But for now I'm not going to buy all electric cars.  Hybrids yes -- the technology is now quite mature.

Online eyephone

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Re: Tesla Solar Panels Price Cut
« Reply #8 on: May 06, 2019, 10:11:12 AM »
I wonder if SCE actually pays customers for excess generation.  4KW is way more than I need, even with 1 electric car, assuming 8 hours of generation a day.  I assume there's some basic monthly grid fee even if you generate more than you consume.  Ignoring this, it's still a 8 year payoff for me. though I guess electricity will only go up in price over time.

There's still the question of how do you replace your roofing shingles every 30 years and still keep everything working and warrantied, and how much extra that will cost.  Maybe just replace the whole system every 30 years along with the roof.

4kWh system will yield 6,238 kWh per year.  M3 EV uses ~2500 kWh for 10k miles.  Low range of standard electricity usage in a avg SFR would be around 5000 kWh per year (light AC use).  --> It's very unlikely you will have any excess with 1 EV in the mix.  BTW, the SCE buy back rate is very low and not even worth calculating.

It’s not worth it, unless you work from home or you have the AC on 247 or use a lot of electricity. (not prime time)


Offline woodburyowner

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Re: Tesla Solar Panels Price Cut
« Reply #9 on: May 06, 2019, 11:57:28 AM »
I wonder if SCE actually pays customers for excess generation.  4KW is way more than I need, even with 1 electric car, assuming 8 hours of generation a day.  I assume there's some basic monthly grid fee even if you generate more than you consume.  Ignoring this, it's still a 8 year payoff for me. though I guess electricity will only go up in price over time.

There's still the question of how do you replace your roofing shingles every 30 years and still keep everything working and warrantied, and how much extra that will cost.  Maybe just replace the whole system every 30 years along with the roof.

4kWh system will yield 6,238 kWh per year.  M3 EV uses ~2500 kWh for 10k miles.  Low range of standard electricity usage in a avg SFR would be around 5000 kWh per year (light AC use).  --> It's very unlikely you will have any excess with 1 EV in the mix.  BTW, the SCE buy back rate is very low and not even worth calculating.

It’s not worth it, unless you work from home or you have the AC on 247 or use a lot of electricity. (not prime time)


It's better to view purchasing solar panels as a fix income purchase.  $8k net for $1k yield a year.  That's a 12.5% yield per year (with high probability the yield will increase due to rising kWh costs).  Where else are you getting this type of return?

Online eyephone

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Re: Tesla Solar Panels Price Cut
« Reply #10 on: May 06, 2019, 12:03:10 PM »
Hmm. Good point Woodbury. I appreciate your post. That is something to consider.

Let’s say if your not sure you might move or you might rent out the place in the future. (It’s hard to recover dollar for dollar the amount of money you spent. Also, who knows if you can charge a premium on the rent.)


Offline nosuchreality

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Re: Tesla Solar Panels Price Cut
« Reply #11 on: May 06, 2019, 12:53:58 PM »
I think eventually will be getting solar.

Once we get an EV that still qualifies for Fed credit, we will use that to help finance panels.

I'm wondering if more and more homes get solar, residential areas can actually become generators and we may see electricity costs go down.

Imagine free AC for your home and free fuel for your cars... that might be more beneficial than automated driving. :)

Minimum charges.

TOU charges that will shift peak use charges. They've already pushed them back, but going forward as more solar comes online, expect feature peak charges to occur in the 6PM-10PM window. 

Offline woodburyowner

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Re: Tesla Solar Panels Price Cut
« Reply #12 on: May 06, 2019, 01:08:49 PM »
Looks like Tesla won't install on any spanish tile or clay roofs.  I think this limits most newer homes.

Online eyephone

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Re: Tesla Solar Panels Price Cut
« Reply #13 on: May 06, 2019, 01:25:24 PM »
Also, a lot can change by 8 or x amount of years. The ruling in Nevada was not favorable then it changed.

(So who knows?)

Online eyephone

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Re: Tesla Solar Panels Price Cut
« Reply #14 on: May 06, 2019, 01:26:53 PM »
Do people even consider the previous Nevada ruling? What if the energy companies lobby the Board is to change the rules in Cali.

 

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