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Old 10-20-2022, 05:07 PM
 
Location: Newburyport, MA
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Quote:
Originally Posted by matrix5k View Post
Yes these are all quotes without batteries. Batteries are another 15k and 2.2k for a heavy loads panel.
Yes, battery storage cost is quite significant in its own right. If backup power is desired for utility outages, I think you could get a propane-powered standby generator with a transfer switch for half that price. Generac has a 14kW propane generator with transfer switch for MSRP $4.9k.
https://www.generac.com/all-products...h-wifi-enabled
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Old 10-20-2022, 05:15 PM
 
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There are incentives that lower the cost of the battery, I figured from about $15-17k to about $7-8k, but decided to pass for now. While solar technology progress seems to have tapered off I think there’s still a bit more to go with batteries.

And yeah ^ the alternative is much cheaper for something I might use once a year.
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Old 10-20-2022, 05:19 PM
 
Location: Newburyport, MA
12,430 posts, read 9,529,208 times
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Quote:
Originally Posted by simplexsimon View Post
There are incentives that lower the cost of the battery, I figured from about $15-17k to about $7-8k, but decided to pass for now. While solar technology progress seems to have tapered off I think there’s still a bit more to go with batteries.

And yeah ^ the alternative is much cheaper for something I might use once a year.
The only pricing I saw for battery power was something like $8k for 10kWh of storage, which isn't much - that's a modest 2kW for just 5 hours. Heck, a Tesla Model Y Long Range Performance EV has 82kWh of battery. That Generac generator puts out 14kW for as long as you have propane, and it only costs $4.9k.
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Old 10-20-2022, 07:51 PM
 
2,710 posts, read 1,733,872 times
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Quote:
Originally Posted by OutdoorLover View Post
The only pricing I saw for battery power was something like $8k for 10kWh of storage, which isn't much - that's a modest 2kW for just 5 hours. Heck, a Tesla Model Y Long Range Performance EV has 82kWh of battery. That Generac generator puts out 14kW for as long as you have propane, and it only costs $4.9k.
I doubt it costs only 5k to have one of those things installed. You need a plumber, electrician and permits. That's at least 10k in the Boston area, if not more. Aren't these things very loud too? I heard one before and it sounded like a snowblower. I'd hate to live next door to one of those running at 3am. At least a battery is silent and you can make some bucks back from it.
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Old 10-24-2022, 06:48 PM
 
1,298 posts, read 1,332,972 times
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Quote:
Originally Posted by GeoffD View Post
You also have to design the house for a metal roof so you don’t kill people as snow & ice slides off the roof. You have to put doors on the gable ends or build entryway roofs. I destroyed a Weber once not thinking about ice sliding off the roof. You can’t have gutters. You can’t landscape at the edge of the foundation since it gets destroyed. You have to pay attention to parking areas so you don’t total your car.
Snow guards over entrances work fine, and you can have gutters with a metal roof, I have them.
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Old 10-24-2022, 06:50 PM
 
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Quote:
Originally Posted by matrix5k View Post
I had a quote from Invaleon back in March and it was $3.25/watt for me They said my roof could fit 25 panels max for 5.9kw system and I would have 90% offset. It would have cost around 34k. The other companies said I can fit 32 panels for around 10kw system and the cost was around $43k+, so I'm not sure why it's so different. Tesla is around $29k for a 12kw system.
Woa I paid 26k for a 6.4kw system with high quality all black panels.
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Old 10-24-2022, 09:28 PM
 
Location: Newburyport, MA
12,430 posts, read 9,529,208 times
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Quote:
Originally Posted by matrix5k View Post
I doubt it costs only 5k to have one of those things installed. You need a plumber, electrician and permits. That's at least 10k in the Boston area, if not more. Aren't these things very loud too? I heard one before and it sounded like a snowblower. I'd hate to live next door to one of those running at 3am. At least a battery is silent and you can make some bucks back from it.
That 14kW generator is rated at 65dB at normal load, and quieter at half load of course - noisier than a battery, but not *that* noisy.

In Mass, the power is not normally out for that long, which is a good thing, because batteries that would carry the house for 24 hrs at 10kW would cost a pretty penny.

How does buying batteries make you money?
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Old 10-25-2022, 03:46 AM
 
1,540 posts, read 1,125,554 times
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Quote:
Originally Posted by OutdoorLover View Post

How does buying batteries make you money?
Couple ways through Eversource's SMART program:

1) a little bonus on top of the base compensation rate (10-year program)
2) payment for drawing from your battery during times of peak demand (5-year program)
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Old 10-25-2022, 05:26 AM
 
2,710 posts, read 1,733,872 times
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Quote:
Originally Posted by semiurbanite View Post
Woa I paid 26k for a 6.4kw system with high quality all black panels.
When? Maybe I'll ask them again if prices ever come down.
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Old 10-25-2022, 06:16 AM
 
1,540 posts, read 1,125,554 times
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Quote:
Originally Posted by matrix5k View Post
I had a quote from Invaleon back in March and it was $3.25/watt for me They said my roof could fit 25 panels max for 5.9kw system and I would have 90% offset. It would have cost around 34k. The other companies said I can fit 32 panels for around 10kw system and the cost was around $43k+, so I'm not sure why it's so different. Tesla is around $29k for a 12kw system.
I went back to my contract to look and I was mistaken, it was more like $3.04/watt (almost $28k for a 9.2kW system), I was looking at warrantied output rather than the system.

Your quotes were astronomical. I signed the contract at the end of April 2022, so around the same time as you - I'm not sure why the difference is so huge.
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