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Solar cost

theoldwizard1

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Anyone know what a "good" cost is for a grid tie system in kWh/$$$, especially DIY vs "installed" ?

Also any good websites.
 
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walrus

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Anyone know what a "good" cost is for a grid tie system in kWh/$$$, especially DIY vs "installed" ?

Also any good websites.
I had them come to my house 12 year payback. That was grid tied, 9600w system. Couldn't pull the trigger on that, Would have cost me 28k deduct 30% tax credit.
 
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theoldwizard1

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I had them come to my house 12 year payback. That was grid tied, 9600w system. Couldn't pull the trigger on that, Would have cost me 28k deduct 30% tax credit.

Not that I am interested in DIY, but you could buy FOUR 300 watt bare panels for less than $2,000 ! Somebody is making a lot of money somewhere !!
 

Git

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A little over two years ago when I had my system installed, I tried to price it out - DYI vs using a contractor

I would recommend opening a free account at a place like Renvu - you can literally get everything you need from there

https://www.renvu.com/

I think installing Solar is actually more roofing work than it is electrical - if you do it right. And by that I mean most of the existing roof needs to come off to properly locate your attic trusses/rafters and to flash the attachments to the roof.

The best I could estimate, and this was for a 12.48 kWh DC system (19,900 kWh annually), would save about $10k by doing it yourself

But, I believe my system was on the high end - I wanted all conduit run through the attic when possible, several plumbing stacks needed to be moved, several roof vents needed to be moved and I have a 2 story roof.

Several companies were offering a $3 per kWh which was only $6k or so above the cost of DYI

In the 2 years, my system has been operational, it has produced 43,530 kWh which is a minimum of $7,500 in electricity. Another 5 to 6 years the system will have paid for itself
 

zak77

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Not sure if this helps but the average price per panel of an installed system is about $1200, which includes everything.
 

LS6 Tommy

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I wouldn't put solar on a roof I owned if they paid me to do it. If you're looking at doing a free standing solar farm, go for it!

Tommy
 

danfromsyr

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whether solar makes cents depends on where you live.
both in the cost per Kw and the number and quality of good solar days.
then the angle/pitch and shade of your roof..

I have a 7.5Kw solar on my 50ft barn. it's 28 panels 2 tall by 14 wide
and the electrical panel in the barn with the meters, inverter, and switches takes up a 3x4ft section of wall. it was through a company with a desk in LOWES.. affiliated with LOWES.. who's now gone bankrupt and been bought by another solar company.. who is honoring my initial LEASE.. and all as I can tell is the same..
I do not monitor or look at my production.. I have no control over it.. and to me. it doesn't matter.. it's installed, its operating and it's there for a while.
mine was professionally installed and I'm happy with the installation.
but does it make cents... well sorta..

my wiring to the house was OLD.. the panel in my basement was OLD, the barn needed to have it's roof done in the next ~20years anyways..
on the install I got a new relocated panel on the house a new 200amp feeder from the utility.. I had additional work done while the electrician was on site.. so it was easier/convenient.

back to cents..
we are a family of 2, with no children, and no real electrical appliances.. gas stove, gas water heater, gas heat
and it takes a 28 panel 12ftx48ft solar array to meet 105% of our past 2 year avg consumption..

for me it was sure, why not pay someone else than the power company.. and I needed electrical and roof systems updated anyways..
while I can DIY.. I've other things to do with my time and personal energy. but I've learned that what makes sense to me, isn't unilateral to anyone else..

decide WHY you would want to do it..
is it a green venture,, research the full lifecycle of the components (carbon footprint fwiw)
is it a $$ saving venture, that depends on where you live, what your space resources are and how much your provided electricity costs.
 

jives

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We put out 8200 kW system on our roof 4 years ago. We are on pace to have it paid for in 7 more years. Our current loan payment on the system was designed to be equivalent to our former average monthly electrical statement. . . so we are not really paying anything extra on our monthly bill. Our payment is now to the solar company and not the POCO (well, not entirely).

When we put up the system on a relatively new house/roof, we knew that by the time the warranty on the system ran out (20 years, paid off in 11), we would be looking for a new roof. So, the solar comes down, installed elsewhere, and a new roof goes on. By that time, say in 15 more years, solar will be much cheaper, solar shingles may have replaced asphalt, and it will be a no brainer. The old panels should be still producing 80-90% of their capacity, and we can re-locate them on the ground, or a small barn.

Win-win.
 

danfromsyr

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for a (typical) family of 4 with a typical house roof (multiple facets/gables) limiting sun facing directions. with any/all electrical appliances.. it's not likely a payback option.

do it for other reasons..
 

Browneye

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Solar contractors are charging from $5 to $8 per watt. You can DIY for under $2.
When they come at me with their pitch I simply ask, "Can you install for $2 or less per watt? When you can or will, let me know." That usually shuts them up.

If you can pickup at a retailer like Solar Boulevard out here in CA, you can get state of the art high-volt panels for about a buck a watt. They've really come down in price.

None of it is that hard, but you should have someone experienced to help you with your design and plan, and for submitting for permits. Make sure what you plan doesn't out-match your electrical panel - my old house has a 100a panel - so either a smaller system or have a new panel installed - $$. You can go about 125% IIRC when connecting solar power.

Also, consider enough panels to tier-clip. In other words, if you have a low KW rate for a first tier, a smaller array might supply enough to keep you there, thus keeping your overall utility cost low, rather than buying big enough to supply all of your consumption. It's a balanced way to do it very economically.
 

Git

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Solar contractors are charging from $5 to $8 per watt. You can DIY for under $2.

I am not sure where you got $5 to $8 per watt? I paid $3.49 two years ago from a top of the line contractor with all the bells and whistles. Like I mentioned before, $3 per watt is pretty common and I think you would be hard pressed to get to $2 per watt unless you were using the lowest quality products

I am all for doing most things myself but when it comes to carrying 36 solar panels up on my 2 two story roof and then installing them, I will let the younger guys do it.

Also, consider enough panels to tier-clip. In other words, if you have a low KW rate for a first tier, a smaller array might supply enough to keep you there, thus keeping your overall utility cost low, rather than buying big enough to supply all of your consumption. It's a balanced way to do it very economically.

For the most part, any new solar customers in California are required to use one of the Time Of Use plans per the net metering 2.0 agreement. The tiered rate system is a thing of the past unless you were grandfathered in.

By the time you wait for solar installs to get down to $2 per watt, the 30% Federal Tax Credit will be history
 

rsanter

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Last rule of thumb I heard was under $4 per watt installed. Including all paperwork and permits

For the panels themselves they should be under about .80 cents per watt
 

bigdav160

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Anyone know what a "good" cost is for a grid tie system in kWh/$$$, especially DIY vs "installed" ?

Also any good websites.

I am going to quote someone on another forum answering a similar question about a solar install. This gentleman lived in California and did his own install

OK, here are some numbers for Randy's situation.


Since you are thinking of a ground mount, we need to find the optimum tilt for fixed panels. We are not limited to a roof pitch nor a particular orientation. For your zip code, the optimum angle is 31 degrees from horizontal. Of course, the best azimuth is 180 degrees.

You have given me a yearly electric consumption of 9586 KWatts and an average cost of $0.1638 per kWh.

We use the PVWATTS calculator to estimate the size of a system. It takes into consideration weather and geographic location to estimate solar production given a specific array size and tilt/azimuth for your specific location. It also includes an estimate of efficiencies within the electric equipment chain. This results in an estimate of 6482 watts of solar panels. This does not include any year to year variations, so folks usually spec a slightly bigger system. For now, we won't do that except to spec a system slightly bigger as solar panels are only sold in certain sizes.

We will get some costs from Wholesalesolar.com. They may not be the cheapest, but they are good.

I usually recommend SolarEdge products. With this system panel shading doesn't become a big deal. Its useful on roof mount systems so any shadows due to chimneys or tall landscaping are minimized. Also, if one panel fails, it doesn't take down the whole array.

Since you can prep the panel site to eliminate obstacles, we can go with a little cheaper system. SMA Sunny Boy is the go-to brand for home solar. They also have the advantage of having 2000W of available power in a grid-down situation. Its just a plug beneath the inverter you can plug an extension cord into, but darned useful if you need it.

You need 20 qty 350 watt solar panels, a 7000 watt inverter, plus all the nuts and bolts to make it work. This includes the racking system and has a total price of $11, 425. Shipping not included. It also does not include the racking to ground mount brackets which are an additional $800. Nor does it include the 3" schedule 40 pipe that is common on these systems. You probably need a couple hundred feet of pipe. Pipe ain't cheap either. Commodity price of steel right now is about $0.50/lb. You can maybe buy at $1.00 per pound. The pipe is 7.5 lbs/ft, so lets call that another $1500.

All in, you are at $14255 without any labor, permits, and what not.

You paid 1,570.26 the last 12 months for electricity. Assuming that is the yearly average over time, your payoff is 9 years on a self-installed system. Add in a few thousand for labor, any how you are pushing 15 years payoff if you don't do a self-install.

This assumes you have no breakdowns, storm damage, etc.

Now, there is a federal tax credit of 30%. If you claim the tax credit, your payoff is 6.4 years on a self-installed system. This is just inside the window of where I tell people that solar works for you. The average person keeps a house 7 years. So, its a good measure against pay-off. If you pay to have the system installed, add a few thousand and your payoff is maybe 10 years.

Solar gear is typically warranted for about 10 years and panels for 20 years. So, if your payoff is approaching 15 years or so, you are reaching the useful life of the system and have effectively, going to have to just buy a new one just when you are paying off.

I love solar. However, its just not a good fit for most folks. At my new home location, electricity is about 9.5 cents per KWh. Payoff would be ridiculous.
 

TangoFoxTrot

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Some of the prices I've seen quoted for a "professional" to install a system seems to me you would never make that back. Like $28,000? I would guess that's more than 15 years to pay back for most households and I doubt the whole setup even lasts that long.

Of course a state can throw enough money and subsidize anything to where it makes financial sense, problem is if the laws change. In my state they started cutting back the subsidies on solar, people didn't like the idea of their rates going up to pay for someone else's solar power.

The DIY type options though look like they could make more sense as the panels have really gone down in price.

But the ones that have a hefty price tag up front, just the time value of money has to be taken into account. $28,000 in an S&P index fund for the last 15 years is over 6 figures. That buys a lot of electricity.
 

Browneye

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I am not sure where you got $5 to $8 per watt? I paid $3.49 two years ago from a top of the line contractor with all the bells and whistles. Like I mentioned before, $3 per watt is pretty common and I think you would be hard pressed to get to $2 per watt unless you were using the lowest quality products

I am all for doing most things myself but when it comes to carrying 36 solar panels up on my 2 two story roof and then installing them, I will let the younger guys do it.



For the most part, any new solar customers in California are required to use one of the Time Of Use plans per the net metering 2.0 agreement. The tiered rate system is a thing of the past unless you were grandfathered in.

By the time you wait for solar installs to get down to $2 per watt, the 30% Federal Tax Credit will be history

Your unique situation does not cover everyone nor the average.
I found zero solar companies at $3.49/watt. Good for you! :beer:

Oh, and I pay in tier 3 for power - last month was $400, or close to 40cents a kwh. The new AC's doubled our bill. :wtf:
 
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theoldwizard1

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If you can pickup at a retailer like Solar Boulevard out here in CA, you can get state of the art high-volt panels for about a buck a watt. They've really come down in price.

First, I am not looking to go 100% solar. That is an unrealistic expectation where I live. I would like to cut my electric bill in half and get a pay back in less than 10 years. New systems are very "modular" and you can start small and easily grow.

Second is what you said !
 

Git

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Your unique situation does not cover everyone nor the average.
I found zero solar companies at $3.49/watt. Good for you! :beer:

I didn't get some special deal, that is the going rate, and I am on the high end. Just google it! Here is an example:

attachment.php


You must be one hell of a negotiator to get bids in the $5 - $8 range when everyone else is around $3 :beer:

Oh, and I pay in tier 3 for power - last month was $400, or close to 40cents a kwh. The new AC's doubled our bill. :wtf:

It sounds like you need to sit down with a reputable contractor and get some real estimates/bids. Tier 3 at this time of the year, if you are serviced by SCE, is almost 1,900 kWh in one month. That is some serious usage. How much do you spend annually on electricity?
 

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Browneye

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I didn't get some special deal, that is the going rate, and I am on the high end. Just google it! Here is an example:

attachment.php


You must be one hell of a negotiator to get bids in the $5 - $8 range when everyone else is around $3 :beer:



It sounds like you need to sit down with a reputable contractor and get some real estimates/bids. Tier 3 at this time of the year, if you are serviced by SCE, is almost 1,900 kWh in one month. That is some serious usage. How much do you spend annually on electricity?

Please don't insult. There's nothing wrong with my ability to negotiate. That's just rude and uncalled for.

Yeah, it was something like that - maybe 1700. 3 refers, 2 ac's a reef tank, tv's and computers, pool pump, etc. Normally our bill is a couple of hundred, so annual costs are in the mid-$2K.

We are on the 5-year plan to retire and move out of state. That and the 20-yo roof doesn't make sense to put panels on it. Sometime in the next few years it will get replaced for selling, but I wouldn't be in the house long enough to make panels pay for themselves.

Last time I was looking at this was a couple of years ago - so prices have obviously become more realistic. When I was looking, it was obvious that prices were ridiculously inflated - they would take the federal rebate and ADD it to the quote, then deduct it back off. Very few were what I would consider reputable. Most wanted to put panels on your roof and sell you the power they made at a fixed rate. Foggedaboudit. :lol_hitti
 
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dogdog

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Not that I am interested in DIY, but you could buy FOUR 300 watt bare panels for less than $2,000 ! Somebody is making a lot of money somewhere !!

Not sure how much leg work you wanted to do... Costco have a 5.8K system for about $10,000.... you are not just looking at the panels, other than nick nacks, there are also inverters , and you can't just use any inverters... you'll have to use those grid tie compatible ones... but it does not include installation.... so you'll have to find your own installer....and file your own permits etc... but component wise its about $1.71 per watt... which is pretty good. There is a contact you can email the re-seller to get your local installer and get a quote through them.... if you wanted... but these things it's a lot of hype and a lot of fuzzy optimistic math.... really.. so do it if you needed it, don't do it if you think you can save $$$ in long runs... at the end you won't see any ROI for a long time.... and at that time your system depreciates components wears out needs maintenance etc... also one of the solar panels types decrease output of up to 30% after the first 2 or 3 years in the sun as well....

https://www.costco.com/Grape-Solar-5830-Watt-Grid-Tied-Solar-Kit.product.100242525.html
 
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Git

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Please don't insult. There's nothing wrong with my ability to negotiate. That's just rude and uncalled for.

Yeah, it was something like that - maybe 1700. 3 refers, 2 ac's a reef tank, tv's and computers, pool pump, etc. Normally our bill is a couple of hundred, so annual costs are in the mid-$2K.

We are on the 5-year plan to retire and move out of state. That and the 20-yo roof doesn't make sense to put panels on it. Sometime in the next few years it will get replaced for selling, but I wouldn't be in the house long enough to make panels pay for themselves.

Last time I was looking at this was a couple of years ago - so prices have obviously become more realistic. When I was looking, it was obvious that prices were ridiculously inflated - they would take the federal rebate and ADD it to the quote, then deduct it back off. Very few were what I would consider reputable. Most wanted to put panels on your roof and sell you the power they made at a fixed rate. Foggedaboudit. :lol_hitti


There was no insult - note the "beer" emoji after my comment

And for you to say that you received quotes in the $5 to $8 range per watt a couple of years ago, which is when I had my solar installed, is just not believable...
 

walrus

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Not that I am interested in DIY, but you could buy FOUR 300 watt bare panels for less than $2,000 ! Somebody is making a lot of money somewhere !!

it was 32 300watt panels and it would have covered my completely shop roof. Single inverter and tied into my shop sub panel. It was quoted by a reputable . firm called Revision Energy. There isn't a lot of competition in Maine, maybe 3 or 4 large solar outfits. I happen to know one of the electricians in that company. I have no doubt they would have done a good job but yeah it was expensive
 
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theoldwizard1

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I just did an email exchange if a friend of a friend. His grid tie system has been running for over a year. Just he and his wife and they use very little power. He said his last 3 bills were NEGATIVE ! I wonder how long the PoCo will keep paying HIM !
 

dogdog

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I just did an email exchange if a friend of a friend. His grid tie system has been running for over a year. Just he and his wife and they use very little power. He said his last 3 bills were NEGATIVE ! I wonder how long the PoCo will keep paying HIM !

The Kw that he sells back is in 1/10 or 1/20 of the original value not 1:1 what poco sell you... so if you are paying .10 per kw, you'll be lucky if you get 1 cent.... It's in the fine prints... read it when you get your net meter.
 

Git

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When you get into net metering you usually are on a 12 month billing cycle. At the end of the 12 months, you have what is called the 'true up'. If you used more electricity that you generated, you pay the man. If you generated more than you used, they will pay you. BUT, as dogdog note, it's pennies on the dollar. For example, the cheapest rate for electricity in my area is about $.17 per kWh. However, my utility will only pay the wholesale rate which is about $.03 per kWh. (As I pointed out in another thread - why would they pay you more than what they usually pay for it) In July I had on paper a $440 credit and the actual check they paid me for it was around $70

Lastly, my utility (S Cal Edison) limits solar installations to 120% of the previous 12 months usage.
 

tyme2par4

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The Kw that he sells back is in 1/10 or 1/20 of the original value not 1:1 what poco sell you... so if you are paying .10 per kw, you'll be lucky if you get 1 cent.... It's in the fine prints... read it when you get your net meter.

That depends on your PoCo. Some will credit you dollar for dollar, some credit you a depreciated rate. Others give you the wholesale rate. It varies across the country.
 

dogdog

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That depends on your PoCo. Some will credit you dollar for dollar, some credit you a depreciated rate. Others give you the wholesale rate. It varies across the country.

Almost never, and it won't make business sense for PoCo's to pay you 1:1 at the rate they charge you... that is like giving $$$ away, if you actually follow this solar poiltics, this is one of those little hidden nick nacks for them to agree with the goberment to go solar... they get a piece of this pie...... unless you have a really non-profit environmental oriented PoCo... If that is the case I would see a lot more people with large mass of land jumping to Wind/solar energy generation.
 

alfredeneuman

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California solar contractors are just salivating at the fact that all new homes in 2020 and beyond are required to have a certain number of solar panels installed.
There is going to be some fierce competition, with the result being a drop in the price....or not.

I have some friends with solar and after the initial novelty wore off, they all said that they wouldn't do it again.
 

dogdog

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California solar contractors are just salivating at the fact that all new homes in 2020 and beyond are required to have a certain number of solar panels installed.
There is going to be some fierce competition, with the result being a drop in the price....or not.

I have some friends with solar and after the initial novelty wore off, they all said that they wouldn't do it again.

That is different I think, that is more like going solar with your arms twisted and guns pointing to your head....or giving you a free set dinner but charge you for an entrance fee, scheme/scam... No free lunch still... but no matter what they do, people in the PoCo business are in the business of making $$$ not running a non-profit.. None of them would agree the credit you back what they charge the customers... that would be crazy hand out...

Typical human and business behavior right...lets say for some weird reason their hands were twisted also... to give 1:1 back by the government... the initial reaction would be rise the price via hidden fees and other fees , if that still doesn't balance, raise the price to average out so the people with non solar pays more. when every one in the area have solar, I guess they would try and sell it out ? when sells out finally normalize, they would seek grants ? after all the grants dries out... I think they are SOL and go Enron or repeat the more fee, higher price cycle till they equals out or makes a profit... the wonders of monopoly. just saying... but those are the patterns I have been seeing here... not solar but other monopolies....
 
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sleek98

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I paid 2.88 a watt installed for my system. 42 panels 2 inverters running 4 legs (11,11,10,10 panels) System just got turned on yestereday.

After the 30% federal credit I am paying 2.02 a watt installed.

To me for it to make financial sense you need to have a new roof, electric rates over .10-.15 cents, get the system installed for under 3 a watt and plan to stay in the house for 15 years.
 

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tyme2par4

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Almost never, and it won't make business sense for PoCo's to pay you 1:1 at the rate they charge you... that is like giving $$$ away, if you actually follow this solar poiltics, this is one of those little hidden nick nacks for them to agree with the goberment to go solar... they get a piece of this pie...... unless you have a really non-profit environmental oriented PoCo... If that is the case I would see a lot more people with large mass of land jumping to Wind/solar energy generation.

No one expects the PoCo to profit off of residential solar. Net metering requirements are mandated by the PUC in most places. Where consumers are stepping up, the PoCos are losing some of their monopolistic control.
I do follow the solar politics daily, as it's part of my job.

California solar contractors are just salivating at the fact that all new homes in 2020 and beyond are required to have a certain number of solar panels installed.
There is going to be some fierce competition, with the result being a drop in the price....or not.

I have some friends with solar and after the initial novelty wore off, they all said that they wouldn't do it again.

This is one thing that could be interesting. There are certain areas that already require solar on new buildings, and I've seen instances where the builder is absolutely gouging the customers on price. They are only putting a 3kW system on, which barely will make a dent in your bill in some places. And they can essentially charge what they want for it.

How is not having an electric bill a novelty?

That's an executive order, that can be overturned by any future sane governor. Moonbeam Brown is not sane.

The 100% renewable bill was actually passed by the California state senate and house before being signed by the governor. The executive order was only that the state be carbon neutral as well.
The 2020 mandate is part of the building code, so the code board would have to change it.
 

Git

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I have some friends with solar and after the initial novelty wore off, they all said that they wouldn't do it again.

When I read stuff like that or someone saying that they received quotes in the $5 to $8 range per watt, I just shake my head... There is a lot of misinformation out there regarding solar

Usually, the people who wouldn't do it again have gotten into some sort of leasing arrangement where the bulk of the savings goes to the leasing company (like Solar City) and causes headaches for you if you ever wanted to sell your house

It is pretty easy to decide if solar will work for you or not. You need to know your annual electrical usage, both in kWh and in dollars. Decide how much of that usage you want to offset with solar and decide on the size of a system to meet that goal. Start getting bids.

My system has a 10 year 'production' guarantee. If it does not produce 19,000 kWh annually, the contractor has to pay me the difference and/or do something with the system so that it will meet that target. Two years in, the system is overproducing at 21,000 kWh annually and we are on schedule for the system to be paid for in another 6 years. (21,000 kWh at a minimum of $.17 is $3,570 a year) The system should easily last another 15 years after it is paid off and each year, it is putting a minimum of $3,500 in my pocket. What's not to like?

I didn't do it to save the world, I mainly did it to save me money and it will. But I would definitely not got involved in a lease
 

Browneye

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There was no insult - note the "beer" emoji after my comment

And for you to say that you received quotes in the $5 to $8 range per watt a couple of years ago, which is when I had my solar installed, is just not believable...

Yes, one of my quotes was $4.44 per watt. I would have to go dig for others, but it's been awhile and I lost interest for other reasons.

Petersen-Dean wanted $5000 to install 8 squares of 3-tab roofing too. Seems like they're one of the ones that quoted $16K for a 12K kw system. I think that's about $4.85/watt. I laughed.

Another 'contractor quoted $10K for a patio cover - I priced rough-cut fir at Ganahl's for about a thousand. $9K seems like a lot for labor. I laughed at them too. Then they started with the 'we have insurance costs, bonds, workmans comp' etc.

I've built a couple of houses, a couple of boats, a couple of cars, can do everything construction except for rough electrical and concrete finishing. I would be my own contractor before I would pay those types of rates.
 

alfredeneuman

Well-known member
Joined
Mar 3, 2011
Messages
4,590
Location
Fullerton, CA
The 100% renewable bill was actually passed by the California state senate and house before being signed by the governor. The executive order was only that the state be carbon neutral as well.

You are right, and I apologize. I should have checked into it further.

Git: About 2 or 3 out of 10 of my friends that regret their solar are on a leasing plan.
 
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