Tesla Solar Roof Easiliy Handles House And Two EVs – User Example

JUL 22 2018 BY MARK KANE 88

One of the early adopters of the Tesla Solar Roof – the Toblerone – shared insights on the system that combined with Powerwall home energy storage enables it to stay mostly energy independent.

The house is a little over 2,000 sq feet (185 sq meters), and about 40% of the roof is covered with Solar Roof tiles, which provides up to 9.9 kW of power. The cost of the Solar Roof stands at roughly $55,000 after tax incentives.

As you can see on the Tesla app screens, the results between July 2 and July 8 were:

  • Tesla Solar Roof: 394 kWh
  • Home usage (with A/C and two EVs): 285 kWh
  • Powerwall: in 106 kWh, out 95 kWh
  • Grid: 101 kWh to grid, 2.9 kWh from grid

For us it’s pretty cool to see that you can run not only a home, but also two plug-in vehicles having your own power generation.

There is no doubt that the upfront costs for now are high, but in the long term it could become a lowest cost option (in terms of total ownership costs).

Tesla Solar Roof – stats (Source: Toblerone)

Tesla Solar Roof – stats (Source: Toblerone)

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88 Comments on "Tesla Solar Roof Easiliy Handles House And Two EVs – User Example"

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TM21

That is a big upfront cost. Perhaps the house cost 100K? or 150K without the tiles (assuming it is not in a high rent area in CA). If it is in the bay area, then it is a drop in the bucket.

Nix

Or you could have just clicked on any one of the many twitter links in the story and instantly saw it is in San Jose…..

When you subtract out the cost of any comparable lifetime guarantee hail/wind/storm/fire rated premium roof product, it is indeed a drop in the bucket, and resale value of the home likely just went up by more than they spent.

Seven Electrics

Solar costs decrease rapidly over time. If the owner sells five years from now, this solar system it will be worth far less than they paid for it.

That’s why Solar city’s business model is so terrible. The goods depreciate over time, and utility scale solar will soon be cheaper than rinky-dink homeowner solar.

Mark.ca

Utility solar can be free for them and they will still sell it to you so nice try, troll! Home pv is and will always be the best medium term investment.

Bill Howland

Not sure I agree with you this time 7-electrics…… If tariffs are imposed on Chinese PV panels, American panels will naturally go up in price a bit. Solar PV panels almost always make sense in SUNNY states with high-electicity costs.

So those who bought some time ago (got mine over 4 years ago) seemed to make the right decision at the time.

windbourne

solar panels are a SMALL portion of the installed costs. It is the installation costs that are high. As such, the tariffs are a joke.

ModernMarvelFan

Depending on the size of installation.

smaller installation are dominated by installation cost, larger installation are dominated by panel cost.

windbourne

The value is not just the solar, but the roofing.
Here in Colorado front range, we get tornadoes (small one actually), loads of hail, fires, 3′ or more of snow, etc. In our home, we have changed the shingle roof 2x in just 10 years (and it was replaced 1x already when we moved in at year 4 of its life).
IOW, $30,000 has been spent replacing the roof top in under 14 years.

Tesla roofing is a GOD send that we will do once they are here.

And as to utility scale solar vs. homeowner, only an idiot would buy that idea.
Economists know better.

Mark

You can´t spend electricity for 55.000 in your life!! If, than something is going wrong way there…

Oswald

Agree it’s a lot, but he’s using 285 kWh per week, and in San Jose the avg price of electricity is ~ 15.5 cents / kWh. That’s nearly $2300 per year. So it breaks even in about 24 years, but he’s also getting a roof in there. So without complex depreciation or interest calculations, over the life of a 30 year roof, he’s getting paid nearly $14k to put this roof on instead of a different one. I think it would be way more economical to put on a regular shingle roof and then put solar on top of that, but to each their own. They look nice at least!

NeilBlanchard

The total cost for generation and transmission puts the cost higher, I think. Around here (in Massachusetts) We pay 21-22¢ / kWh delivered.

You also have to add in the savings of using no gasoline, and very low regular maintenance of EV’s.

h3x6g0n

And don’t forget the 101 kWh he sold back to the grid that week 😉

Mark.ca

He will just get it back. You don’t actually sell anything until the full year is up.

menorman

Yea, this is far more feasible in the Bay Area than other parts of the state. $55k is easily half the cost of a house in some of the smaller communities.

David

Ave house in Seattle is over $800k – this roof would work well here too 🙂

Gasbag

“Perhaps the house cost 100K? or 150K ”

Maybe if it were in Texas, Arkansas, or Oklahoma. This is in San Jose California so 1-2 mil is probably closer.

A 10kW system runs 25-30 k ballpark. The closest roofing material to this is slate. According to home advisor slate roofs run $1-8k $ per square. That is a big variance but I doubt you can get a 21 square slate roof for under $55,000 in San Jose. You could think of it as getting solar plus storage for free.

mzs112000

Looks like, someone could put a solar array that covers 100% of their roof, a 25kW system, and have their own power plant…

F150 Brian

Nope – waste of money to put solar on the shaded side of the the roof.
That’s why the solar roof is a combo of solar and non solar tiles

Mark.ca

That’s a statement that’s too general for my taste. With the exception of S all sides are shaded at some point during the day. Depending on the angle of your N facing side you can actually get good generation out of it…unless really steep of course. I have seen installs on N side when there was not enough space on other sides. It also helps to be located in a lower latitude region of course.

101101

Want to see some examples exactly like this with no grid useage or off grid disconnected or even better grid paying home owner but with this much closer to or in practice zero carbon arrangement.

Like to see this every week, its better than the Tesla drag stuff. Like to see it all tesla plus charge plates. So people can say I never have anything to do with petrol fuel energy in these ways anymore. Need to show all electric appliances too. There should be huge state incentives for the total cut.

These is a family that has been largely liberated from petrol rent seeking. No more working to subsidize criminal obsolete less than worthless permanently underwater artificial scarcity creating petrol fuel energy for them anymore. Need repeat this for every house on the planet.

Richard Giddens

This is very encouraging news. It appears the Tesla roofs will have sufficient output to handle both cars and home! Only 40% of the roof shown in this article are actual solar cells. Once competition and mass production starts, the price will be halfed in about 10 years. Just in time for the end of the service life of my roof that was installed in 1995. 25K for an electric roof? Deal!

Ed M

There’s zero roi here other than the #first factor. In order to recoop the cost you have to stay in the house forever in which case much cheaper alternatives will be available in that time. Compare the cost to just standard solar panels that almost pencil out.

Robert Quigley

Gotta start SOMEWHERE. We had very early PC which in 1983 cost $4,000 and had less computing power than an Android watch.

Joshua Burstyn

Agree. Its OK if the first adopters front large development costs.

Mister G

NAILED IT

Nix

Which “first factor” are you referring to?

The ROI numbers have to include the value of the new premium lifetime roof itself. Even if the ROI were zero, it would actually mean they were getting a premium roof for free. What is the 30 year ROI on money spent on a typical asphalt roof? (That’s a trick question BTW…)

You also don’t need to live in the house forever, the resale value of that house just went up. A house like this in San Jose would likely have a significant bidding war.

David

Perhaps you don’t realize that there is value in more than simply “solar panels.”. This is a solar option that is finally NOT UGLY. Of course looks shouldn’t matter but they do, and many HOAs won’t allow the “ugly” solar panels at all.
These are awesome!

Bryan Whitton

Sorry, in California HOAs cannot deny PV all such restrictions have been declared null and void since 1978.

Oswald

Same in Florida!

Ron Swanson's Mustache

There are 49 other states you know.

Also, a lot of people don’t want traditional solar panels because they look stupid.

Mark.ca

Not worried about what stupid people want or think.

Ron Swanson's Mustache

So wanting a solar roof system that’s properly integrated into an overall home such that it maintains the proper aesthetic is stupid?

Robert Weekley

And… A “HOA” (“Home Onerous Association” is more to reality) is just more evidence that your home is NOT Your Castle, and you Don’t Own it!

Like a “Condo Board”, they serve to basically: Limit, Control, Restrict, and Interfere With – your peaceful enjoyment of “Your Propert!”

windbourne

then do not live in such places.

Mark.ca

Yes, it’s forever for people that refuse to give math a try…
I got 8400kWh out of a 5.4kw system…so I would say he gets about 15000kWh out of his 9.9kW.
This system supplies 2 evs so if you assume 10k miles per year each, at 30 mpe gas cars equivalent you get about $2500 with CA gas prices. A house like that would pay at least $1500 in electric bills to PGE without any pv so you are looking at a minimum of $4k/year in savings. That puts the system at 14 years payout without even considering the upgraded look of the roof. I would not take this “forever” over the regular pvs (about 4 years payout if with 2 evs in my care) but i can see why some would.

Gary

I live in California central valley with apx 70, 100 plus degree days, during the 5 month hot season. Prior to solar cells those 5 months averaged about $350/month. And I am single.
A $147 /month 8k sun solar system delivered 11,900kw last year. A surplus of 3500kw.

Two grand children have been with me this summer.

This year won’t be as good. We’ve had a lot of hazy hot days. But i will still produce over 10k. Probably over 2500kw of overproduction.

I got about $97 for my over production last year. I have production guarantees. I am not responsible for anything.

I am very happy with my panels.

Mark.ca

My top cost month ever was $255 and i have to tell you that my Nest is never set under 80f in summer months. I have friends that pay $500+ on 2000sqft houses without evs so your consumption is not that bad. With the electric rates we have here in CA it’s a mystery to me why so many homeowners are without pv. This is a perfect investment for a home equity loan if one can’t come up with the money upfront.

Prsnep

$500 on 2000 sq ft home… Where do you live?!

bioburner

Yea. I live in northern Virginia with all electric house and a Volt. Never paid more than $225 a month. A/C loads are nothing compared to the heating.

Mark.ca

SoCal.
In the summer months it’s brutal! 2 weeks ago pretty much all the cities broke all time high records. Where i work was 116F!!!

David Cary

So have you included the full depreciation on your EVs since that is where most of your savings comes from?

As someone with 2 EVs and solar panels, I understand the benefit. And the benefit is greater in higher labor areas.

7 days in July (long days) produced 394 kwh in a mild sunny area. That is not equivalent to a 9.9 kw system. More like a 8 kw system by my math.

But in my area, that is a $7k asphalt roof and a $12k net solar system. If someone is trying to convince me that this is an attractive house because of the roof, I am laughing at them. It would seem to me that hail in San Jose is not common. I have seen hail in the SE US and roof damage is pretty rare (and of course covered by insurance). Funny how a slate/solar roof doesn’t come up on options that save any money on insurance here. Does the warranty cover labor and wouldn’t labor be significantly more expensive that labor+materials on asphalt?

Storage doesn’t payback in 99% (and possibly 100%) of any market in the US that is grid tied.

Gasbag

“my area, that is a $7k asphalt roof and a $12k net solar system.”

Solarsage.com puts the cost of a comparable PVA in the $18000-24,000 range while remodeling expense.com puts a comp shingle roof in the $11,000-12,000 range for the Southeatern US. That would put the cost in the $30,000-35,000 range. That doesn’t factor in the replacement cost of the comp shingle roof, the higher resale value, or storage.

If your house or mobile home is worth less than $200k than this is probably not for you. If the value of your domicile is North of $500,000 then this is not a bad option.

Oswald

Are you insinuating that someone who owns a home that is worth less than $200k is likely to be living in a mobile home? Wow get a grip. Second I think he was saying that you get a better return on your investment if you simply purchase a new asphalt shingle roof and put a solar panel system on top of it, which is true regardless of the size of house you have. Frankly this should be obvious, since there has never been an alternative to putting solar panels on to a regular roof. Now that we have these solar shingles, they are unsurprisingly more expensive than a comparable system, they only make sense if you want a more attractive roof (if you consider PV panels unattractive) or want to have the newest thing in solar roofing.

Mark.ca

SJ is mildly sunny? Ok
Depreciation of evs? Lol…you’re funny. Why should i? My eGolf actually has a ROI, why should i care about depreciation when in 10 years it will give me all my money back through gas savings.
Your “calculation” of solar output is probably flawed but without posting actual numbers we will never know, won’t we. See my numbers below.
I never mentioned storege because he didn’t need it. I guess it’s just something he wanted.
The costs are high for pv shingles retrofit, i would not do it myself either but is see the value of it in new construction.

ModernMarvelFan

How does this math compare with regular roof and then 9.9kW solar system on top of it?

I imagine that would be cheaper. Sure, solar roof might last longer than typical roof. But typical roof easily last 25 years in sunny California…

Mark.ca

Yep, it’s cheaper to go conventional. This type of roof has a chance in new constructions where the roof is the tiles.

Ron Long

I have lived on Solar and a small wind generator for 25 years. No grid tie. No Tesla wall. Deep cycle batteries. Did all the installation myself. Run 2 freezers, large refigerator, dish washer, washer and dryer, a completely normal household. No electric bills for 25 years. The current most outrageous costs are the installations. Solar panels are over half the prices I paid 25 years ago.
Never have regretted Solar Decision.

Robert Weekley

Ron “Solar panels are over half the prices I paid 25 years ago.”, I think “over”, should really mean “Under”, as in Under Half the Cost now vs then!

(But it seems “Way Under Half” would be more accurate, like, maybe 25%, or less!)

Mister G

Thank you for caring about our planet co2.earth

Ron Swanson's Mustache

WTF does “co2.earth” even mean?

Nix

It is a website.

Ron Swanson's Mustache

What is it, Time Cube for greenies?

Ron M

Well its great that California will require all new homes to have solar panels installed on them starting I think in 2020. As contractors start building these and the Tesla manufacturing plant begins mass producing them there will be a tens of thousands of these Tesla solar roofs with powerwalls installed. There’s plenty of areas where people with money want solar but don’t want it to ruin the appearance of there home.

@Stanford

The catch is that unless you’re in the outskirts or tearing a house down, there isn’t really any new houses being built in the high density areas. Predominantly condos.

Also, requiring solar panels /= requiring solar roofs. Don’t expect it will be tens of thousands of Tesla roofs.

Regular solar is still the better option for anyone whose current roof has a long useful life left. Why tear out a perfectly good roof? Wasteful.

Mark.ca

“The catch is that unless you’re in the outskirts or tearing a house down, there isn’t really any new houses being built in the high density areas.”
No catch at all! If you are from CA you know nearly all new constructions are not in high density areas but actually are farmlands being converted into subdivisions… and there is alot being built. Some builders started putting panels on new houses years ago.

Nick

Given that the roof is both a roof and a set of solar panels, it would have been good to compare to the cost of both a normal roof and standard solar panels. $55k sounds like a hell of a lot of money for the roof but how much is the actual premium? Does the cost include the Powerwall as well?

Bill Howland
Glad you asked this question Nick. Seems to be the Powerwalls are in addition to the $55,000 price ‘after incentives’. My house is almost exactly analogous to this one, (4 bedroom, 2200 sq ft, central air, hot tub, 2 heavily driven evs). 9120 watts worth of Solar panels on the back side of the roof where they won’t easily be seen. But I’m in a Northern Climate (Buffalo, NY) – they’re on the ‘wrong side’ of the house, I only have 8000 watts of inverter capacity (not a big deal at this latitude), but after credits my out-of=pocket cost after 4 years has been $8605. I have no storage (illegal for me to do so in my state), but I do have net-metering – meaning every bit of solar power is ‘productive’ financially speaking, and I haven’t had anything more than the minimum $16 charge per month for over 4 years now. I’ve made around 36,000 kwh, the first year “GIVING” the utility back 2/3 rds of the juice since I must use up any credits yearly, but I’ve purposefully increased my electric consumption so that the unused amount is now trivial. Assuming I’ve effectively utilized 30,000 kwh of what… Read more »
ModernMarvelFan
394kWh during the peak generation month over 7 days for a 9.9kW system is a bit low. I have a 3.3kW system and I also live in SF Bay Area and my system generated about 148.6 kWh in the same period. 3x the system should generate about 445.8 kWh. It looks like the solar roof generation efficiency is slightly lower. Then again, it would be hard to compare unless we know how the “Local weather” condition was during those 7 days compared with my location since it can easily change by 10%. Now, the question is that how much tax incentives paid for the entire system. Did the tax incentives pay for 1/3 of the roof or 1/3 of the 9.9kW part of the cost? I wonder if IRS would object paying for 1/3 of the entire roof. For example, if the entire roof cost $80K, but only 20% of it are covered by solar cells, then will tax incentives pay for 1/3 of the $80K or 1/3 of $80K *.20%. If incentives are paying for 1/3 of the overall system installation cost, then it is a great deal for owners but I can imagine that at some point IRS… Read more »
Mark.ca

June is peak month. Here are my numbers from a 5.4kW system:
06/01/2018 – 06/07/2018 4.54 kW 234 kWh
06/08/2018 – 06/14/2018 4.20 kW 244 kWh
06/15/2018 – 06/21/2018 4.34 kW 223 kWh
06/22/2018 – 06/28/2018 4.23 kW 232 kWh
06/29/2018 – 06/30/2018 4.06 kW 60.2 kWh
June 2018 Total: 993 kWh

His efficiency is slightly lower but not by much. 15% can account for latitude (Socal vs SJ) and weather alone. I gotta say, the tiles are looking good from all angles.

Milky

If I were rich…

Sure this is great but it’s for the %1

Coal is better

William

Coal generated electricity may be a better short term value, in terms of financial cost to the end user, but the huge negative externalities of coal burning, will be around for a long long time, after your electricity has been briefly utilized.

So the early adopters (1%) in the transformation to renewable electricity, for the grid as a whole, are thinking ahead, with their head, not their wallet.

California is going to be at almost a third renewable electricity production, if it isn’t already, and Andrew Wheeler, and his latest Coal Ash debacle, can hopefully use your state to dump his unwanted waste and mine tailings into, in perpetuity. Please be sure to Thank our POTUS “Pollute-US” tRump, for turning your region into a filthy toxic Coal Dump.

Dante

Really? How much is a coal-powered roof?

Mark.ca

No, no… with coal you put it under your house…and then you set everything on fire.

William

The implementation of your “under… house” Coal ignition HVAC system, is one heck of a way to save on those soaring summer A/C utility bills!

Mark.ca

Revolutionary one might say 🙂

Mark.ca

IEVs, what’s up with your comment filter? Why is it deleting regular comments?

Terawatt

Free speech isn’t that popular on sites that are in the business of delivering an audience to their advertisers (paymasters).

I’m starting to think advertising might be the root of all evil.

Mark.ca

Relax skippy, I wasn’t talking about that. Regular comments that are not in any way offensive and are on topic seem to be held by moderation sometimes…maybe it’s just me.

Will

Yelp I posted several comments on the topics and they been deleted

Don Zenga

This seems to be a very old style house with roof over garage at 1 level and the roof over upper floor at another level.

Some of the sunlight that beams on lower level panels could be blocked by the shade of the upper floor and may not be much efficient.
In a typical modern home with just one set of roof, the efficiency will be much higher and they may be able to power even 3 EVs.

Or to put it the other way, the home may need only 7 – 8 KW cutting the cost drastically.
Lets hope some other company may provide a system like this at a much lower cost.

Mark.ca

Maybe the future house will be built with solar in mind. We could have a 2/3 and 1/3 split roof with the 2/3 be oriented towards the S at a angle that corresponds to the latitude were the house is being built. Maybe I’m expecting too much from humanity…

ElectricGuy
Tesla is an international company. Most of the discussion in this forum is from a California perspective. In a cold weather climate a solar roof plus battery storage has additional return on investment. Green Mountain is installing battery storage in New England. During an ice storm the electricity can be cut off for days at a time. A house can freeze in as little as three hours on a windy day. Anybody who has ever had to repair a frozen building knows that the freeze damage can almost exceed the value of a house. When the payback of electric production is added to the freeze protection the return on investment can be as short as one cold winter day. Around here some home homeowners have been installing natural gas emergency generators to account for power loss during storms. They provide no daily savings. Solar panels or battery storage save money every day of the year. It is difficult to quantify the savings but everything that is discussed in this forum about electrical cost savings in warm climates is multiplied many times over by the potentially life-saving benefits of freeze protection in colder climates. In my opinion Tesla is on the… Read more »
Ron Swanson's Mustache

This is an interesting perspective. Has anyone studied this? I’d be curious to know how a solar + battery system would work under such harsh conditions. Do the low temperatures negatively impact the storage capacity of a battery system like a Tesla Solar Wall? Also, in the event of a serious winter storm, what do you do about snow cover on the panels? Do they continue to generate useable amounts of power, or do you have to go out and clean them off?

Bill Howland

Hehe, I don’t know where this guy lives, but he’s obviously not in Buffalo , NY where I am. I had ZERO solar output for almost 4 months straight last year, and even a basement full of powerwalls would not have carried me through to where the sun shown on the panels again once the thick layers of ice and snow melted off them. I had almost zero output for 5 months of the year, but since net metering IS legal here (batteries are not if you take advantage of NM), I still only had $16 minimum charge bills due to the credits I built up in earlier months. But my point here is, even though my SOLAR GENERATION is basically seasonal (only worked SEVEN months out of 12 last year), it still made more electricity on an annual basis than I used for 12 months combined.

ElectricGuy

Buffalo NY is about the most extreme winter with more than average snowfall we have in the 48 states. A general assumption is that on a cloudy day most solar roofs generate 20% of their rating. If your panels are covered with ice and snow for 5 months than I assume you do not clean the snow off. If the power was out for three days is it not feasible there might be sufficient motivation to find someone to get on a ladder and clean off the snow? Tesla is contemplating putting heaters in their solar tiles. Incidentally is it zero output or just low for four months? 20% output might be enough to power a furnace motor or small electric heater to keep pipes from freezing.

Ron Swanson's Mustache

No rational human being is going to climb a ladder onto an ice covered roof in the middle of winter.

Ron Swanson's Mustache

Thanks for the dose of reality. I’m all in favor of using green energy solutions where it’s reasonable, but I think some people have a tendency to attribute magical powers to them.

Sparkinator
I think you should size your solar PV system to generate enough power for you to cover your yearly electrical usage. For me thats about 1.5 MWh per month. My house is about 2,200 sq. ft. I have 2 EVs. The house is 2 years old, 100% electric (no Natural Gas). For me in norther Oregon that was an 18 kWh system. My utility company allows me to bank over production in the summer to cover under production in the Winter. Last month I generated 2.69 MWh. And, I generated about 525 kWh in December. The system cost me $39k before incentives and was installed for me last June. The hardest part was to find a solar installation company that could provide me the numbers – Its rare to find a solar sales person with enough understanding and experience to tell you what it will take to run your house and how many panels that translates to. It sounds simple, but its worse than you’d think. I would love a Tesla PowerWall for emergencies, and I disagree with Tesla’s and nearly every other solar PV company’s philosophy that you should only generate about half your yearly needs. Tesla’s Solar Roof… Read more »
vdiv

Has Google abandoned Project Sunroof? https://www.google.com/get/sunroof
It still “hasn’t reached that address yet”. Perhaps Tesla and other solar installers can pickup the effort.

FreePat75014
Something is strange in the maths here. 185M2 of roof populated at 40% with active beautiful TESLA Solar shindles, means 74M2 of active solar surface. If that was set with excellent 22% SunPower panels of 1.6M2 each delivering 360Wp = 0.36kWp each, it would use 46.25 such panels that would be delivering 16.65kWp of peak power. How can that set with Solar tile supposed to embed Panasonic best solar cells also rated # 22% efficient, only deliver 9.9kWp ? (Plus not sure where you found this info that TESLA is never clearly stating on their WEB…) This is only 60% of the peak power expected for that surface. The loss of 40% here is very worrying for my retirement home project in the south of France. I was expecting -2% to maxi -20% loss only vs best panels, depending the orientation of the roof vs optimum. Is that -40% loss due to a very bad roof orientation ? Is it not NOT FULL SOUTH ? Or is it the very small angle vs the horizon that it seams to have vs a #30% optimum in my area ? Or is it the tint of the tempered glass of the solar… Read more »
Martin Lacey

One hot week in the summer may give an overly optimistic reading of what can be expected on an annualized basis. Will they still be able to heat/cool the house and run two EV’s in winter?

Yes I know it’s in California and the winters are relatively mild.

Bill Howland

See my comment above – I only had solar generation for 7 months of the year last year. I still , for accounting purposes, buy no electricity from the power company since for 5 months I run off credits I have built up over the summer and fall.

My system was also somewhat ‘Illegal’ in NY State, since initially it was claimed my system had 300% of the panels considered legal. But I’m glad I tripled the size of the system anyway, since it allows me to run the full year without paying anything other than minimum charges to my utility.

NeilBlanchard

We recently got a 10.1kW solar PV system installed (conventional panels from Sunpower) and the installed cost was $38,500. We are planning on a battery system in the future. The solar PV system should pay for itself in about 5 years. You can’t get that kind of return anywhere else.

It will only cost more per month the first year – after that, our monthly costs will be lower than we paid for electricity. SREC’s are a big part of this. And we’ll be able to take our tax credit next year and apply it to the loan, which gets reamortized.

We also drive two EV’s, and we use more electricity than the people in the article use. We use our mini split system for both heat an cooling – heating takes a lot more electricity than cooling.

Remember that we save more than just on electricity – we buy gasoline only for our third car. And the EV’s cost virtually nothing for regular maintenance.

Re-Volted

If I borrow money to pay for a tear off and solar roof the real question is what’s my payment. Tax incentives are nice for only one year and don’t effect that payment. A re-roofing and panels would probably be $35k for my 1200 sq ft. And my electric bill looks like about $150 average. Wonder if Tesla can match?

3laine

So… how much would a normal re-roof plus a 9.9kW solar panel system cost on *this* house?

Personally, my house is a similar size (2,100 sqft) and we re-roofed it 2 years ago for $12k and then put a Tesla Solar PV system on it a couple months ago for $20,000 after incentives, and that’s an 11kW system.

So, my total is $32k. Of course, I’m in FL, and this house is in California, so prices are likely higher there. There’s also the consideration of how much longer this roof should last than my shingle roof, and then whatever value one places on the aesthetics of the solar roof, but it would be interesting to get an apples-to-apples price comparison for this system vs. a standard re-roof and panels.

MTN Ranger

I had my roof replaced less than two years ago with high end asphalt shingles and it came to less than $8000 (3k sqft roof). Yes, it’s crazy expensive for the Tesla roof tiles. I’d rather just get a regular system at half the price.

Mark.ca

Lol…you are comparing asphalt shingles to slate? If you need a basic roof then by all means choose asphalt and replace it every 30 years. These people with fancy expensive houses are guaranteed to at least have ceramic tiles at a minimum. In my city the houses are built with ceramic since all new constructions cost well over half million.

ModernMarvelFan

“The house is a little over 2,000 sq feet (185 sq meters), and about 40% of the roof is covered with Solar Roof tiles, which provides up to 9.9 kW of power. The cost of the Solar Roof stands at roughly $55,000 after tax incentives.”

did the tax incentives pay 1/3 of the entire roof cost or only 1/3 of the 40% of the entire roof cost?

I am guessing it is paying for the entire system cost. But I wonder if IRS would soon object to that as solar is smaller portion of the entire roof..