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Solar Roof

tesla.com

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Re: Solar Roof

#411

Post by MagnumOpus »

jhall1468 wrote: post #193
canterburry wrote: post #149

Earlier quoted context omitted.

Exactly...cost was supposed to be a new premium roof (just the roof, no solar panels) and they are about 3 times more expensive than "just the roof". Unless they meant a "new roof" as in when you build a house from scratch and you don't have rafters or anything. If you have an existing roof you are redoing every 20 years or so, then this is definitely not the cost of a "new roof". So, which "new roof" are we talking…

> cost was supposed to be a new premium roof (just the roof, no solar panels) That makes very little sense. You're making an apples to oranges comparison here. It would be absolutely impossible to pull that off. It's literally the premium roof + solar and you want it to be the same price as premium roof (thus, you want the solar hardware to cost nothing. Only one of these generates electricity, thus saving you money…

> It would be absolutely impossible to pull that off

And yet it was promised by Musk. Literally "a solar roof will actually cost less than a normal roof before you even take the value of electricity into account".

Don't attack your parent poster for Musk's lies.

Re: Solar Roof

#412

Post by crdoconnor »

kristofferR wrote: post #391
jpatokal wrote: post #248

Earlier quoted context omitted.

Why so? California's climate is pretty optimal for solar generation and there's a lot of desert waiting to be covered in solar panels. Solar is not going to have a similar impact on (say) Ireland in the next 30 years.

More solar will likely result in higher grid energy prices, since people will buy a lot less energy while the grid costs the same to maintain.

Usually when there is additional competition (grid owners generate and supply electricity), markets respond by dropping prices.

This might also be why utility companies have been furiously lobbying against rooftop solar subsidies and Barclays have downgraded US utility bonds.

Re: Solar Roof

#414

Post by theandrewbailey »

tomaskafka wrote: post #389
tlb wrote: post #75

Earlier quoted context omitted.

It's the right question to ask. Home electricity costs around $0.15/kWh, while power plants sell electricity to the grid for around $0.03/kWh. The difference pays for installing and maintaining the grid and local distribution wires to your home. Depending where you are (I live in a forest, where a tree falls on the power lines a few times a year and they have to send out guys in a bucket truck to fix it) it's expensi…

My electric costs are 0.035 USD/kWh here in Europe (Czech Republic). Wth is wrong with the USA? It seems like you're getting screwed over everything. 10x electricity, 100x healthcare and education - is US market really just a bunch of colluding monopolies?

Electric rates in the US vary widely. The $0.15/kWh rate sounds like California prices, which are notoriously high compared to other parts. Less urbanized states have lower rates, except Alaska and Hawaii.

https://www.eia.gov/electricity/state/

Re: Solar Roof

#415

Post by InitialLastName »

waynecochran wrote: post #219
phonon wrote: post #77

Earlier quoted context omitted.

Doesn't the Tesla roof last substantially longer? Like maybe 2-3 times as long as asphalt ?

From the description: Solar Roof is the most durable roof available and the glass itself will come with a warranty for the lifetime of your house, or infinity, whichever comes first.

> Solar Roof is the most durable roof available and the glass itself will come with a warranty for the lifetime of your house, or infinity, whichever comes first....

... Or 30 years. You know, whichever comes first.

Re: Solar Roof

#416

Post by xj9 »

ceejayoz wrote: post #350
xj9 wrote: post #338

Earlier quoted context omitted.

increased risks of nuclear war you do realize that initiating nuclear war is suicide, right? the u.s. took advantage of the only chance of actually using one because they were the only nuclear power at the time.

> you do realize that initiating nuclear war is suicide, right? Given there are plenty of suicidal humans, that's not entirely comforting.

you don't need to consider the entire set of humans, only those with the ability/drive to obtain enough power/influence to gain control over a nuclear weapon.

Re: Solar Roof

#417

Post by matthewdgreen »

celticninja wrote: post #399
bionsuba wrote: post #374

Earlier quoted context omitted.

Because unless you go with a metal roof that's a pipe dream.

I live in a house built in the early 1900's with the original slate tile roof still on it and it's in decent shape.

I live in a neighborhood full of slate tile roofs and tile replacement is a fairly routine occurrence. Are you positive that no tiles have been replaced in the past 100+ years?

Re: Solar Roof

#418

Post by raggi »

Matt3o12_ wrote: post #63

Does anyone understand how the warranty works? From their solar panel page[0], it says that there is a 30 year warranty for Power and Weatherization and a lifetime warranty. So, what does the lifetime cover? The only thing that can go wrong is that either the power module fails or the tile is damaged due to weather, which is both covered by the 30 year warranty. Nevertheless, a 30 year warranty is still pretty impres…

I think the weatherization is under the tiles. I'm not sure what they'll be doing, but I imagine there will be forms of some kind under the tiles to cope with wiring concerns and alignment, and there will be weather protection underneath those forms. Some of the weather sealing will fail, same as the tar/sheeting does on conventional roofing. The tiles should still be good, so the main cost after 30y should be labor to re-seat and re-seal, and the optional replacement of any failed solar tiles.

Re: Solar Roof

#419

Post by ceejayoz »

xj9 wrote: post #416
ceejayoz wrote: post #350

Earlier quoted context omitted.

> you do realize that initiating nuclear war is suicide, right? Given there are plenty of suicidal humans, that's not entirely comforting.

you don't need to consider the entire set of humans, only those with the ability/drive to obtain enough power/influence to gain control over a nuclear weapon.

That bar seems to have lowered substantially a few months back.

Re: Solar Roof

#420

Post by webXL »

sliken wrote: post #330
atourgates wrote: post #31

Earlier quoted context omitted.

I don't really see the selling point, or value here. Tesla's calculator estimates $40,500 for a roof that generates half our power needs, and should provide $20,400 worth of energy over 30-years. Add in a PowerWall and federal tax credit, and I'm still losing $15,400 over 30-years. If I put that same $40,000 in an index fund that got the stock market's historical 7% average, and waited 30 years, I'd have $308,000. To…

Don't forget the tesla $40,500 includes a roof AND solar. To for a fair comparison you have to include the cost of roof and solar for the next year. Your mentioned other system for $20k that handles 100% of your need doesn't include the roof.

> includes a roof AND solar

...and the cost to remove your current perfectly good roof! I think I smell a bargain!

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