Tesla Model 3
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Two other bits that will get the haters going:cricketo said:
Tesla has released a CO2 impact report detailing their generation of CO2 and mitigation of other emissions. It's a long report, but one simple comparison is between Tesla's solar business and its car business. Teslas have used 5.26 terawatt-hours for charging, based on miles driven and Supercharger reports. Tesla solar installations have generated 13.25 terawatt-hours of energy from the sun.
Also, new Model S cars will have a 370 mile range, more than Los Angeles to Las Vegas (and more than the range of most people's bladders.) This was achieved without battery changes - just motor efficiency improvements, software changes and bearing changes.
billvon said:
Uhhm... Well sort of but not really.
If you have 100% efficient powertrain and it takes x amount of power to sustain 60mph then a 93% powertrain will meen you need to add 7% more energy for the same distance. So lets say you need 12kw to sustain 60 mph with a 100% efficient powertrain you need 12kwh to travel 60 miles in 1 hour. But with a 93% efficient system you need 12.9kwh to travel 60 miles in 1 hour.
Yes it makes a difference but we are at a point of diminishing returns for sure.
The 100% efficient system would travel 500 miles on a 100kwh battery and the 93% efficient system would travel 465 miles on a charge. So there is not a lot left to gain.
Cephalotus
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billvon said:
Maybe someone wants to read for himself: https://www.tesla.com/ns_videos/tesla-impact-report-2019.pdf
This makes a nice comparison but is entirely irrelevant for the ecological impact of Tesla cars, as long as this solar power is not used to charge or produce Tesla cars.
Cephalotus said:
Actually its 100% relevant. Electricity added to the worlds supply that is green exceeding the electricity taken out by their products means they helped clean up the planet not just with the removal of tail pipe emissions but as well with a huge amount of clean energy on the front end.
Lets put it this way. Lets say coal power was 30 terawatt-hours in the area and now they added a demand of 5.26 terawatt-hours for the traditional Tesla vehicles but they also added 13.25 terawatt-hours of supply. Now coal power demand would be 22.01 terawatt-hours. On top of the reduced amount of dirty energy production you also have the savings of energy not making gasoline for those vehicles and you no longer have the tailpipe emissions for those vehicles and the trucks hauling their fuel.
Arlo1 said:
I think you misunderstand me. I was cautiously excited when the GF1 plans were first announced that it would be a huge, energy hungry battery yet entirely self-powered using PV. For a while now that goal looks to have slipped as an priority, but I remain hopefully it is achieved as the developed of the factory continues.
Arlo1 said:
I know it's a phased construction with room for future expansion, but the official grand opening was in July 2016 and mass production started in Jan 2017. There's roofspace for the proposed PV and ground space for the proposed wind turbines and geothermal. I don't know if the plan was always for these features to come only after expansion is over, or whether they'd grow with the factory and things are behind schedule.
Punx0r said:
Realistically it is probably a product of $$. They're just short in terms of budget at this time having multiple crazy projects going on in parallel. As soon as things stabilize and they're making a consistent profit, I won't be surprised if the solar roof magically appears.
Agreed, that's definitely the priority for Tesla Motors. I've still got a good wait for used model 3's to hit the European market... I just want to see it done - proof of awesome concept and all that. Cradle-to-cradle battery plant with full end-of-life recycling and a closed-loop energy system powering it all.
I've also seen the lack of rooftop solar used by critics of renewables, along the lines of "they promised it in the permit applications but even though they own SolarCity they aren't using PV because solar obviously doesn't work!".
I've also seen the lack of rooftop solar used by critics of renewables, along the lines of "they promised it in the permit applications but even though they own SolarCity they aren't using PV because solar obviously doesn't work!".
Punx0r said:
There is a lot of solar on the roof already.
They likey need to keep the roof open next to any other sections of the building that will be getting expanded upon for different work to be done.
There is 100s of thousands of BS things people try to use to discredit Tesla and other companies and this shit makes me sick. But all we can do is keep working on what we know is right...
Hillhater
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This does not make sense considering Tesla has a huge facility in Buffalo ( GF2) to produce solar panels but with a workforce that is largely twiddling its fingers and sweeping the floors due to lack of orders.cricketo said:
Further, Tesla is committed to employ even more workers at that solar facility or face contract penalties.
So would it not make sense to use that plant to make a few million panels etc and use the idle workforce to install them in Sparks ?
Its all internal Tesla money so no real cost to the budgets other than raw materials.
Hillhater
100 TW
It depends on your definition of “a lot of Solar” ?Arlo1 said:
By domestic RT solar standards , yes it “a lot”...but by commercial/industrial standards its hardly a token amount.
They certainly started installing in Feb ‘18, but they stopped again very soon after with probably less than 5% of existing roof space covered,..and considering we are told that the current building is only 1/3 of the full GF, that is a tiny fraction of the “Photos” shown on the GF1 facebook page
Its also pretty obvious from the latest drone fly over videos, that there is no building construction presently ongoing around GF1, nor has there been for nearly 2 years, and with the recent anouncement by Tesla that no further investment is planned until all current facilities are working effectively, its hard to see when the building , or the Solar roof, will be finally completed.
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