4.7.09 Uber Entrepreneur: An Evening with Elon Musk
Video Statistics and Information
Channel: ChurchillClub
Views: 127,432
Rating: 4.8226371 out of 5
Keywords: Churchill Club, Business, Technology, Innovation, Silicon Valley, Uber, Elon Musk, Tesla Motors, SpaceX, SolarCity, Michael Malone, Author, Wall Street Journal, New York Times, Commercial Software, Blaster, Zip2, Entrepreneur, Business Strategies
Id: n1j0yHOxcL0
Channel Id: undefined
Length: 92min 59sec (5579 seconds)
Published: Wed Apr 08 2009
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I believe the thought was that the gain in solar benefits in even unrealistic conditions did not provide enough benefit for follow through on this idea.
I am currently on a solar car team, and to be perfectly honest, the amount of power generated is so minuscule that it's not worth the effort. 1 m2 of solar panel will give you maybe 200W of power, which is a few percent of total power consumption for a commercial vehicle.
If you keep listening to that talk he also quotes the Model S price as about $50k. A lot has changed since then.
Ford made a concept: http://www.autoblog.com/2014/01/08/ford-c-max-solar-energi-concept-ces-2014/
With the help of a canopy/lens charges 21 miles in a day.
Also, what is he talking when he says "And cook the whole car with some kind of amorphis...??" I couldn't hear what the last couple words were.
The power density of sunlight is about 1.36 kW/mยฒ.
Assuming 4 square meters and 20% efficiency, that's about 1 kW.
1 kW = 1 kWh per hour, so you can see why putting a solar panel on top of a car isn't really worth it.
Theoretical 100% efficient solar panels would only give you a ~5x improvement on current state-of-the-art panels.
Maybe someday we will see windows and paint being transparent solar cells with 50% efficiency which can be produced at low-cost and cover the whole car.
If we assume 10 mยฒ @ +50% efficiency and 1kW / mยฒ of energy coming from the sun for 5 hours - that'd be 25 kW of converted energy and +50 miles per day - pretty amazing but unrealistic at this point (maybe in 10 years?).
I agree though, that even less powerful small solar panels (instead of the panoramic roof?) would be a cool add-on but I think Tesla should use their resources to concentrate on more important things at the moment and add solar panels + other cool features when it makes sense.
Here's the blog post from 2006 where then-CEO Martin Eberhart explains why they dropped that option from the Roadster:
A month later, Elon and Martin made a joint blog post where they got pretty deep into the technical details of photovoltaics. The relevant section:
Interesting that Elon is mentioning it in 2009 in relation to the Model Sโฆ
So that u can charge the car 100ft of range in an hour?