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(WTVR)   73-year-old cattle farmer creates his own electric car. Meet the Lightning Bug   ( on.wtvr.com) divider line
    More: Cool, Volkswagen Beetle, cattle  
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9165 clicks; posted to Main » on 21 Aug 2013 at 11:48 AM (4 years ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»

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2013-08-21 02:37:45 PM  
1 vote:

rwfan: Where did you get your numbers from? How many square feet of solar do you need to charge your electric vehicle and for how long.

I've got solar power up the yin-yang these days, powering almost every aspect of my life, so it's a little hard to breakdown the square footage required purely for my car. I can give it a try through!

My home's rooftop, 3.8KW covers 100% my heating and home energy needs, it also provides all the energy required for my 25 mile drive to work:
fbcdn-sphotos-g-a.akamaihd.netView Full Size

My work's rooftop - 13.6 KW (not including 3.6kw awning array): Covers about 20% of the total annual energy needs of the office & all of my car charging at work.
sphotos-a.xx.fbcdn.netView Full Size

The community array the office bought into (5% ownership), about 1.2KW: Covers an additional 5% of the office's energy use.
djc.comView Full Size

The rooftop at the vacation house3.8KW: Provides 3x's the energy of the home's electricity need (it does have nat gas heat and water though).
fbcdn-sphotos-c-a.akamaihd.netView Full Size

The community array & small wind tied to the vacation house (2% ownership, about 2KW): Powers any of my trips to and from the vacation house.
wacleantech.orgView Full Size

Additional small wind added at the community power array. Annual output is currently unknown, as it's quite new.
bloximages.chicago2.vip.townnews.comView Full Size

We're thinking of buying into another 3.6KW of a new city community solar array at the office in the coming weeks. So to figure out where I get all of my car's energy needs and exactly the square footage isn't exactly a simple question.

Most simply is that I drive 50 miles a day and 250 miles a week - my driving efficiency is 4 miles per kwh; meaning I use 62.5 kWh of energy a month to power my car. Between the share of the energy sources above, they generate an average of 80 kWh a day . . . or 2,480 kWh a month. I still need to roughly triple our renewable production at the office to get close ot meeting 100% of the energy needs of our servers and 30 employees.

Considering I'm doing this in cloudy Seattle - it would be a lot more simple to pull off in LA, Vegas, Dallas, or Orlando - where there's ~2x-3x's the amount of sunlight.
2013-08-21 12:05:09 PM  
1 vote:
So, did he start with a crapped out bug or did he ditch the fenders and rear end for weight reasons?
2013-08-21 11:55:19 AM  
1 vote:

Witty_Retort: Neat.

Yes.  It's neat.  It's also something that people do thousands of times a year around the country.  Not worthy of a greenlight IMHO.
2013-08-21 11:51:52 AM  
1 vote:
Is Lightning Bug a spin off of Fire Fly?
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