Renewable Energy

reikiman's picture

Electric cars running on solar power? Great conceptually, but not so great in practice

Over on linked-in someone asked: Cars should really run on solar, it is free to tap and unlimited.

Started an interesting discussion thread. Basically many have this idealistic vision of clean cars being powered by cleanly generated energy and we'll all live in a nirvana of clean technology. You often see wind turbines and solar panels in the background when electric cars are pictured.

Here's some things from the thread:

"The fact that virtually no production electric car comes with a solar panel is outrageous."

"There is no point in lugging a PV panel around. "

"If we look at the three biggest detriments to electric vehicles today its: Range, Battery Cost & Weight. All three are improved substantially with solar. " (written by a guy claiming to have run the first solar car race in the U.S. who said later in the discussion he's an entrepeneur who will shortly be launching Eco Urban Vehicles)

"I am surprised that you don't know that there is no range problem anymore. The quick-charge batteries charge to 100% in 4-6 minutes, so you can almost charge on the fly. "

"Quick change batteries are great but not currently available in 99.9% of the world and won't be for a long time. Unfortunately, the vast majority of power charging those quick change batteries is still going to come from fossil fuels and nuclear."

"there is no doubt that an infrastructure will appear to quickly juice batteries. But this will come from existing utilities, generally speaking major polluters and will cost.
A far cry from energy independence.
"

"So if this amazing clean, cheap technology exists, what keeps the car companies from adopting it?"

"Existing car companies are wedded to the existing system. From extracting oil beneath the ocean floor to catalytic converter exhaust systems, they're committed to transportation as it is."

"Before looking for a conspiracy you all should understand that there are only about 100 Watts per square foot per HOUR in full sunshine. With a footprint of 6'x15' a small car can only collect 9,000-10,000 Watts per hour. That is not enough power to go 60-80 MPH even while the sun shines. We will need good batteries to make solar cars work."

"Electric cars are cheaper to build, run and dispose of than gas by a factor of 2 or better. Solar is cheaper than natural gas or nuclear electric even though they do not pay for their cleanup. Solar is cheaper than any non-renewable energy. Coal kills people 20 per 100,000 per year in the East, 5 per 100,000 per year in the West."

"Thanks in large part to GM, in this country at least, solar vehicles are deemed impractical. Smart, well meaning, educated people will repeat that. But how many people in this country, or engineers or people in this group know that the MPG record is 12000+ MPG? Ask your mechanic, Engineering Professors, Environmentalists and see how many know this. I'll venture to say none.I have never come across anyone outside of a SMALL circle of professionals that come anywhere close. The question is, "Why is that"? Makes a great cocktail party question."

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Use a solar power panel to reduce your electricity bills.

solar power vic panels have proved to be an efficient method to reduce your home electricity bill. By doing so, you can save a lot of your hard-earned money. How is it possible? We know that daylight is the sole need to generate Solar Energy. This light is picked up and processed by solar system to create electricity for your needs.

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Generating Electricity from home

Hello again,

my second posting, this time about the above subject.

You may recall I said in my last posting that my husband is a bit of a d-i-y (er).

When looking around for a clutch for my electric mobility scooter (thanks for all the advice by the way), he came across an article that showed how to generate electricity at home using magnets! I'm not convinced that it's possible so I'm asking knowledgeable people like members of the forum for their opinion.

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suely1's picture

ultracapacitor is the new green products

Last year i had knew the ultracapacitors and buy some for the meter for backup time ,oh ,that's better than battery ,though the price little more than battery ,but ultracapcitor can charge and rechange the life more than battery . i believe after days the ultracapacitor will replace the battery.

I know of my supplier,her name is suely ,who worked in a special manufacturer of ultracapacitors in China . There are many types supercap,2.5V 0.1f ~2.5V3000F ,5.5V0.1F ~5.5V4.0F .

If everyone interested in this ultracapacitor ,pls contact her with email.

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72vdc input on my 48vdc solar charge controller/inverter

I have an Outback Power ystems model 3648 grid-tie (or grid interactive)inverter with a 48vdc battery back up system.

I want to add a 72vdc wind power generator and thought I needed to add another charge controller to handle to input. I was told today by a solar guy that I could hook the 72vdc from the wind turbine directly to the batteries because the excess power created at the batteries will be converted instantly to 120 vac by the inverter and will be sent to the grid.

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Hello and Seeking Members Interested in Global Energy Assessment

Hi all,

Great to know there is such an active forum in India to articulate its energy future and sustainable living initiatives. Incidentally, I returned back to India earlier this year following a long innings at CERA. My interest area is on World Energy Assessment and how the results hold pertinence for India. Please connect with me directly if any one in the group's membership shares the same interest.

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36v regulator for pedal powered generator

Need parts @ plan to to build 36v regulator for pedal powered generator. Intend to use 200w PM scooter motor hooked up to bicycle.The
bike has 36v battery pack @ 1000w motors.Want to extend range with pedal power generator and double as exercise bike.

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Solar cell efficiency

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rossasaurus's picture

Plug 'n Play(almost) Wind Generator

Pretty slick setup. $5k
Pour concrete base, winch it into place and plug it into an outlet on your house circuit. This could charge an e-ride quite nicely.

http://www.mariahpower.com/

Specs:
http://mariahpower.com/index.php?option=com_content&task=view&id=100&Itemid=240

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