Re: pic: MARS 1523: Our New Tesla
 

Haha! It's not ours, but one of our member's dad works for Tesla, so he has a corporate car. And no, it's not photo-shopped. And while our robot is rather low tech compared to the Tesla, we think it'll do fine.

He talked to us about why it costs over $100,000 (this one is about $150K), the engineering behind it, and the type of infrastructure needed for mass electric cars (for example battery exchanges instead of gas stations). From what MARS learned, electric car technology is advancing quickly and costs will start falling soon. Right now, it's like back when a flat screen plasma TV was $20,000.

Whether the electric infrastructure can handle 250 million electric cars in the future is up to us as FRC students!

By the way, there's more pictures of the Tesla on our photo gallery.

Re: pic: MARS 1523: Our New Tesla
 

Every alternative energy drivetrain has roadblocks. True.

Why not focus on developing better engines of your favorite variety (diesel or gas)?

Because at some point, it becomes economically non-viable to do so. If it was economically viable to engineer an engine to have 60 MPG right now, you can bet that somebody would have done so! But at the present time, it's not economically viable. Give it a couple of years or so.

Why are people working on EV technology? Because it may not be economically viable right now, but it's getting very close. As soon as it is, you can bet that the companies that currently have the technology to make EVs will be making money hand over fist, as they'll either have the market-ready stuff, or they'll be making a lot in patent royalties from other companies that are building EVs using their technology. And, what they're working on can improve the hybrids.

The obstacles to an EV are simple: Range (how far you can drive without charging), Price (those batteries are expensive), Charge time, Performance, Size/weight. All of those are improving.

Re: pic: MARS 1523: Our New Tesla
 

I find it slightly funny this topic shifted to a discussion on electric vs gas cars.

Neat picture. Would've been nice to get a shot of the motor (guess I can't call it a "engine"), but I would've been to excited to worry about pictures. Very cool.

-Tanner

Re: pic: MARS 1523: Our New Tesla
 

We've got a picture of the engine here. It's in the trunk.

Re: pic: MARS 1523: Our New Tesla
 

First, there is not and probably will never be one solution to climate change/our overdependence on oil. We need to cut down a little here and a little there. So, if you are waiting for the perfect solution, you will be waiting a very very very long time. I think we should use these economically efficient and environmentally friendly technologies while we are researching bigger and better technologies.

Re: pic: MARS 1523: Our New Tesla
 

Um climate change will never end! It is defined by changes in weather patterns. ;)

Re: pic: MARS 1523: Our New Tesla
 

Emissions from cars are a major source of green house gases. Some people are under the impression that driving a hybrid vehicle will help "save the planet." Even though studies have shown that hybrid drivers tend to drive more then none hybrid owners. Also when you scrap a hybrid you end up doing more damage due to the batteries being dumped. Trust me I know that there is no one fix, but if people want to try to make a eco friendly car, then go hydrogen. All it puts out is water and oxygen.

Re: pic: MARS 1523: Our New Tesla
 

That's good, right? The people that are driving the most should be using the most efficient cars. Or are you saying that having a hyrid makes you drive more and thus leds to more CO2 emissions? Darn, this would be a lot easier is correlation did mean causation...:)

But, your point about disposing the batteries is probably valid. I'm sure all those smart engineers can solve that, though.

Re: pic: MARS 1523: Our New Tesla
 

When you buy a Tesla Roadster, your purchase cost also pays to have the battery pack recycled at the end of it's life. Toyota also pays to have Prius batteries recycled, so I assume that cost is hidden somewhere's in the purchase price as well. :)

I am not sure how other manufacturers work, but I imagine (or at least hope!) that they also have a recycling plan.

Re: pic: MARS 1523: Our New Tesla
 

Sal those are the batteries

Re: pic: MARS 1523: Our New Tesla
 

once again LEAF, NISSAN LEAF 100 mi range, NOT A HYBRID

will be OUT TO MARKET THIS YEAR

everyone wants to talk about the energy potential of gasoline, but when you are getting 20% efficiency it really can't compare to an electric vehicle that has efficiency somewhere between 75%-90%.....if it had much more to offer we wouldn't be sitting at the same efficiency numbers that we had 30-40 years ago

Also you should look into the new nano phosphate batteries (A123 prismatic, Altair NanoSafe) that are being made. Also it may be beneficial to look up and read some materials from the USABC, you may be surprised.

I am not suggesting they will replace every user's needs immediately, but certainly the commuters that travel to and from work 50 miles.....thats a lot of zero emission cars....keep your hummer but make your commuter car electric and eventually your range concerns will be handled (also the whole supply demand thing comes into play with the price of gas)

Re: pic: MARS 1523: Our New Tesla
 

One major obstacle to pure electric cars like this is the strain it put on the power grid. Whoever said infrastructure was right, but not about "where to plug it in" but where the power is coming from. This switches a huge volume of cars from chemical energy to electrical energy. A switch that many parts of the country probably cannot currently handle if these cars are successful.

That being said, I will go back to drooling at the Tesla.

Re: pic: MARS 1523: Our New Tesla
 

You're right, the electric grid in this country is barely adequate to serve our current peak demand periods, and is due anyway for major investment in upgraded infrastructure to handle the expected population growth of 100 million people over the next fifty years. The only problem are the selfish NIMBYs who bought property next to existing high voltage transmission lines then fight any plan to upgrade the power lines to handle more juice, but then rabidly complain any time their electricity goes out for more than a second that the electric company should do more to prevent blackouts. :rolleyes:

Any major push to upgrade the electric grid would probably also occur concurrently with the construction of new nuclear, new renewable, and new natural gas plants. Right now the American Midwest is to wind what Saudi Arabia is to oil; we only need to harvest this power and get it to our cities. Also, installing wind turbines on farmland in the nations heartland can help struggling farmers.

While the wind isn't always blowing, put enough wind turbines over a large enough area, and you'll see that the output of the entire wind farm will be pretty stable. But even so, renewable energy can be complimented by natural gas; with very little pollution and the ability to bring a natural gas power plant to full generating capacity in 20 minutes (oil and coal plants take an entire day to "warm up"), the natural gas plants can offset any temporary loss in wind. Then to provide a stable backbone of the electric grid, nuclear. But, construction of any new nuclear plants should proceed cautiously until we finally start building the Yucca Mountain containment facility.

There are also other ideas to harness the excess energy of wind when their isn't sufficient demand, and it can come in the form of either pumped water energy storage or centrifuge storage. In the former, excess electricity is used to pump water from a low location to a really high location. Then when electric demand increases, they open the gates on the upper reservoir and let the potential energy of the water generate electricity. There are already numerous power plants like this already stationed all across the world.

Another idea for energy storage I saw a few years ago was to put heavy cylindrical masses in a nearly perfect vacuum, then use magnetic bearings such they they would be suspended in place without touching anything. Then when there is excess electricity, electromagnets begin spinning the huge mass faster and faster. Since the masses are held in a vacuum with magnetic bearings, there is essentially no friction (only an ever so slight amount due to our inability to generate a perfect vacuum), and thus once spinning can stay that way for weeks or months without any additional input. Then when demand turns around, you can use the electromagnets to pull energy off the spinning masses, and sell that electricity back to the electric grid.

Rather than look at new and upcoming ideas and ask "Why?", we should be asking "Why not?". For every potential problem with new technology, someone, somewhere is most likely working on a fix to make it better. And if they aren't, then patent your idea and do it yourself! Let's finally create that awesome future with lunar bases and bullet trains and clean air from electric cars and robot butlers and commercial space flight and everything else we've been promised for decades. We as a society are always moving forward, always progressing, so let's not let cynicism about imperfections in current and upcoming technology hold us back from implementing and solving these issues, and in the process improving the health and well being of society.

Re: pic: MARS 1523: Our New Tesla
 

Electric car? It's the wave of the future!

Re: pic: MARS 1523: Our New Tesla
 

The energy problem isn't so much with the infrastructure itself, or how much power it produces, but with the amount of demand placed upon it. It's not so much necessary to produce more electricity as it is to reduce how much electricity is used. Often enough I see and hear messages on TV and radio about conserving energy, switching to energy efficient lights, appliances, heating/cooling systems for air and water, etc. I wonder how much energy could be saved if enough people actually took the initiative and did all they could to reduce energy consumption both at home and at work, especially as the cost of energy efficient appliances and equipment falls as they become more common.

Dean Kamen himself is a prime example. There was an article on MSNBC a few years ago highlighting his island's energy independence. The article states that just by switching the island's lighting to LEDs, the electrical use dropped by at least half. Granted LED lighting fixtures aren't the cheapest things on the market at the moment, but as they become more prevalent costs will drop. If LED lights were to replace the majority of incandescent, and even CFL bulbs, the demand on the electric infrastructure would fall by a noticeable amount, opening up capacity to charge electric vehicles.

Something else that caught my eye on Slashdot this morning was a Caltech press release stating they've been able to produce flexible solar cells that are 85% efficient in sunlight. Build them into the frames of electric vehicles, or panel a building's roof with them, and you're offsetting your demand from the grid, again opening up capacity to charge electric vehicles.

As for the range of pure electric vehicles, I personally drive 13 miles to work, and 13 miles home every day. 40 miles is plenty of range for my needs, and enough for many people I know to get to work and back home without the need to charge during the day.