Have you ever wondered who invests in Green Energy and why?
We DIYers can make effective use of several kinds of green energy, solar, wind, and hydro can be great personal investments.
When we look at things on a larger scale, who are the investors? Who profits?
The following Article about EVs is educational. I think some of the posted comments are representative of a lot of people we all know..
If you are not versed in Calories , British Thermal Units, Kilo Watt Hours, and the measurement of energy, losses, energy storage etc. There is a good way to get in touch with the effort required to move an electric vehicle from point to point. What the Battery in the Electric Vehicle must accomplish is VERY similiar to what your body would need to accomplish to get a job done. Consider you’re on a job interview, you’re offered $25 a mile to push a cart around on dead flat ground with a 150 pound payload. The cart is yours to design, bearings , 2, 3, or 4 wheels, it’s your choice. And you find you can even install a crank and pedals as long as it’s your body providing the locomotion, it’s legal. Your boss gives you the list of deliveries, he pays you by the mile. At 63 years old, I figure I could make $75 an hour, and have an enjoyable and healthy job.
Now consider the same job in San Francisco, some of the streets are so steep, it’s hard to walk at that angle.. what kind of money would you need per hour to be tempted to accept the job if you were to be paid by the mile and you boss picks the deliveries.
When we have an energy storage device, there’s a few things we need understand:
- The initial cost of the storage device and the amount of energy it will store
- The efficiency of the device, (there’s always losses, what portion of what you put in will you get back out?
- What are the typical tasks you need done, and will your storage device offer you a return on investment over a reasonable amount of time.
Electric Vehicles are at the center of Green Energy Conversations, but I find it difficult to find articles written by technical people. Fact is, the last three articles I’ve read were written by free lance writers who had recently covered topics such as Fashion and travel. I think it’s worth the effort to look for that little tab (about the Author).
So here’s your ‘Critical Thinking Lesson” for today.. before you visit the link.. take note of the following. San Francisco is built on a series of hills so steep that many drivers who think they are good with manual gear boxes find themselves challenged to pull away from stop signs because the hills are so steep! Even skilled drivers find themselves making use of the parking brake in order to hold the hill as they let the clutch out! If you live in this town and you have a brain, you’ll have an automatic transmission in your car.
If you have any experience with EVs, you know that you can roll on for what seems forever on flat ground like you find in San Jose, and high tire pressures are key. San Francisco offers some real challenges to the EV owner, high tire pressures makes it far more difficult to stop on the steep down hill terrain, and they’re down right dangerous, especially on wet streets and that’s normal weather here.
In San Jose, you might make it to work and back in your EV, but not make it to the top of a hill in San Francisco on the same charge. If you are looking for some fun, drop into you Chevy Dealer in San Francisco, and ask for a demo ride in the Chevy Volt, let us know if you can make it from the water front up telegraph hill on a full charge . You’ll soon know why it’s a hybrid, and why you’d never consider an EV if you lived here.
But now.. ask yourself.. why did the City Council vote to spend so much public money on such a dumb idea as follows? Maybe you’ll post your answer here once you’ve studied the link and reviewed the comments?
No doubt Ami is a looker, who would take that from her?
If we go back to that Electrical Power Plant and see where we put the energy in, we can study all the losses going forward. No matter what type of power plant it is, there’s normally cooling towers or heat exchangers that dump billions of BTUs of energy in the form of heat. But there’s other losses all along the way.. right up to and including that EV charger!
Then along comes some glue sniffer that compares the EV with an internal combustion powered car. He looks at overall losses in the standard auto, and accounts for a minuscule amount of the losses in the EV. We have come to know this as Enron accounting, and the EV salesmen is the best Enron Dog in the show. I doubt you’ll be reading about all the energy dumped back at the power plant that could have been used aboard the Auto, fact is, we often need to take more energy out of the battery to heat the interior than what it takes to run the drive motor. Had we poured the energy into the car instead, we could have made good use of this energy.
Also note.. modern autos are considered ‘zero emission’ autos.. just how much cleaner is the EV if we do a proper job of accounting?
So.. what percentage of the pure EV enthusiasts live in their parent’s basement?
Could the following be one of the better technical ideas that came out of San Francisco… The greatful Dead’s “Wall of sound”.. I think it might be..