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Commented On: Anti-Tesla Bill Backed By North Carolina Car Dealers Is Dead


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So, why is Toyota so resistant to building EV's?

I am very glad that Tesla's American success story is winning over the protectionists - go Tesla!

Neil

Commented On: New York Auto Dealers Try To Make Registering Tesla Stores Illegal: BREAKING


Green Car Reports 0 Views 71 comments
Here's the full link:

https://petitions.whitehouse.gov/petition/allow-tesla-motors-sell-directly-consumers-all-50-states/bFN7NHQR

Commented On: New Gas Mileage Rules Will Reshape What Americans Drive: Aerodynamics And Weight


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Low aero drag cars will need ride leveling - the angles at the back of the car are critical. Lowering a car too far though will *increase the drag* because the air gets trapped underneath and it can't flow freely. A smooth underside is much better than a chin spoiler.

Smooth and flat wheels and tight wheel openings are also key to low drag. These contribute 20-30% of the overall drag, so we need to be open minded about rear wheel skirts, too.

Many people could be driving EV's, which would about quadruple the energy efficiency of those people's cars. ICE's and hybrids @ X-Prize got ~75MPGe - EV's got ~138MPGe.

Low aero drag will let EV's with today's batteries to have ranges 100-150+ miles - the same batteries that go 70-85 miles today.

Commented On: New Gas Mileage Rules Will Reshape What Americans Drive: Aerodynamics And Weight


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Very good article - aero is under appreciated; and actually is important as slow as 28-30MPH, where it is about 50% of the total load on the drivetrain. 40-45MPH is a "sweet spot" for many cars in terms of MPG, given gearing and drag and how ICE's work.

EV's are so efficient at almost any speed, and when you have a very low drag car - you can coast farther, and EV's don't idle, so they can gain even more from low drag.

I take issue with your assessment of the low drag cars we have seen - some comes down to what we are used to, and some comes from odd styling choices. The GM Impact looked much better than the EV1. Narrowing the rear track can lower drag by as much as 40% overall which is HUGE, and a Cd under ~0.24 will require it.

Commented On: Electric Cars Vs. Solar Panels: Which One's The Gateway Drug?


Green Car Reports 0 Views 64 comments
Why is the ability to produce most of our own energy, and the cars that make it possible to drive on locally generated renewable energy - equated with drugs? This is not a helpful thing, in my opinion.

Independence from oil is a wonderful thing - fossil fuels are ruining the only planet we have, and we all need to make this critical change from fossil fuels to renewable energy.

We depend on the sun and the rest of our environment for everything, so let's not denigrate the early adopters - let's all learn from them instead!

Neil

Commented On: Does The Tesla Model S Electric Car Pollute More Than An SUV?


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Every day, the US sends a BILLION+ dollars to foreign countries for oil. Nevermind the military budget required to defend our oil supply. Tar sand bitumen is proof we have passed peak oil.

ALL the money spent on electricity stays in our local economy. Nobody can monopolize the sun, and it will be shining for the next 5 Billion years, or so.

Neil

Commented On: Does The Tesla Model S Electric Car Pollute More Than An SUV?


Green Car Reports 0 Views 122 comments
Coal power plants can - and *should* have scrubbers, etc. making them a lot easier to make less dirty.

We can get SO MUCH electricity from renewable sources, we won't know what to do with it all. The next generation of PV panels and wind and tidal turbines etc. will be made with renewable power produced by the current renewable systems.

Eventually, the energy overhead of electricity will be moot.

Neil

Commented On: Does The Tesla Model S Electric Car Pollute More Than An SUV?


Green Car Reports 0 Views 122 comments
The overhead of these disposables has to also include the transportation energy used to move them around, etc.

The bunker oil used in supertankers, and the solvent used for bitumen has to be produced - just so it is possible to pump this crap through a pipeline...

Commented On: Does The Tesla Model S Electric Car Pollute More Than An SUV?


Green Car Reports 0 Views 122 comments
Another non-trivial factor that the author of this "analyst" left out is the energy overhead for maintenance on an ICE - the oil and the filter and the other materials that are used briefly and then thrown out.

As several people have pointed out - it takes a lot of electricity to find and drill and extract and transport and refine and transport again and store oil and gasoline. The estimates I have seen are between 7.5 and 8.5kWh per gallon of gasoline. Now with tar sand bitumen and deep water wells and other non-conventional heavy crude oil - it takes far more electricity than that, in all probability. And all oil takes a lot of natural gas - which itself takes a lot of electricity to get.

All that overhead negates the conclusion...

Commented On: Gasoline, Diesel, Hybrids And Plug-Ins: The Efficiency Leaders


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The Volt is a plugin hybrid; despite GM's efforts to make us think otherwise.

Neil
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