Tesla has invested a lot of capital in building a comprehensive network with banks of superchargers capable of providing 135kW to make long distance EV travel possible. Lacking such a network other manufacturers are currently limited to producing limited range city EVs and plug-in hybrids.
Most Chademo and sae+combo chargers max out at 50kW and offer power for just 1-2 vehicles at charging locations are poorly located for interstate travel.
How will GM work to enable long distance EV travel with their vehicles?
ps: I live in Wisconsin where Tesla will soon have 9 supercharging stations, I take delivery of my Model S 85D in two weeks.
Leaving out Boeing would be budget suicide for NASA.
No one should be left out because there should be no contract. Instead, NASA should be fostering a spot market for launches. They should have a separate bid for each launch: "We want X satellite in Y orbit, and insured for Z dollars." Then give the launch to the lowest bidder. That way each company can work continuously to cut costs and improve services, knowing that if they leapfrog the competition, they can win the next launch, instead of being locked out for years.
That is not feesable. It take years to be trained to fly in a spaceship - whether the lifting body like the Shuttle or Dream Chaser, or a capsule such as Soyuz, CST-100, or Dragon V2. You have to build not only the rocket, but a tower to carry the crew to the top of the rocket along with an arm to get the astronauts into the vehicle (which is not compatible/spacecraft). Escape systems need to be installed. It's very expensive, and it would never be built without assurance that the demand is there. At this time, there is no market for launches except from NASA or ESA. Cosmonauts would ride Russian spacecraft, Indians and Chinese are developing their own systems, etc. The public demand is too little at this time. Without a long-term contract, NASA is not enough for your proposal.
Tesla superchargers charge at 120kW with a wired connection. 20kW is not fast enough to quickly charge an electric vehicle that has enough batteries to provide adequate range. Even the Fast DC chademo chargers for the leaf can charge at 50kW.
Fast wireless charging will never happen because wasting 10% of your power as heat under the vehicle will cause things to melt at high power rates.
As a fellow TSLA stock holder, I absolutely agree.
The growing electric vehicle market has plenty of room for multiple manufacturers. Tesla by itself cannot grow faster without introducing quality issues and cannot make vehicles fast enough to transition the entire vehicle market. Other automakers are unwilling to invest in their own supercharger network and without access to high power fast charging they will be forced to produce plug-in hybrids for the foreseeable future. Opening the standard would help bring in more capital to build the supercharger network and hasten the transition to zero emission vehicles.
I think that over a certain speed, fuel economy goes way down.
This is because:
For high velocities drag will vary as the square of velocity. Thus, the resultant power needed to overcome this drag will vary as the cube of velocity. The standard equation for drag is one half the coefficient of drag multiplied by the fluid mass density, the cross sectional area of the specified item, and the square of the velocity.
https does not work.
!07/11 PDP a ni deppart m'I !pleH