Since coal power generating plants only account for 39% of the power generated in the US, your "umbilically attached" comment is accurate in less than half of the country.
In fact, nuclear energy (19%), hydro (7%) and other renewables (6%) account for 32% of the power generated, so there is almost as much generated by renewables as by coal. As these technologies expand it will overtake coal as a source for electric power.
What is U.S. electricity generation by energy source - FAQ - U.S. Energy Information Administration EIA
As taxpayer funds dry up, you will see less and less renewables being built, and those that are already there will rapidly disappear.
once they become economically viable they will be everywhere and the guy who finds a way to make them viable will become the next Bill Gates.
Considering the advances his company has made, his name is Elon Musk.
Prior to Tesla, EVs were experimental cars that resembled toys or golf carts. The business was incorporated in 2003. They released their first production car in 2008. So in 5 years they went from concept to production of a completely new type of car. In the next 7 years they went from a production car with little practical value to a serious performance/luxury car that is very practical.
I am amazed at the number of people who seem to want to dismiss a car that won '2013 Automobile of the Year' from Automobile magazine, Motor Trend 'Car of the Year', and Consumer Reports said was the best car they ever tested. Not to mention that they were awarded the highest crash test rating ever.
Perhaps if state legislatures weren't wasting time and handicapping the sales, there would be more of them on the road.
At 60,000 for a base Model S, that is unlikely. Tesla has also benefited greatly from using OTHER PEOPLES MONEY. Namely the US taxpayer. The US taxpayer has been footing the bill for old Elon for a very long time. I would like to see Tesla prosper on its own. I would like to see Tesla live or die on the funding it receives from venture capitalists and investors.
That won't ever happen however.
Tesla started with a $465 million loan from the Dept of Energy. They paid that back 9 years early.
I see them doing fine once they get their production up. Right now they sell to high end buyers. But then, so did the initial car manufacturers. And not just car manufacturers. My brother bought the first VCR I ever saw. It was a huge clunky thing that set him back $2,500.
And every plant they have built has been funded by massive tax breaks. Every single one. The most recent one here in Storey County is benefiting from a 5 billion dollar tax break.