Oil barons really know how to dig holes in the ground. And they need a better place to put their money than trying to confuse the public about how serious global fever has become. I think they are missing a old-fashioned business opportunity, and a giant one at that.
I recently stood next to an electrical generator, big enough to power a city the size of Seattle (about 1,000 megawatts, known as a gigawatt). It was surprisingly small, no larger than a classroom with a tall ceiling.
The generator’s spinning shaft could be seen where it connected to the steam turbine, next in line. And backing it up were three more turbines, helping to keep that long shaft spinning at 1,800 revolutions every minute.
The generator doesn’t spin freely because every electrical light and appliance in that gigawatt-sized city is resisting it. It takes a lot of push from the four steam turbines to keep it up to speed. Some power plants create the steam in a boiler heated by burning coal, others by using nuclear fission of uranium-235 to generate the requisite heat. The cleanest method of all is harvesting steam from water sprayed on hot granite a few miles [5 km] underground.
But standing in the electricity half of the power plant, you cannot tell what the heat source is. All you see are the big steam pipes coming in at the far end of the giant hall from an adjacent building. Looking out the big open doors, however, two giant cooling towers are immediately visible. (more…)
The timetable is really 2020? That means that we must truly accelerate efforts on all fronts. What can we do as individuals?
You can’t enjoy the long run unless you do the right things in the short run. We’ve only got a decade to make a big dent in fossil fuel use or deploy new carbon sinks in equivalent numbers. Anything slower means a disaster for today’s students.I don’t think we can advance on all fronts, given our 2020 emergency; we’d be better off spending our money on plug-in hybrids than on new rapid transit, for example. Reforming drivers worldwide takes too long.
A major makeover in a decade requires a lot of people working together, not separately. Individuals cannot do very much, in time for 2020, but they can–and must–persuade politicians to either get moving or retire. (more…)
11. What do you think about nuclear energy? Is it safe? How can it be utilized to reach your timeline goals?
Nuclear power generation is currently the major C-free energy source. It is over fifty years old, with an excellent safety record. It’s hundreds of times safer than hydro (dams fail) and thousands of times safer than fossil fuels. Unlike the other expandable C-free sources, most of the beginner’s mistakes have already been made. It took three decades before the efficiency doubled.
France has switched to nuclear for 78 percent of its electricity. Hydro gives France another 13 percent. So France is 91 percent clean, 9 percent dirty—and Texas is the exact opposite. Texans now get 91 percent of their electricity from fossil fuels, almost twice the national average. Switzerland is 1 percent dirty and the U.S. is at 60 percent (electricity only; about 85 percent dirty counting transportation energy needs too).
If France and Switzerland switched their vehicles over to electrical power, they would serve as even better C-free energy models for the world. Much as I admire Denmark’s style of distributed cogeneration and the move to renewable wind and solar energy, there simply isn’t time to scale that up around the world before 2020, given how many coal trains and oil tankers need to be retired. (more…)