Burner Trouble- global warming and climate change from a personal perspective

“The idea is to capture the sun’s heat. Heat, unlike electric current, is something that industry knows how to store cost-effectively. For example, a coffee thermos and a laptop computer’s battery store about the same amount of energy, said John S. O’Donnell, executive vice president of a company in the solar thermal business, Ausra. The thermos costs about $5 and the laptop battery $150, he said, and “that’s why solar thermal is going to be the dominant form.”

As oil prices skyrocket and technology makes breakthroughs, our ability to generate clean, sustainable energy becomes more and more viable. However the big roadblock to technologies like solar and wind is that they do not run 24/7 like water or nuclear, meaning they are an undependable source unless we can find ways to store the energy during those cloudy, windless days and dark nights. Battery tech has been a major stumbling point because of costs and inefficiency (much of the energy is lost during storage). As the above quote from today’s excellent NYTimes coverage of storage challenges notes, there are entirely new ways to look at storage that, in turn, have made new energy sources viable. One example is the focusing of solar heat by a field of hi-tech mirrors onto a tower full of water and heavy salts. During the day this heat powers steam turbines, during the night the stored heat in the tower keeps those turbines turning.

Read the article- it is easy to be a doomsayer during this rapidly expanding crisis but there are truly great things coming out of this scenario, great in the long term.

“Forever is composed of nows”

Emily Dickinson

Honda thinks my new Civic will be worth $12,000 three years from now. I don’t think so. Here’s why.

Gas is inevitably going up up up because of emerging, energy-hungry markets in Asia and the rest of the world.

Higher Demand+ Limited Supply= Higher Prices.

A car that gets ‘only’ 25/36 MPG won’t be in demand.

New car technology, including plug-in hybrids, will be the standard because the demand will be intense and the technology exists now.

As the Car Lady pointed out in a recent comment, leasing is definitely the way to go right now because of these factors. Things are changing so fast that you can’t risk owning an expensive piece of equipment that will become outdated before it is even paid for.

Welcome to the future.

Solar thermal power is generated by building a field of concave mirrors that focus the sun’s heat onto a liquid encased in pipes. The liquid is superheated and used to generate steam that powers turbines, generating electricity. In the south west, where open desert land and sunlight are plentiful, they are building these facilities as fast as they can. They are completely unrelated to conventional solar panels that convert light into electricity but are very costly to build.

“On sunny afternoons, those 10 plants would produce as much electricity as three nuclear reactors, but they can be built in as little as two years, compared with a decade or longer for a nuclear plant. Some of the new plants will feature systems that allow them to store heat and generate electricity for hours after sunset.”

NYTimes.com (link above)

New designs that focus the heat onto towers will work in less sunny areas. With a lot of discussion about starting to build new nuclear plants which are very efficient but create an unsustainable stream of radioactive waste, it’s important to understand that we have very clean alternatives. There are environmental impacts of building these large facilities on open land but they are nothing compared to the impact of any conventional energy source such as coal, gas or nuclear.

Apparently it’s not rocket science to do this but it would require a lot of power so they are proposing creating a nuclear-powered gasoline generation plant that would convert carbon dioxide into gas.

Just one more technology solution to throw into the mix. This one becomes viable when gas at the pump hits $4.60/gallon. The national average cost a year ago was $2.26, today its around $3.20 but oil closed above $100/barrel yesterday for the first time so that $4+ number could happen this year.

The economics of alternative energy sources get a lot more compelling as prices rise, just as do those of public transportation.