(Published today on lipolitics.com)
In the wake of the Fukushima Daiichi and Chernobyl nuclear plant disasters, it is clear that nuclear power is far too dangerous an energy technology. And considering the global warming impact of burning fossil fuels—coal, oil and gas—they also need to be eliminated.
So how are we to power society?
In fact, safe, clean, renewable energy technologies are more than ready to do it.
Scientific American, a most conservative scientific publication, in a 2009 cover story unveiled its “A Plan for a Sustainable Future.” It declared in its “Plan to Power 100Percent of the Planet with Renewables” that, “wind, water and solar technologies can provide 100 percent of the world’s energy, eliminating all fossil fuels.”
The New Scientist, the highly-respected British magazine, also in a 2009 cover story titled “Our Brighter Future”–presented presented a United Nations report declaring that “renewable energy that can already be harnessed economically would supply the world’s electricity needs.”
From solar to wind (now the fastest-growing and cheapest new energy technology) to wave-power to tidal-power to bio-fuels to small hydropower to co-generation (combining the generation of heat and electricity) and on and on, a renewable energy windfall is at hand.
A while back, I visited the National Renewable Energy Laboratory (NREL) in Golden, Colorado. In one division, solar power was being used to break down water into oxygen and hydrogen — with the hydrogen available for use as fuel. “It’s the forever fuel,” Dr. John Turner, senior scientist at NREL told me. “This uses our two most abundant natural resources—sunlight and water—to give us an energy supply that is inexhaustible.”
In another division, which pioneered thin-film photovoltaic technology (sheets of material embedded with solar collectors that can coat a large building, even a skyscraper, and have the building become a huge power generator), the scientists spoke of solar photovoltaics generating all the energy the world needs. Thin-film photovoltaic is now being widely used in Europe.
In the wind division at NREL, scientists were speaking about the advanced wind turbines they have developed—especially for off-shore siting—and the abundant wind resources all over the world that could provide, they, too, stressed, all the energy the world would need.
All the NREL scientists from the various divisions speaking of how the renewable energy technology they are working on could provide all the energy the world needs might not all be right regarding a specific technology—but together a mix of these and other safe, clean energy technologies can indeed provide all the energy the world needs.
There’s also the NREL division in which technologies to use biomass to produce fuel, not out of food crops but from non-edible vegetation and various waste products. And so on.
Or consider “hot dry rock” (HDR) geothermal. It turns out that below half of the planet, just one to six miles down, it’s extremely hot. When naturally flowing water hits those hot rocks and has a place to come up, geysers are formed. But now a technology has been developed that sends water down an injection pipe to hit the hot dry rock below and rise to the surface in a second production well — which can turn a turbine and generate electricity. Dave Duchane, the HDR manager at Los Alamos National Laboratory, told me: “Hot dry rock has an almost unlimited potential to supply all the energy needs of the United States and, indeed, all the world.”
Renewables Are Ready is the title of a book written by two Union of Concerned Scientists staffers in 1999. Today a host of safe, clean, renewable energy technologies are more than ready. Combined, importantly, with energy efficiency, they render as unnecessary nuclear power, as well as fossil fuels.
Lester Brown, president of Earth Policy Institute, last year published World on the Edge: How to Prevent Environmental and Economic Collapse, which concludes that solar, wind and geothermal energy can provide all the energy the world’s needs and he sets forth his Plan B that would implement this. Brown, formerly president of Worldwatch, dismisses nuclear power as too expensive and dangerous.
It’s already happening, he emphasizes. “The old energy economy, fueled by oil, coal, and natural gas, is being replaced with wind, solar, and geothermal energy,” writes Brown. “Despite the global economic crisis, this energy transition is moving at a pace and on a scale that we could not have imagined two years ago.”
In a chapter titled “Harnessing Wind, Solar, and Geothermal Energy,” Brown details the potential and the technologies for fully utilizing these safe, clean, renewable energy sources.
“This transition is now building on its own momentum,” says Brown, “driven by an intense excitement from the realization that we are tapping energy sources that can last as long as the earth itself. Oil wells go dry and coal seams run out, but for the first time since the Industrial Revolution, we are investing in energy sources that can last forever.” To view my “Enviro Close-Up” TV interview with Brown, go to http://www.youtube.com/watch?v=SVm33cprlzI
What’s needed now is rapid and full implementation of the safe, clean, renewable enrgy technologies now available.
Instead of a Manhattan Project, the wartime crash program out of which came nuclear weapons (followed by nuclear power plants), let’s have, as Alice Slater of the Nuclear Age Peace Foundation, says might be called a “Bronx Project”—a crash program to fully implement the use of safe, clean, renewable energy. What a job-creator it would be. And what a new world of safe, clean, non-polluting energy technologies we would then have—energy we and Planet Earth can live with.