“Going Solar” Affordably

The focus of government programs encouraging the individual use of alternative energy sources focusing primarily on high end systems, particularly solar photovoltaic (PV) systems, although well-intentioned, may ultimately end up ineffective for the most part. Programs that result in significant numbers using at least some solar, geothermal or other alternative energy sources are infinitely more valuable than ones that are more expensive but are only utilized by a small “elite” of environmentally aware AND financially well off consumers.

While strong majorities of Americans believe that all new home construction ought to offer consumers a solar option, and most state that they would be willing to pay a premium of 10% more on a new home, very few Americans currently own solar home installations.

No doubt part of the reason for that lies in the fact that most people are only aware of PV and, to a somewhat lesser extent, solar hot water systems. PV systems are often out of reach for most Americans because of high initial costs. Solar hot water systems, while not as costly, are still out of the reach of a lot of consumers, and often have performance, maintenance and installation issues.

Fortunately there are a number of additional alternatives for “going solar,” all of which are significantly less costly than PV systems. Also many of these systems are passive and thus have no moving parts or major maintenance issues.
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Filling the Gaps in Energy Production with Cogeneration

In the late 1970s, John Gofman, co-inventor of plutonium, had second thoughts about his work with nuclear power over the years. He authored a book entitled Irrevy, in which he argued that the use of nuclear power for electrical production amounted to a bad tradeoff of inefficient and expensive power generation for an insoluble toxic waste problem and generations upon generations of unknown cancers and genetic defects.

While the portion of domestic electricity currently produced by nuclear energy is marginal, at that time there were quite a few more nuclear power plants and nuclear energy production. A perfect storm of Three Mile Island and Chernobyl together with movies such as The China Syndrome gave impetus to an anti-nuclear movement, of which, Gofman was a pre-eminent spokesman, which changed all of that.

Now, as the nation faces an energy crisis, not just of gas lines, but of all energy production, the idea of re-introducing nuclear energy with a vengeance has emerged. During the 2008 Presidential campaign, Republican candidate John McCain proposed building 50 new nuclear plants. As the electorate starts to forget why the moratorium on nuclear plants in the US went into effect in the first place and embraces the simplistic argument that 80% of France’s electricity is produced by nuclear plants, it becomes more imperative that we not only examine Gofman’s objections to the ‘nuclear option,’ but take a look at some of the alternatives he proposed.

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Biogas from Sewage and Landfills, Glamorous No but a Renewable Yes

In the last of the “Mad Max” movies, the one that prominently featured Tina Turner, Mad Max: Beyond Thunderdome, the post-apocalyptic world depended on “pig sh*t” for energy.

That idea, albeit the invention of a Hollywood screenwriter, may not, however, be as outlandish as it might originally appear. In India, for example, there are myriad small methane producers throughout the country that produce just enough methane for home uses, using small methane generators powered mostly by cow dung.

In September of 2008, San Antonio, Texas set into motion an ambitious plan that would make it the first US city ever to convert sewage into methane gas on a large scale. The plan calls for the complete recycling of at least 90% of the approximately 140,000 tons a year of “biosolids” produced by the citizens of San Antonio into water for agricultural irrigation, solid compost and now, methane gas, which will be used for the generation of electrical power.

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A Few Things to Consider About Ethanol…

If finding ways to slowly ween America’s dependence on foreign oil is also a welcome opportunity to promote green, cleaner-burning alternatives, it’d be foolish — no — irresponsible not to embrace it right?

Well, when it comes to ethanol it’s not quite so easy. But it seems so simple … almost too good to be true: Grow corn, process corn into ethanol, blend with gasoline and go!

The ethanol industry has been growing for quite some time. Last week marked the 25th Fuel Ethanol Workshop and Expo (FEW) here in Denver. Every existing or under-construction ethanol producer and refiner in the country was invited. This industry expo was packed two years ago in St. Louis. Apparently this year, not so much.

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After Stab in the Back, Geothermal Poised for a Comeback

Whenever alternative energy is mentioned, solar and wind energy come most immediately to mind. Yet as promising as the futures for these energies may be, most Americans may not be aware that geothermal energy has been extensively utilized in the past and present. Moreover, its future appears to be virtually unlimited and initial capital outlay for its development might well be the most cost-effective of all alternative energy sources.

In a story that received very little media coverage at the time and even less coverage when the Bush Administration pulled funding for geothermal research shortly after, the Massachusetts Institute of Technology (MIT) released a study concluding that a proposed form of geothermal extraction they referred to as “heat mining” could “provide a substantial portion of the electricity that the United States will need in the future.” Furthermore, the MIT study concluded that “heat mining” could do so “probably at competitive prices and with minimal environmental impact.”

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Star Trek and Helium-3, Will Moon Mining Save the World?

Star Trek (2009)’s box office has already reached $80 million, received unanimously glowing reviews, as well as a few that might be over-the-top, such as the one that declared it is now cool to be a Trekkie. Now that space exploration is once again in the popular imagination, however, it might be useful to consider what, if any, contribution space science might be able bring to the energy, economic and environmental challenges that face mankind here on earth.

Many are probably aware that the earliest research with solar photovoltaics was a result of the space program. Some are no doubt aware that the monitoring of the effects of global warming would be considerably more haphazard and certainly less scientific without the use of satellite surveillance. Few, however, are likely aware that the Apollo 17 moon landing in 1972 revealed a potential alternative energy source that could provide almost unimaginable power production that would come with an almost neglible environmental risk. Best of all for Trekkies, exploitation of that resource would necessitate mining on the moon, a staple of sci-fi lure.

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Obama Highlights Alternative Energy in Economic Recovery Plan

In his weekly internet video address, President-elect Barack Obama offered an outline of his economic recovery plan Saturday, with jobs as his top priority.  The goal is to create 2.5 million jobs by 2011, in part by “building wind farms and solar panels, fuel-efficient cars and the alternative energy technology that can free us from our dependence on foreign oil and keep our economy competitive in the years head.”

You can watch the video of Obama’s address here: