“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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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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The Campus Green: Today’s Universities will Ensure a Greener Tomorrow

Going green is becoming all the rage at colleges and universities around the nation, and we’re not just talking about the Cal-Berkley’s of the world. I should know, since I’m a part of the growing crowd of environmentally-aware young adults! Our institutions of higher education are increasingly providing environments to foster critical thinking and creativity in sustainability with new course offerings and majors. Better yet, our exposure to new media and social networking provide access to the information and social “cool” factors necessary to drive eco-friendly actions from our future leaders.

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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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Green Tips: Choose Paperless Billing

In a week where President Barack Obama set new emission standards for cars at 35 mpg by 2016, we see an example of how macro changes in big industries like car manufacturers can lead to micro changes, reducing the carbon footprint of each of us as individuals.

While we wait for these important legislative changes to take effect, individuals can make an immediate impact with simpler, green actions — including changing the way we pay our bills.

This week, U.S. Bank requested via email that I save paper and switch to electronic statements. Comcast did the same with my cable bill. I recently switched my credit card bills to paperless by simply clicking a couple links online.

For people like me, the pain of junk mail more than justifies the switch to eBills.  And the actions we need to take to make the switch are quite simple.  So just how big are the green benefits of going paperless? Are these companies just trying to dress up a little less paperwork and efficiency with greenwash?

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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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