Interesting Approach to HydrokineticsA reader asked for my comment on this technology: turbines installed inside of municipal water pipes that converts some of that hydrokinetic energy into electricity.

First, let’s start with the most obvious: this doesn’t apply to water that is flowing because it was pushed along by a pump.  This device slows down the velocity of the water, and would therefore cause the pump to work harder to compensate for it.  So we need to confine ourselves to gravity-fed pipes.  (more…)

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Improving Energy Efficiency Makes Good Business Sense

As climate change looms larger in the public conscience and energy efficient practices become more accessible, it makes sense for businesses to invest in more sustainable energy alternatives. The rate at which natural resources are being consumed is not sustainable, so altering buildings and business practices to include renewable energy generation is the logical next step. (more…)

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Developing World Leading a Renewable Energy BoomThere is no doubt that the ultra-low price of gasoline and diesel has made it tough for electric transportation, and, to a degree, renewable energy.  Yet, remarkably, the world is experiencing a considerable boom in the clean energy space. (more…)

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How Civil Engineers can Create Long-Lasting Solutions for the EnvironmentCivil engineering is a career that involves creating, improving and protecting the environment in which we live. Civil engineers are tasked with planning, designing and overseeing the maintenance and construction of building facilities and structures like roads, bridges, airports, railways, harbors, dams, power plants, irrigation projects and wastewater systems. (more…)

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In Terms of Integrating Renewables, All Eyes Are on GermanyOne day last month, Germany generated 90% of its electricity from renewable resources.  Though this is a rarity (their average in 2015 was 33%, up from 28% in 2014), the world stands in awe of what these folks have done in terms of innovation in the energy sector. (more…)

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The Vicious Cycle of Ocean AcidificationIn many cases, the challenges of sustainability are made more difficult by various vicious cycles, where certain bad phenomena feed on themselves and thus enter a pattern of ever-increasing acceleration.  A good example of this effect is ocean acidification, which we’ve discussed at length elsewhere, in which: (more…)

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My colleague Jon LeSage of “Green Auto Digest” fame has written a book about his own experience with the future of urban mobilit

y, Tales of UberMan: An auto journalist shares his Prius with savvy riders, published as a Kindle e-book. I thought readers might be interested in a press release, providing some details.

 

 

 

 

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News Flash: Brand New Technology Sometimes Has Operational FlawsA reader sent me this article about a fire of unknown cause, blazing in the tower of the large solar thermal facility in Nevada (Ivanpah).  Whenever I see stuff like this,  i.e., pointing out how nascent technology doesn’t work perfectly all the time,  I’m reminded of all the people in history who look so foolish today,  who bet against the feasibililty of the telephone, the automobile, the computer,  etc.

 

 

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Wind Energy Giant Vestas Has Grand Vision for the FutureHere’s the president of Vestas Americas, Chris Brown, speaking  to a large audience at WINDPOWER 2016.  An excerpt:

Sustainability is the next chapter in human progress, and the key is making renewable technology economic. (more…)

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Rating Obama's PresidencyOf course, we at 2GreenEnergy view Obama’s tenure as president through the lens of environmental issues, something on which he gets very high grades. Linked above is a post in which I present 60 important accomplishments in this space, each with citations, reprinted from the website PleaseCutTheCrap.com.

This article makes an excellent, more general, point as well. Extremely worthwhile reading.

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