Archive for May 11th, 2009

Monday, May 11th, 2009 | Author: Rich

In a post earlier this year, we looked at the impressive environmental legacy of the Sundance Film Festival, and of its founder Robert Redford. Apart from being a film legend, half of the coolest screen duo of all-time and a powerful advocate of creative (indie) freedom, Redford has been a leading voice on environmental issues for decades. He has promoted the development of renewable energies since the early 1970s, and he’s using that experience and his celebrity to focus attention once again on the need for green innovation.

For a recent piece on the Huffington Post, he writes,  “I remember when America was leading the pack on clean energy in the 1970s. We abdicated that leadership,” but, he argues, “we are a nation of innovators, and we can harness that resourcefulness again to build a better future.”

Producing a film in 1975 called ‘The Solar Film,’ Redford saw economic, environmental and political reasons for believing solar technology would gain momentum. “I was too early in my efforts to promote solar power,” he acknowledges, “but now is the time. We are getting a second chance–another American trait. If we don’t seize this moment, we will be too late to get the competitive advantage in a global marketplace, too late for the economic dividends, and too late to stave off the worst of global warming.”

For the Salt Lake Tribune, Redford writes about the possibilities in renewable energy in his adopted state of Utah. “Anyone who knows Utah knows the power of wind, water and sun. You can see that power in Utah’s sculpted arches of stone, in our majestic mountains capped with snow, and in the cracked earth of our deserts.”

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Monday, May 11th, 2009 | Author: Rich

We’re always interested in innovation that enables us to harness wasted energy. Whether it’s converting the motion of the ocean into usable energy, or building dance floors that capture the energy of dancing feet, machines at the gym storing power used to lift weights, or, as we recently saw in a cafe in the Netherlands, turning a revolving door into a generator, we’re convinced these ideas will help set the stage for our sustainable future. The latest innovation may come courtesy of a team of MIT undergraduate students that has invented a shock absorber that harnesses energy from small bumps in the road.

Their tests showed “a significant amount of energy” was being wasted in conventional suspension systems, “especially for heavy vehicles.” The team says it can produce up to a 10 percent improvement in overall vehicle fuel efficiency by using the regenerative shock absorbers. The prototype shock absorbers use a hydraulic system that forces fluid through a turbine attached to a generator. The system is controlled by an active electronic system that optimizes the damping, providing a smoother ride than conventional shocks while generating electricity to recharge the batteries or operate electrical equipment.

More efficient AND a smoother ride? Win-win! So, who will be the first big customers? The students hope to initially find customers among companies that operate large fleets of heavy vehicles. They have already drawn interest from the U.S. military and several truck manufacturers. The team calculated that a company such as Wal-Mart, for example, could save $13 million a year in fuel costs by converting its fleet of trucks.

For more info, check out MIT’s site.

Category: Technology, Waste  | Leave a Comment