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Incompatible premises

Screenshot

Your house or mine, depending on the whether.

Back to the irresistible force paradox ( ED. We never left – it won’t leave) where the unstoppable force meets an immovable object. In our case, the immovable obtuse object will not listen to available facts, widely available since the 1980s. Our elected representatives, and the companies that keep them, elect to do nothing about climate change. Even though they know better, just like they get vaccines, largely eat healthy foods, and take regular vacations to foreign capitals.

And the climate continues its response to unabated carbon emissions, pollution, sprawl, and their attendant maladies.

Most poignantly, we have, despite the efforts of the best and brightest, figured out what to do. Every little thing but more importantly the big expensive ones. The power of collective action – the real facts we hate – as well as the beauty of slowness and direct personal touch. We also know beyond doubts that ‘big expensive’ will be far more affordable – always with the deadly calculus – than the bigger expensiver denial that creeps closer as we try to maintain that denial rather than a healthy biosphere. The simple human effort required of managing the cognitive dissonance of massive personal vehicles and long commutes, the right to cheap food and expensive entertainment, is plenty enough power to humble us into open minds about a closed system. Yet we cling to the power to resist all we should embrace. Forever batteries, powered by spite.

Meanwhile, more energy hits the Earth every morning than every man, woman and child will use in 27 years, if you’re scoring at home.

Image: screenshot from Bloomberg, but they’re just the messenger.

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Floating Solar

SOLAR-masterThe next innovation in solar power capture is here there:

But floating solar arrays are becoming more popular, with installations already operating in Australia and the United States, and more planned or under construction.

The growing interest is driven in part by huge growth in the solar market in recent years as the cost of the technology has dropped quickly.

Floating solar arrays — they are often referred to as “floatovoltaics,” a term trademarked by one company — also have advantages over solar plants on land, their proponents say. Renting or buying land is more expensive, and there are fewer regulations for structures built on reservoirs, water treatment ponds and other bodies of water not used for recreation. Unlike most land-based solar plants, floating arrays can also be hidden from public view, a factor in the nonprofit Sonoma Clean Power Company’s decision to pursue the technology.

The floating arrays have other assets. They help keep water from evaporating, making the technology attractive in drought-plagued areas, and restrict algae blooms. And they are more efficient than land-based panels, because water cools the panels.

“The efficiencies are what motivated us to look at this,” said Rajesh Nellore, the chief executive of Infratech Industries, which has completed the first section of a floating solar plant in Jamestown, Australia, that will eventually cover five water treatment basins.

And evidently, fish love them. The anti-evaporation properties alone are the worth the ticket. Plus: energy. Let’s rip up the freeways, build spill ways and fill ’em up with PV cells.

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Photo-voltaic Impasse

Might have been broken.

Photovoltaic (PV) efficiency is a significant problem for today’s commercial solar panels, which can collect only a theoretical maximum of about 30 percent of available light. Now, a team that includes a University of Missouri engineer is developing a flexible solar film that can theoretically capture more than 90 percent of available light. Prototypes could be produced within the next five years.

Patrick Pinhero, an associate professor in the MU Chemical Engineering Department, says energy generated using traditional photovoltaic methods of solar collection is inefficient and neglects much of the available solar electromagnetic (sunlight) spectrum. The device the team is developing — essentially a thin, moldable sheet of small antennas called nantenna — is designed to harvest industrial waste heat and convert it into usable electricity. Their ambition is to extend this concept to direct solar facing nantenna devices capable of collecting energy broadly from the near infrared to the optical regions of the solar spectrum.

90% is much more like it. High-speed electrical circuitry. Inexpensive manufacturing processes. This is not being saved by technology so much as using engineering to break the problem down into manageable fragments until it’s no longer a problem and more of way to do what we want – harvest as much energy as possible for the sun.

Moving on to renewable energy sources can be done – and need not been seen or thought of a desperate last gasp/final hope but the natural of progression of technology and its uses that our subservience to fossil energy sources has for so long stymied. Departments of Energy whose first loyalty is to oil and gas industries will not provide the necessary R & D investments in replacing the same. This kind of research takes a lot of money, time and expertise – but the payoffs will be enormous. I’m looking at you, coal, in the rear view mirror.

Via IC.

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Museum-ready

Years ago, when I was doing construction work and learning much about rehabbing old houses, we installed some enormous Photo Voltaic (PV) panels atop one Victorian-era manse that, if I’m not mistaken, were able to power a refrigerator of sufficient dimension for, I think, one frozen pizza. No lie. We all stood back and were like, man this is crazy. Talk about giving enlightenment a bad name – it was the hat trick – expensive, giant and ineffective.

Yesterday, an Israeli start-up unveiled PV technology at a kibbutz in Ashdod capable of harnessing 75 per cent of incoming sunlight. It looks like a modified parabolic trough but is actually a PV arrangement that uses mirrors to reduce the number of PV cells needed and has a water cooling system that increases efficiency and produces thermal energy.

The Monitor story also has a link to a video of a student project at MIT that concentrated the sun’s rays so intensely it was able to light a wooden 2 x 4 on fire.

The prospect of free energy in a region, or planet, dominated by the despotism of fossil fuel interests is quite a hopeful scenario – though it’s important to point out that we can become captives of hope just like anything else. Developing devices that track the sun, that work in shade, the abide by absolute requirements (clean, low cost, durable) we should demand of our energy technology at this point has nothing to do with hope. These are mere capabilities we should surround, master and set aside, and leave the old PV technology for museums that document the era of swell intentions and token investments in energy innovation and imagination.

An era already in the rear-view.