It won’t be easy, but Hawaii should speed up its transition to clean energy

April 23, 2018 by  
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The state has made major progress in its shift from oil to renewables but there’s still a lot to be done, according to a new report analyzing its ongoing transition.

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It won’t be easy, but Hawaii should speed up its transition to clean energy

We need a gender revolution, not an evolution

April 23, 2018 by  
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In a year that’s seen the voice of women rise to the forefront, news of a widening gender gap only highlights how much work we still need to do.

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We need a gender revolution, not an evolution

7 easy steps for telling your sustainability story

April 23, 2018 by  
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Your audience can tolerate only so many melting glaciers. How being authentic can really connect.

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7 easy steps for telling your sustainability story

Wells Fargo pledges $200 billion for low-carbon economy projects

April 19, 2018 by  
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The money will go towards companies and projects involved with clean technologies, renewable energy and more.

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Wells Fargo pledges $200 billion for low-carbon economy projects

This is the most noteworthy part of Apple’s 100% clean power milestone

April 11, 2018 by  
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Other big companies should emulate the tech giant’s focus on helping suppliers get there, too.

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This is the most noteworthy part of Apple’s 100% clean power milestone

How to infuse distributed generation with institutional capital

April 11, 2018 by  
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The yieldco and asset-backed security models could both be highly relevant.

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How to infuse distributed generation with institutional capital

Ford, Siemens use blockchain as the fabric for a sustainable city

April 11, 2018 by  
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Blockchain has enabled transactions from solar energy credits to paying drivers and cutting costs for participants in ride-sharing programs.

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Ford, Siemens use blockchain as the fabric for a sustainable city

How to make solar+storage projects work for low-income communities

April 3, 2018 by  
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Alternatives models of financing and ownership are imperative. Here are some ideas for new ones.

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How to make solar+storage projects work for low-income communities

How floating solar panels are helping the Maldives ditch diesel fuel

March 29, 2018 by  
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Tropical islands might boast pure natural scenery, but their energy sources are often anything but pure. Many power-hungry resorts in the Maldives rely on diesel, a notorious pollutant, for their energy needs. Swimsol , a solar power company based in Austria, is working to change that. Because many of the islands in the Maldives are tiny — you can walk across some of them in under 10 minutes — there isn’t much space for solar power , but Swimsol has solved the problem by turning to the seas. Inhabitat caught up with founder and managing director Martin Putschek to find out more. Sunshine is plentiful in the Maldives; land, not so much. To make matters more challenging, rooftop solar has limited potential – tropical buildings often aren’t made for bearing heavy loads like buildings in colder locations that must withstand snow. “But what you have is huge atolls, around 10 to 20 kilometers wide, roughly. You’ve got the outer reef around this atoll and inside this outer reef, it’s a little like a lake,” Putschek told Inhabitat. After a business trip to the Maldives, the idea came to him while practicing the violin: what if he could install floating solar panels on that water? Related: The Netherlands plans 26,910-square-foot floating solar farm at sea Swimsol’s SolarSea systems are the result of that spark of inspiration – and their first commercial pilot has been operating for just over three years. Solar panels are mounted atop a patent-pending marine-grade aluminum alloy framework designed to let waves pass through. The system, which the company says will last 30 years or more, can withstand waves of around six and a half feet high and winds of around 75 miles per hour. Each platform, which is about 46 by 46 feet, can power around 25 households. Swimsol says the systems assemble much like IKEA furniture, and three people could build one platform on a beach in under a day — no heavy machinery or welding necessary. And it turns out solar panels drifting on the sea are actually more productive than those on land, thanks to water’s cooling effect. “We measured the temperature difference between solar panels on a roof and on a floating structure which were installed very close to each other, like 200 meters apart, and at lunch time you can see a temperature difference of 20 degrees,” Putschek told Inhabitat. He said they can obtain as much as 10 percent more power from floating panels, depending on the time of day. But do floating solar panels impact marine life? Putschek said they clearly need to keep systems away from coral reefs , which need sunlight. Fortunately, there are swaths of water with sandy seabeds where they can install solar. “Regarding the fish , they actually like it. They like the shade and places where they can hide. The whole thing serves as a fish-aggregating device, which is a term for floating platforms with no purpose other than just attracting fish. Ours are solar platforms, but that’s a side effect,” Putschek said. He said corals even grow on the platforms, turning them into artificial reefs. Right now, Swimsol is not selling the floating systems, but the electricity they produce — and they’re able to sell it cheaper than diesel, without a government-subsidized feed-in tariff. “We installed a little over a megawatt last year. This year we’re probably installing about three or so, and in terms of money that’s between $3 and $6 million,” Putschek said. They’re planning a crowdfunding campaign in Austria and Germany in a couple of months, and are looking for a strategic partner for further growth and to help them get access to more funding. “If you install one kilowatt of solar, so that’s four panels, you can save 400 liters of diesel a year. So 100 kilowatts would be 40,000 liters; one megawatt would be 400,000 liters. The point is, it makes sense to go big,” said Putschek. “The idea would be to install dozens of megawatts because the space is there, the need is there. In 2014, the Maldives spent one fifth of their gross domestic product on fuel. That means every hour you work, 12 minutes you only work for diesel. People talk about tidal energy or wind energy and that’s all fantastic but it doesn’t work in the tropics. In the Caribbean, yes; there you have wind. But in the Maldives or Singapore you don’t have enough wind, and you also don’t have big waves. The renewable energy of choice is solar. Because what they do have is a lot of sun. They also have a lot of sea. We’re just combining the two.” + Swimsol Images courtesy of Swimsol

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How floating solar panels are helping the Maldives ditch diesel fuel

Why Wells Fargo’s cleantech incubator is a hit

March 26, 2018 by  
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The bank’s Innovation Incubator has a secret weapon: a national laboratory.

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Why Wells Fargo’s cleantech incubator is a hit

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