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Earlier this year, the world’s most powerful tidal turbine launched off the Orkney coast, where it will spend the next 15 years generating enough clean energy to power about 2,000 households in the U.K. “O2” is the novel development of the Scottish engineering company Orbital Marine Power, which manufactured the 74-meter-long design during the last decade and a half.
Anchored in the turbulent waters in the Fall of Warness off the northeastern point of Scotland, the 2MW machine is connected to the onshore electricity network of the European Marine Energy Centre. The testing facility uses the powerful currents flowing through the channel from the North Atlantic Ocean to the North Sea—these streams reach 7.8 knots at spring tides—to produce a reliable electricity source for local communities. During its stay, “O2” will also support the center’s hydrogen electrolyzer, which is the first in the world to produce the pure element through tidal velocities, and further aid in broad decarbonization efforts.
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Chicago-based photographer Reuben Wu (previously here and here) recently photographed the Nevada SolarReserve, a grouping over 10,000 mirrors which power nearly 75,000 homes both day and night during its peak season. Wu photographed the mass of reflective panels during nightfall, allowing the brilliant colors of the sunset to be doubled into the shining surfaces below. Wu likens the energy facility to a topographic ocean, considering it one of the greatest land art installations ever built.
One of Wu’s previous series “Lux Noctis” recently won a grand prize in Photo District News’ The Great Outdoors Photo Contest. You can see more of Wu’s natural and manmade landscapes on his Instagram and Facebook.
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First the sea gave birth to life. Now, thanks to a trio of Philippine-based inventors, it is giving birth to light as well. Led by engineer Lipa Aisa Mijena, the team has developed a lamp that’s capable emitting light for 8 hours on just 1 cup of saltwater. Not only are the Philippines prone to natural disasters like typhoons and earthquakes but the country is made up of over 7,000 islands, most of which do not have access to electricity, says the team. But one thing they do have is the sea, an abundant source of saltwater that can now be used to light homes and, in emergencies, power cell phones.
The saltwater-powered lamp uses the same science that forms the basis of battery-making. Where they differ from batteries is that the entire reaction is safe and harmless. Moreover, there are no flammable materials or components that go into lamp. Used 8 hours a day, every day, the team says the lamp can provide light for 6 months (or even over a year if used more efficiently) without having to replace any parts.
Over the past year or so SALt (Sustainable Alternative Lighting) has won 7 different sustainability and entrepreneurial awards. If interested, you can enter your name and email on their website to receive product updates but right now the team is focusing on building lamps for their target communities. (via Web Urbanist)
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