turbines
Latest
Six innovative wind turbine designs
By Cat DiStasio The International Energy Association (IEA) announced last week that renewable energy capacity around the globe has eclipsed coal power for the first time ever. Wind power makes up a large percentage of global renewable energy, and with all the recent technological innovations in wind turbine design, it's no mystery that it's become the fastest-growing form of clean energy. With refined technology, engineers have developed new devices that are more efficient and safer for birds. Some wind turbines can even generate energy while the air is still.
Study says wind turbines raise surrounding area temperature, but only at night
Who said the butterfly effect couldn't apply to renewable energy? Though wind farms are considered pretty green on the energy-generating spectrum, it looks like they, too, have an impact on the planet. According to a study published today in the journal Nature Climate Change, turbines can raise the local temperature -- albeit slightly. From 2003 to 2011, researchers monitored satellite data for west-central Texas, which is home to 2,350-plus turbines and four of the world's largest wind farms. In that decade, scientists observed a temperature increase of 0.72 degrees in wind farm regions compared to areas without turbines. That warming trend was especially marked at night, when the temperature difference between the ground and the air is highest. The temperature increase was also higher in winter; researchers say that these cooler, windier conditions cause turbines to generate more electricity and therefore create more heat. Since the study didn't find any change in daytime temperatures, it looks like we don't have to ring the global warming alarm just yet.
Inhabitat's Week in Green: supersonic biplane, urban algae farm and magnetic tattoos
Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green. Energy-efficient transportation soared to new heights this week as MIT unveiled designs for a supersonic biplane that promises to be the successor to the Concorde. Meanwhile Boeing, Airbus and Embraer partnered to develop a new breed of affordable biofuels, and Volkswagen used space foil to make cars safer. In hot car news, Porsche announced plans to release a plug-in hybrid Panamera in 2014, and we brought you sneak peeks of several sexy electric vehicles that will be unveiled at the New York Auto Show in just over a week: Fisker's Nina plug-in hybrid and Infiniti's new Nissan leaf-based EV.On the subject of energy efficiency, it was a big week for clean tech as Inhabitat reported that the world's most powerful wind turbine was just installed off the Belgian coast, and the National Ignition Facility flipped the switch on the world's first two-megajoule ultraviolet laser in an attempt to unlock nuclear fusion. Meanwhile, scientists discovered a link between trees and electricity by studying the way they affecty the concentration of positive and negative ions in the air, and OriginOil announced plans for an urban algae farm near Paris that will heat buildings while treating wastewater. The solar industry heard good news this week as a report showed that solar installations in the US more than doubled in 2011, and President Obama toured the states touting his "all of the above" approach to energy.This week Inhabitat also showcased several amazing public infrastructure projects - including a series of gigantic fruit-shaped bus shelters in Japan, gmp Architekten's gorgeous new Hangzhou South Railway Station, the fresh new designs for section 3 of NYC's High Line elevated park, and a soaring 30-storey-tall wood skyscraper in Vancouver.In robot news, a Virginia Tech team created a self-charging robo-Jellyfish that harvests hydrogen fuel from water, and we shared 6 incredible inventions made possible by nanotechnology. F.A.T. Labs released a Free Universal Construction Kit that can connect LEGOs to 8 other types of building blocks, and Amazon purchased a robot company to improve working conditions in its warehouses. As most of you probably know, This American Life issued a retraction of its Apple factory exposé - and while Mike Daisey may lost his credibility, we believe strongly that distrust in the integrity of his "reporting", should not be a reason for consumers to turn a blind eye to working conditions at Foxconn and other electronics ODMs. This week Nokia filed a patent for magnetic tattoos that could vibrate when someone calls, and we learned that free smartphone applications could consume 75% more energy than paid versions. Speaking of mobile phones, new research linked cellphone radiation during pregnancy to behavioral disorders in offspring so we looked at ways pregnant mothers can protect their babies from potential cellphone radiation exposure. Last but not least, we brought you an interesting high-tech clothing concept from Stella McCartney - a sports bra with a built-in heart sensor.
Inhabitat's Week in Green: shifting towers, hydrogen beads, and the shockwave engine for fuel efficiency
Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green. It was a big week for alternative energy as Inhabitat showcased a range of green fuel innovations that cut costs while bringing clean energy to the forefront. We looked at hydrogen 'Micro Beads' that could fuel cars for $1.50 per gallon, and we saw Michigan State University unveil a new shock wave engine that could triple fuel the efficiency of hybrid vehicles. XL Hybrids also got in on the action by releasing an add-on kit that can transform any gas-guzzler into a hybrid, and Google made waves by announcing their investment in biofuels startup CoolPlanetBiofuels and adding EV charging stations to Google Maps. Finally, to round out or green automotive news this week we also have to give a special shout out to Artega, who introduced their hot new SE Electric Sports Car - we can already hear the honks and catcalls! Off the road and out into the ocean, we showcased a design for underwater kite turbines that harvest energy from ocean waves, and we were wowed by Kinetura's shape-shifting Kinetower. In other architecture news, construction finally commenced on MVRDV's massive Amanora Vertical City Apartments in Pune, India -- a mixed use development totaling over 4.3 million square feet. We also saw several new developments on the solar power front - scientists in the United Kingdom are working on a solar-powered kit that could lighten the load of soldiers-and, more important, increase their mobility-by up to 50 percent. That seems like the perfect complement to OS' amazing GSR 110B - a retractable solar power system that delivers 40 watts on the spot with a combined solar and battery backup. Lightweight and easy to pack, the solar unit is easily deployed in emergency situations as long as the weather permits.
Philadelphia Eagles going self-sufficient on stadium energy from 2011, 30 percent of it renewable
Let's skip right past the cringe-worthy "Declaration of Energy Independence" slogan and look at what the Eagles are actually doing with their pro sports venue. The franchise that dresses in midnight green is aiming to smarten up its eco-green credentials with a new partnership with SolarBlue that will provide all of the Eagles' stadium energy needs for the next 20 years, after which point the team will be free to resell any surplus electricity back to the grid. 15 percent of the total output with be generated with spiral wind turbines erected around the top rim of Lincoln Financial Field, another 15 will come from 2,500 solar panels to be installed near the stadium, and the rest will be obtained from a biodiesel / natural gas plant. So it's not all renewable, but a nice step in the right direction, nonetheless.
World's largest offshore wind farm spins into action off the coast of Britain
They stretch up to two and a half times the height of Nelson's Column at Trafalgar Square, their number is close to a hundred, and their mission is to bring clean, renewable energy into British homes. Yes, we're talking about turbines. The latest wind farm to be erected near the Queen's most sovereign isles is said to be the largest in the world (for now) and promises to produce enough energy to keep 240,000 homes going -- the equivalent of half the county of Kent. It's part of the UK's grand plan to generate at least 20 percent of all its power needs through the taming of the winds and cost the Kingdom a cool £780 million ($1.2b) to build. That's admittedly a big bill to swallow, but there are worse things to blow your billions on... such as, say, the Millennium Dome.
Inhabitat's Week in Green: Ferrari, Porsche, and the Glucowizzard
The Week in Green is a new item from our friends at Inhabitat, recapping the week's most interesting green developments and clean tech news for us. This week Inhabitat marveled at all of the incredible, efficient, and oh-so-sleek vehicles unveiled at this year's Geneva Motors Show. We were excited to see Ferrari roll out its first hybrid vehicle, the 599 HY-KERS while Porsche upped the ante with its stunningly beautiful 918 Spyder hybrid. Finally, Tata unveiled the Nano EV, an all-electric version of the world's cheapest car. The Maldives also made waves this week with hopeful plans to float their sinking nation using miniature man-made islands. That may be a while off however, so in the meantime why not enjoy the comforts of home at sea aboard this bizarre sofa boat -- a steal at only $16,064. Rounding off our flotilla of floating news, Hexicon unveiled a smart design for a floating array of wind turbines that can be easily installed in deep seas. We also saw several developments in wearable tech that stand to change how we interact with the wired world. The Glucowizzard is a tiny solar powered chip that can be implanted in a person's wrist to easily monitor glucose levels. If implanting gadgets gets under your skin, then you might be a fan of Microsoft's Skinput system, which uses a micro projector to beam a touchscreen display onto your arm. And to power all that gear on the go, look no further than Bourne Energy's backpack power plant -- a bright blue generator that provides portable hydroelectric power.
1.2-megawatt underwater turbine project delayed
Apparently, Marine Current Turbines is having quite the time trying to install what would be "the world's largest tidal power project," as the installation that was slated to begin Monday will now be lucky to see completion this year. Dubbed SeaGen, the project will reportedly utilize "twin underwater turbines to generate 1.2-megawatts of electricity off the coast of Northern Ireland," which are said to "look and work very much like wind powered [alternatives]." Notably, the company even mentioned that the devices spin "too slowly to affect marine life," and just in case you're concerned about its future plans, it "intends to eventually build farms of turbines consisting of 10 to 20 pairs each." [Via TechMeme]
Proposals would turn highways into wind farms
Clogged highways and frustratingly waiting while your gas needle plummets to empty usually doesn't conjure up thoughts of green, but it seems like these very roads could become the source of a lot more energy. Several recent student designs have proposed that major roadways be retrofitted with various forms of wind energy collection devices, ranging from overhead turbines that collect energy from quickly-moving cars below to barrier panels (pictured after the jump) that harness the wind from closely passing vehicles moving in opposite directions. Ideally, the wind energy could then be sent back out to the grid to power nearby communities, light-rail transportation systems, or even intelligent billboards. Of course, most of these ideas are still in the research phase, and even if proven feasible, we can't imagine the up-front costs (or inconveniences of installing these things) to be minor, but we're sure that government subsidies should be able to to lend a helping hand.Read - Barrier panel prototype, via InhabitatRead - Overhead turbine design, via Inhabitat
Micro-turbines output micro-electricity for Hong Kong's micro-apartments
It's not just the fitness club types in Hong Kong attempting to generate a bit of renewable energy, inventor Lucien Gambarota -- the very man responsible for converting all that cardio into voltage -- is showing off some micro-wind turbines for even more power bill relief. There's currently only a single wind turbine on a small outer island providing energy to Hong Kong, the rest of the city just doesn't get enough wind for traditional turbines to do any good. Not so with Gambarota's new micro-turbines, which can generate electricity with as little as 2 mph of wind, and keep turning at all times from the slightest of breezes. The little windmills are actually gearwheels, mounted in a array. They can be arranged in different shapes and sizes, from two to thousands of square meters. The energy is put into a battery, which then powers appliances in the building. Currently the micro-turbines go for about $25 for a set of 20 gearwheels, but that price should drop considerably once they begin to be mass produced.[Thanks, nvyseal]
