solarenergy
Latest
Trump reportedly seeks massive budget cuts to clean energy research
The Trump administration has made it very clear that it is pro fossil fuels and has little interest in pushing programs the promote renewable energy. Now, the Washington Post reports that the president's proposed 2019 budget slashes funds for Energy Department programs focused on energy efficiency. While the proposal is just a jumping off point, the fact that it seeks to cut such funding by 72 percent underscores where the administration's interests lie and in which direction its policies will continue to go.
Puerto Rico governor will discuss Tesla solar systems with Elon Musk
Following hurricanes Irma and Maria, millions of Puerto Rico residents were left without electricity and it's expected to take months for power to be restored. Well one person mused on Twitter whether Elon Musk could help out by rebuilding the island's electricity grid with solar and battery systems and Musk responded that it wasn't out of the realm of possibility.
IKEA’s selling home storage batteries for its solar panels
A rooftop of solar panels generating clean energy is great and all, but having somewhere to squirrel away that free juice is even better. After stepping into the shade for a good few months, IKEA began selling solar panels again last year with new teammate Solarcentury (a company that specialises in solar stuff). Today, the meatball-mad retailer is adding another piece of the off-grid puzzle to its shelves: A home storage battery.
Tesla's Solar Roof is available for pre-order
Tesla didn't quite fulfill its promise to start Solar Roof sales in April, but you thankfully haven't had to wait that much longer to pull the trigger. As of today, you can pre-order Tesla's stealthy solar power cells in textured or smooth variants ahead of the first US installations in the summer (2018 elsewhere). While the price will vary depending on your home, of course, the company estimates that a "typical" buyer will pay about $21.85 per square foot instead of $24.50 for a regular roof. Not that there will be much mystery regardless of what you pay -- Tesla is offering a cost calculator to figure out your real-world expenses.
Tesla ends SolarCity's door-to-door sales pitches
Tesla is used to selling cars online, but that's not how the recently acquired SolarCity liked to roll -- it preferred door-to-door sales pitches to get panels on your roof. Thankfully, you won't have anyone interrupting dinner going forward. Tesla has revealed that its solar energy division will stop those door-to-door sales in favor of internet and retail operations. It's what "most of our prospective customers prefer," the company says, and the other sales channels should more than make up for the loss. That will shake up jobs, but the roughly 1,000 people affected will either be moved to other sales methods or get a chance to interview for other positions at Tesla.
China is now the biggest producer of solar power
You probably don't think of China as a clean energy champion given its frequent problems with smog and continued dependence on coal power, but you may have to rethink your views after today. The country's National Energy Administration has revealed that its solar power production more than doubled in 2016, hitting 77.42 gigawatts by the end of the year. The country is now the world's biggest generator of solar-based electricity in terms of capacity -- it doesn't compare as well relative to population (Germany, Japan and the US could easily beat it), but that's no mean feat for any nation.
Solar beads can make some very cool lamps and flashlights
Conventional solar panels aren't exactly the prettiest objects on the planet, which is why companies like Tesla, SRS Energy and SunTegra have been focusing on blending this technology into roof tiles. As for those who don't have a roof or land to spare, Japan's Kyosemi Corporation has come up with an alternative solution that can let windows and glass walls soak up solar power as well. The magic ingredient? Just a web of "Sphelar" solar cell beads -- each with a diameter of 1.2 mm -- lined up inside any transparent substrate, meaning it can come in any shape or form while letting light travel through the gap between beads. Better yet, due to the spherical nature of these cells, they can capture light from almost any angle -- to the point where they can deliver a higher cumulative output than their conventional counterparts, according to the company.
ICYMI: Genetically-modified mosquitoes are coming
try{document.getElementById("aol-cms-player-1").style.display="none";}catch(e){}Today on In Case You Missed It: Voters in the Florida Keys may have passed a measure to use bioengineered mosquitoes to combat the Zika virus and Dengue fever, but it's still a battle to get a community to accept the insects. The FDA has approved use of altered bugs that are designed to mate, which would then result in offspring that would quickly die. You can get caught up on the back-and-forth, here.
Tesla runs an entire island on solar power
Now that Tesla has officially acquired SolarCity, it's not wasting any time showing what the combined entity can do. Tesla has revealed that it's running the island of Ta'u (in American Samoa) on a solar energy microgrid that, at 1.4 megawatts, can cover "nearly 100 percent" of electrical needs. It's not just the 5,328 solar panels that are key -- it's the 60 Tesla Powerpacks that offer 6 megawatt-hours of energy storage. While Ta'u is normally very sunny, the packs can keep it running for three days without sunlight. They don't have to worry about a cloudy day leading to blackouts.
Solar road tiles get their first public test
No, that's not an elaborate new Lite-Brite kit-- that's the possible future of energy. After years of work (and some last-minute delays), Solar Roadways has installed its first public energy tiles in Sandpoint, Idaho as part of a test. On top of producing a light show, the panels will generate power for the fountain and restrooms in a public square. They have heating elements, too, so they should keep running even in the heart of winter. And if you're not sure how well they'll work in practice, you can check on them yourself -- Sandpoint has a live webcam pointed at the tiles.
Elon Musk is working on a roof made of solar panels
Elon Musk's fondness for ambitious, out-of-left-field ideas isn't restricted to electric cars or rockets. During SolarCity's latest earnings call, the entrepreneur revealed that his energy-focused company is developing a "solar roof" -- not a roof with solar panels on it, a roof made out of solar cells. As Musk explains, people install millions of new roofs every year. Why not have them embrace solar power when they look for a replacement? Homeowners with old roofs tend not to install solar panels, since they know they'll have to rip everything off before long.
Apple creates a new company to sell solar energy
Apple has a new product quite unlike the ones you're used to: solar energy. The tech giant has formed a new subsidiary called Apple Energy LLC in order to sell surplus solar power generated by its farms in Cupertino and Nevada. As The Verge notes, the company's newest environmental responsibility report says it only generates enough energy to provide 93 percent of the electricity it needs worldwide. However, Apple might have plans to expand its farms even further to prepare for new projects, such as charging stations for the long-rumored Apple car.
Ikea is selling solar panels in the UK again
The UK government slashed solar subsidies earlier this year, however Ikea is still determined to sell the dream of a solar-powered home in Britain. Today, the company has launched three "Solar Shops" that sit inside its stores in Glasgow, Birmingham and Lakeside (Thurrock). These will be Ikea branded and manned by its own staff, who will be able to offer advice and give a provisional quote. Ikea will then hand over to UK solar specialist Solarcentury, which can take customers through the design and installation process. If the pilot is successful, Ikea says it plans to open Solar Shops in all of its UK stores "by the end of the summer."
ICYMI: Printing in 4D, solar panel breakthrough and more
#fivemin-widget-blogsmith-image-509705{display:none;} .cke_show_borders #fivemin-widget-blogsmith-image-509705, #postcontentcontainer #fivemin-widget-blogsmith-image-509705{width:570px;display:block;} try{document.getElementById("fivemin-widget-blogsmith-image-509705").style.display="none";}catch(e){}Today on In Case You Missed It: Scientists at Harvard have figured out how to print incredibly small, shape-shifting creations out of hydrogel that can then morph from 3D to 4D depending on water or heat is applied to them. Scientists figured out how to grow a material that could make solar panels cheaper. And a new jacket on Indiegogo captures heat from UV light then stores it in a steel mesh center to warm you up. If you need to catch up on big stories from the week, we recommend starting with Google's donations. And as always, please share any interesting science or tech videos, anytime! Just tweet us with the #ICYMI hashtag to @mskerryd.
New material can store solar energy to warm you up later
Solar projects are usually focused on generating electricity, but we could arguably save more power by storing heat. Scientists from MIT have created a new type of solid material that does exactly that. When exposed to sunlight, it assumes a "charged" state that can be maintained for long periods of time. However, when triggered with a small burst of heat, the material reverts to its original chemical composition, releasing a much larger amount of heat energy. Since the film is thin and transparent, scientists think it could be useful in the near future for defrosting your car's windshield and could one day heat your home or even your clothes.
UCLA discovers how solar cells' charges can last for weeks
Solar cells have always been inspired by photosynthesis, so it's only natural for researchers to take cues from different aspects of the energy-making process. A team of UCLA chemists, for instance, have developed a way that will allow solar cells to keep their charge for weeks instead of just a few seconds like current products are capable of. According to Sarah Tolbert, UCLA chem professor and one of the study's authors, they looked into plants' nanoscale structures that can keep negatively charged molecules separated from positively charged ones. "That separation is the key to making the process so efficient," she said.
Super-efficient solar cells can power homes in unforgiving areas
Scientists have long talked about black silicon (that is, silicon with nano-sized structures) having the potential to trump conventional solar power, and there's now some proof that this is happening. Aalto University researchers have developed black silicon solar cells that achieve a record 22.1 percent efficiency when turning the Sun's rays into usable energy. That's a 4 percent absolute boost over the previous best in black silicon, and good enough that the technology could finally be ready to reach the market and replace existing solar panels. Black silicon is far better suited to collecting sunlight at low angles, which is common in northern regions -- you wouldn't have to live in a sunny, forgiving part of the world to get the most out of clean energy. It should be cheaper, too. So long as these black cells translate well to mass production, you may have an easier time ditching the conventional power grid.
Apple invests in a solar farm that can power 60,000 homes
Apple makes much ado about using clean energy sources to power its buildings these days, and it just put its money where its mouth is... a lot of money. The company is investing a whopping $848 million in a First Solar plant in California's Monterey County that, according to Apple chief Tim Cook, should generate enough electricity to power 60,000 homes. Apple will get a 130-megawatt supply from the solar farm to light up buildings such as its future spaceship-like campus, while the remaining 150 megawatts will go to Pacific Gas & Energy's grid. Reportedly, this is the largest commercial deal to date in the solar industry -- it certainly eclipses many of the other green energy initiatives we've seen in tech, which tend to "only" require tens of megawatts.
The world's largest solar power plant is now up and running
Solar power just hit one of its biggest milestones, in more ways than one. First Solar recently finished building Topaz, a 550-megawatt plant that represents the largest active solar farm on the planet. And we do mean large -- the installation's nine million solar panels cover 9.5 square miles of California's Carrizo Plain. It's an impressive feat that should power 160,000 homes on Pacific Gas and Electric's grid, although it won't be alone at the top for very long. First Solar's Desert Sunlight farm will match that capacity once its last solar cells go online, and SunPower's 579MW Solar Star is due to go live in 2015. Not that there's a problem with that, of course. These solar plants have been a long time coming, and they promise eco-friendly energy for hundreds of thousands of Golden State residents. [Image credit: Center for Land Use Interpretation]
Solar power will give you non-stop water during bike rides
If you're a cyclist, you know the anxiety that comes with running out of water in the middle of a bike ride -- the last thing you want is dehydration when you're miles away from home. Design student Kristof Retezàr may just set your mind at ease, though. He recently developed Fontus, a bike-mounted device that uses solar power to convert air moisture into water for your drinking bottle. The key is its use of thermoelectric cooling. Solar panels generate electricity that cools the top of the device, where air comes in as you ride; as the moisture condenses, it drips water into a bottle below. The bottom stays warm, but that only accelerates the condensation process above.