Follow this tag to curate your own personalized Activity Stream and email alerts.
Touted as the world’s first renewable energy-powered, suspended sky train, a new transportation system has been unveiled in Chengdu, the capital city of China’s southwest Sichuan Province. Photo: CCTV The project, titled the Dayi Air Rail Project, is a first-of-its-kind demonstration... View full entry
Imagine plugging in to your brick house. Red bricks — some of the world’s cheapest and most familiar building materials — can be converted into energy storage units that can be charged to hold electricity, like a battery, according to new research from Washington University in St... View full entry
![Solar panels need batteries to properly optimize their energy generating capacities. Image courtesy of Wikimedia Commons / [[User::DDDDDDDDD|:DDDDDDDDDDD]].](https://archinect.gumlet.io/uploads/5c/5cce378c228ccc4dcbc6bc7d312fed2c.jpg?fit=crop&auto=compress%2Cformat&enlarge=true&w=514 "Solar panels need batteries to properly optimize their energy generating capacities. Image courtesy of Wikimedia Commons / [[User::DDDDDDDDD|:DDDDDDDDDDD]].")
manufacturing of lithium-ion batteries is scaling up rapidly to meet the growing demand for electric vehicles and large systems installed in power grids or at solar farms. As prices for lithium-ion batteries drop — they fell by half from 2016 to 2019, according to BloombergNEF — banks are taking another look. — The Los Angeles Times
The Los Angeles Times takes a look at the growing viability for utility-scale battery operations. One stumbling block for municipalities and building operators alike has been finding affordable battery storage options to keep sustainably generated energy flowing when the sun isn't shining... View full entry
After years of playing third fiddle to solar and wind power, geothermal energy is poised to start growing again in California. [...]
The new plants will be the first geothermal facilities built in California in nearly a decade — potentially marking a long-awaited turning point for a technology that could play a critical role in the state’s transition to cleaner energy sources.
— Los Angeles Times
The Los Angeles Times on California's efforts to increase, potentially double, the share geothermal energy contributes to the state's electricity mix by adding new plants. Traditionally, the much higher upfront cost of geothermal plants (compared to solar or wind farms of comparable capacity)... View full entry
The BIG day has arrived for the Danish firm's long-awaited, waste-to-energy ski slope Amager Bakke, which was inaugurated and fully opened to the public today. At 41,000m2, the year-round ski plant — also dubbed “CopenHill” — was the winning proposal of a 2011 competition that was... View full entry
[Dr. Raman's] prototype device employs radiative cooling, the phenomenon that makes buildings and parks feel cooler than the surrounding air after sunset. As Dr. Raman’s device releases heat, it does so unevenly, the top side cooling more than the bottom. It then converts the difference in heat into electricity. — The New York Times
After driving through a dark village in Sierra Leone, UCLA electrical engineer Aaswath Raman got the idea of building a device that didn't have to rely on solar power or wind to generate electricity after dark. Dr. Raman and his research team did just that, and built a prototype thermoelectric... View full entry
U.S. investors are beginning to smell an opportunity in the waste-to-energy market, where livestock dung and food garbage is traded. Interest is being fueled by new state laws and by demand from companies such as UPS Inc.
After a lull in investor interest stretching back a decade, attention to “anaerobic digestion” waste-to-energy is surging in the United States, developers in the sector have said.
— The Los Angeles Times
This post is brought to you by The Land Art Generator Initiative What does the future of renewable energy look like? As the world comes together over the next decade to meet the challenge of global climate change, solar, wind, and other renewable energy installations will be distributed across... View full entry
Teams that compete in the Solar Decathlon Build Challenge must design and construct fully functional houses...In the National Showcase, teams will ship their houses to the Smithsonian Folklife Festival in June 2020 for display and operation on the National Mall. In the Local Build, teams will showcase their built houses in their communities and bring a smaller representative exhibit to the Smithsonian Folklife Festival — US Department of Energy
Plus, both the Solar Decathlon and Race to Zero competitions are merging, creating the new, U.S. Department of Energy Solar Decathlon. For further details check out the 2019–2020 Competition Guide View full entry
Once the crane arm locates and hooks onto a concrete block, a motor starts, powered by the excess electricity on the grid, and lifts the block off the ground. [Designed to withstand wind, the crane arm] can smoothly lift the block, and then place it on top of another stack of blocks—higher up off the ground. The system is “fully charged” when the crane has created a tower of concrete blocks around it. — Quartz
A tower of the concrete blocks — weighing 35 metric tons each — can store a maximum of 20 megawatt-hours (MWh), which Energy Vault says is enough to power 2,000 Swiss homes for an entire day. According to Quartz, the Swiss startup is planning to build their first commercial plants starting... View full entry
Google parent Alphabet is spinning off a little-known unit working on geothermal power called Dandelion, which will begin offering residential energy services. [...]
Dandelion chief executive Kathy Hannun said her team had been working for several years "to make it easier and more affordable to heat and cool homes with the clean, free, abundant, and renewable energy source right under our feet," and that the efforts culminated with the creation of an independent company outside of Alphabet.
— phys.org
"In the U.S., buildings account for 39% of all carbon emissions, mostly from the combustion of fossil fuels for heating and cooling," Dandelion CEO Kathy Hannun explains on the company's blog. "In the Northeast, heating and cooling is particularly carbon-intensive due to the relatively high use of... View full entry
Vancouver has become the latest city to commit to running on 100% renewable energy...The city’s ambition is to be the world’s greenest city by 2020 despite the fact Canada has had one of 'the most environmentally irresponsible national governments' for the last 10 years, [said Vancouver deputy mayor Andrea Reimer.] — The Guardian
Which city will be next? Which will pull through? According to The Guardian, Vancouver is one of the latest to join the more than 50 cities that have already announced their plans to run on 100% renewable energy, including San Diego, San Francisco, Sydney, and Copenhagen.Related:First Texas town... View full entry
Because of its size and intense radiation, Texas leads the nation in solar energy potential, but the solar industry has long struggled to get a foothold in the state... and solar energy currently makes up a tiny percentage of the state’s energy portfolio. That’s beginning to change. Improving technology has driven down the price of solar power, making it more competitive with other resources — even without incentives, developers say. — The Texas Tribune
The municipal utility of Georgetown, a Texan city of about 55,000, recently signed a 25-year contract with SunEdison to buy 150 megawatts of solar power as well as 144 megawatts of wind power from the EDF Renewables wind farm through 2039 -- reportedly being the first city-owned utility to take... View full entry
A team of researchers at Michigan State University has developed a new type of solar concentrator that when placed over a window creates solar energy while allowing people to actually see through the window.
It is called a transparent luminescent solar concentrator and can be used on buildings, cell phones and any other device that has a clear surface.
— msutoday.msu.edu
SolarCity, the Silicon Valley solar installer, has quietly begun to offer some homeowners a lithium-ion battery pack made by electric carmaker Tesla to store electricity generated by their rooftop photovoltaic arrays. Stem, another Silicon Valley company, will sell or lease a $100,000, 54-kilowatt-hour battery pack to businesses so they can arbitrage the grid by storing electricity when rates are cheap and then using that energy when they’re high. — qz.com
