Coal and Gas to Stay Cheap, but Renewables Still Win Race on Costs
This year's edition of BNEF's long-term forecast sees $11.4 trillion investment in global power generation capacity over 25 years, with electric vehicles boosting electricity demand by 8% in 2040.
Virtual Power Plants Get Around Solar Power's Intermittency Problem
Richard Martin for MIT Technology Review: Attempting to harness the power of distributed rooftop solar installations to make its grid more flexible and reliable, New York utility Consolidated Edison is launching a pilot program this summer to link dozens of small solar arrays into a single, software-connected power plant. The utility is working with solar power developer SunPower and energy storage company Sunverge to create a “virtual power plant”—a network of distributed assets that functions as a unified resource on the grid.
The project will include 300 homes with a combined total of 1.8 megawatts of solar capacity and batteries that can store up to four megawatt-hours of electricity, enough to run 300 average U.S. households for about 10 hours. Cont'd...
State of the Market: Wind Power Projects in Egypt
The broad range of wind energy project sizes and locations in Egypt demonstrates the increasing importance of the country as a renewable energy producer, supplier, modular manufacturer, skills trainer and investment opportunity.
Solar Signage Board
Since they have to be lit up at night, the advantages of using independent solar modules and inbuilt battery have many advantages.
New Solar Cell Device Surpasses Theoretically Predicted Efficiency Limit
Thomas Burton for Energy Technology Matters: A team of researchers at the Massachusetts Institute of Technology (MIT) published a paper last week in the journal Nature Energy that described how they built a working solar thermophotovoltaic device (STPV) that enables solar cells to break through a theoretically predicted ceiling on how much sunlight they can convert into electricity. With this revolutionary new technology, the researchers show the potential of how solar panels can generate even more energy than theoretically determined by harnessing some of the panels’ waste. To learn more about the STPV technology, read on!
Since 1961, the Shockley-Queisser Limit established an absolute theoretical limit on traditional solar cell efficiency regarding energy conversion. A single-layer of silicon cells—the type of cells most widely used in today’s solar panels—has an upper limit of 32 percent. But currently, researchers are studying ways to increase this overall efficiency by using multiple layers of cells or converting the sunlight first to heat before generating electrical power. This latter method uses devices called STPVs, which the MIT team used in their study. Cont'd...
Saving the Earth by Making Energy Industry's Boardrooms Diverse
Ainslie Chandler for Bloomberg: The U.S. energy sector accounts for 83.6 percent of the country’s carbon emissions, according to the Environmental Protection Agency, so tackling climate change effectively requires their participation. Some experts worry the lack of diversity in their leadership is hindering that shift.
Energy-sector boards are the least diverse of any industry globally, with 8.2 percent of seats occupied by women, compared with an average of 10.5 percent for all businesses, according to data compiled by Bloomberg. That translates to an average of just 0.7 women on the board of each of the 650 energy companies in Bloomberg’s review.
More than 170 countries signed the Paris Agreement in April, which aims to limit the global temperature increase to below two degrees Celsius. If this target is going to be met and the transition to a “de-carbonized” economy made, companies will need to fundamentally change, so leadership teams also have to change, said Rachel Kyte, chief executive and special representative of the UN Secretary-General at Sustainable Energy for All.
“It’s like this bus is coming toward us,” Kyte said of climate change and the transition to renewable energy. “If you keep asking the same people and they keep coming up with the same answer, we’re not going to manage this transition very well.” Cont'd...
Storage Solutions for Alternative Energy
One obstacle that is holding back adoption to renewables is the lack of any efficient means of storing this energy. However, some highly innovative solutions might be able to help solve the issue of preserving alternative energy for long-term use.
Dubai Is Building the World's Largest Concentrated Solar Power Plant
George Dvorsky for Gizmodo: They like to do things big in Dubai, including a newly-approved concentrated solar power project that will generate 1,000 megawatts of power by 2020—and a whopping 5,000 megawatts by 2030.
The Dubai Water and Electricity Authority (DEWA) has announced the launch of the world’s largest concentrated solar power (CSP) project. Located on a single site within the Mohammed Bin Rashid Al Maktoum Solar Park, the plant will consist of five facilities. The first phase of the project is expected to be completed either in late 2020 or 2021, at which time it’s expected to generate 1,000 MW of power. By 2030, this plant could be churning out five times that amount—enough to raise the emirate’s total power output by 25 percent.
By comparison the Ivanpah CSP in California (which is currently the world’s largest) generates about 392 MW of power. Morocco’s Ouarzazate solar power plant will provide about 580 MW of power once it’s complete in 2020. Cont'd...
Southern States Lead Growth in Biomass Electricity Generation
Several states, especially those in the South Census region, have increased their electricity generation from biomass.
The Pantex Renewable Energy Project (PREP)
The wind farm is playing a key role in helping Pantex achieve President Obamas directive that the federal government lead the way in clean energy and energy efficiency, with his Administrations goal for the federal government to get 20% of its electricity from renewable resources by 2020.
Construction of the largest land-based wind turbine ever built in the United States.
“Reaching New Heights” uses a combination of time-lapse footage, aerial photography and behind-the-scenes action shots to document the steps involved in building MidAmerican Energy’s first concrete wind turbine tower, located at the company’s Adams wind farm in Adams County, Iowa. At 379 feet from ground to hub, the concrete turbine is more than 100 feet taller than its neighboring turbines constructed with steel towers.
Australia's Carnegie Wave Energy Project Sets World Record
Joshua S Hill for CleanTechnica: Australia’s Carnegie Wave Energy Project has set a new world record after completing 14,000 cumulative operating hours, the highest ever recorded.
The news was announced by the Australian Renewable Energy Agency (ARENA) this week, which provided $13.1 million in funding. The $40 million project uses CETO wave energy technology, and was the world’s first array of wave power generators to be connected to an electricity grid. For the past 12 months, the CETO 5 project has used an array of three offshore wave power generators to provide electricity and potable desalinated water to Australia’s largest naval base, HMAS Stirling, on Garden Island in Western Australia.
“ARENA is proud to help local companies, like [Carnegie Wave Energy Limited], develop new renewable energy solutions that have the potential to change the way the world generates electricity,” said ARENA CEO Ivor Frischknecht. “We do this by providing Australian innovators with the support they need during the critical RD&D period, when patient funding is essential.” Cont'd...
Middle Schoolers Dream Big with Their Solar and Battery Powered Cars
The race, sponsored by the Energy Department, its National Renewable Energy Laboratory (NREL), the Alliance for Sustainable Energy, Jeffco Public Schools, and Dakota Ridge High School, is designed to boost interest in science, technology, engineering, and math (STEM) fields.
Moving off-the-grid and into a micro-house in the Southern Adirondacks.
New York State resident Matt Holleran refuses to be one of the many Americans paying one third of their income on housing. For that reason, hes moving off-the-grid and into his very own micro-house in the Southern Adirondacks.
The Importance of Removing Contaminants From Biogas
The cleaning or purification of Biogas involves a complex mix of filtration and separation technologies but even the most basic of installations can benefit from the advantages of clean, dry gas.
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