Megan Treacy for TreeHugger: A new technology developed by University of Nebraska-Lincoln electrical engineering doctoral student Jie Cheng solves both of those problems by harnessing the excess wind energy usually wasted as spillage and storing it for use when wind speeds dip, making wind turbines more efficient and consistent. Cheng's system converts and directs the extra wind energy to an air compression tank, where the energy is stored until wind speeds dip below the maximum capacity. Using a rotary vane machine that is connected between the turbine's gearbox and generator, excess energy is diverted and stored in the air compression tank. When the wind dies down, the tank then kicks in and reverses airflow back to the rotary vane machine to generate electricity. In a recent study of his prototype, Cheng found that a 250-kW system would produce an additional 3,830 kWh of electricity per week or an additional 16,400 kWh per month based on historical wind data from Springview, Nebraska. That extra electricity is about 18 times the monthly energy use of a typical American household. Cont'd...
Utility-industry working group says California's goals, changing technologies call for new utility business models, new products for customers
North Carolina's Renewable Energy Portfolio Standard (REPS) has encouraged investments in renewables and the energy economy statewide.
Smarter Grid Solutions' Active Network Management Technology Connects 48MW to create the UK's largest single Actively Managed Wind Farm
Smarter Grid Solutions has been working with SP Energy Networks to connect 48MW at Aikengall Wind Farm, at Dunbar in south-east Scotland. This new connection is the latest delivery from SP Energy Networks' ARC Project.
New high-speed SEL microgrid control solutions allow seamless integration of distributed energy resources (DERs) to maintain uninterrupted power to critical loads
PROLEC-GE Launches Three-Phase Pad-Mounted Transformer Extension for Solar Industry ---- Optimal Technical Support Helps Solar Market Navigate Key Industry Challenges ---- Evolved Technology is One More Way GE is Helping Customers Optimize Existing Grid Infrastructure, Add More Renewable Resources
The solar systems will be built on rooftops throughout the Orange County and Inland Empire industrial corridors.
North America leads the market today, but the largest market over the long term is likely to be Asia Pacific, report concludes
State leaders in the Northeast should keep watch of neighboring states to share best practices and innovative solutions for microgrids. Stakeholders can also look nationwide to other states including California and Illinois, where officials are creating incentives and addressing regulatory challenges.
The SESG Lab can replicate the operation of a substation and feeders of an electrical utility distribution system, thanks to its core infrastructure that supports organizations in the research and development of leading edge solutions and systems pertaining to smart grid technology.
Battery/Storage companies raise $69 million; Energy Efficiency companies raise $140 million
Today's grid is ancient, aging ungracefully and facing enormous challenges in the future - from meeting America's day-to-day electricity needs to national security threats.
Just imagine, a super grid will allow Norway's hydro-power to light up a restaurant in Italy, Belgium's wind farms to provide power to a home in U.K., and Saharan solar power plants to run a factory in Germany.
We need to apply good systems engineering principles to policy creation to address the benefits gaps that confront multifamily stakeholders today.
The rapid growth of distributed energy resources (DER), a non-transmission alternative, is raising concerns over the viability and necessity of new transmission lines.
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