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A recent national debate has arisen over the net energy and environmental benefits of ethanol as a substitute for gasoline in transportation fuels. Now a top government researcher in the field is coming to defense of the domestically-grown fuel additive.
The global rooftop solar market has the potential to exceed 2,000 GW of generation and 1,000 GWh of energy storage by 2050 through careful policy design, according to a new report.
Last week Renewable Energy Group, Inc. (REG) was awarded "BQ-9000 Certified Marketer" status from the National Biodiesel Accreditation Committee (NBAC), an affiliate of the National Biodiesel Board. REG is only the third company in the United States to earn both the BQ-9000 Accredited Producer and Certified Marketer status, according to the NBAC.
To seal leaking stoplogs at its six hydro stations on the Winnipeg River, Manitoba Hydro uses Hydro-Lite blast furnace slag.
The 3rd National Climate Assessment (NCA) was released earlier this month, painting a frightening picture of the spiraling costs of climate disruption to America and highlighting the need to price carbon dioxide (CO2) emissions. While President Obama has pledged action and the electricity industry nervously awaits new EPA regulations for power plant emissions, the most appropriate action remains politically impossible: carbon taxes, cap and trade and carbon pricing are all consistently used as divisive issues to excite the conservative base of the GOP.
Connecting the power grid to an ocean of distributed electrical sources poses some special challenges to utilities, which have, until now, been able to tightly control their power generation resources. Now, every large corporation is reevaluating its energy strategy, and many state and local governments are actively involved in creating renewable energy policy. For example, the Oregon legislature has mandated that 25% of the state's energy needs be met with renewable power by 2025. What are the challenges and how will we meet them?
In today's popular solar publications the focus is unerringly on solar's leading edge: technology, technique and policy, with occasional forays into finance and sales. What is often missing is cogent discussion on solar's trailing edge: operations and maintenance.
In tight economic times, equipment companies have a tendency to cut back on engineering resources ...
Grid-tied solar power requires better control and communications. Synchrophasor technology may be the answer to sucessfully integrating a plethora of solar power generating stations into the utility grid. Inverters must also be primed to get the most efficiency from solar cells, and apply that power most efficiently in the grid.
Mesa Scharf, PV Powered, explains that grid-tied solar power requires better control and communications. Synchrophasor technology may be the answer to sucessfully integrating a plethora of solar power generating stations into the utility grid. Inverters must also be primed to get the most efficiency from solar cells, and apply that power most efficiently in the grid.
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