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Sandia innovation eliminates reliance on rare-earth magnets for large-scale wind turbines

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Motivated by the need to eliminate expensive rare-earth magnets in utility-scale direct-drive wind turbines, Sandia National Laboratories researchers have developed a fundamentally new type of rotary electrical contact. Most of the current utility-scale wind turbines are dependent on rare-earth magnets, Koplow said. 1 milliohm).

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Study suggests arrays of closely-spaced counter-rotating vertical-axis wind turbines could enhance power density of wind farms by up to an order of magnitude

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Dabiri suggests using optimized arrays of smaller vertical-axis wind turbines to increase the power density and reduce the cost, and visual, acoustic, radar and environmental impacts, of wind farms using giant horizontal-axis turbines. constraint limits the amount of power that can be extracted from a given wind farm footprint.

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EIA: natural gas-fired reciprocating engines are being deployed more to balance renewables

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Because these units can start and stop quickly and operate at partial loads, they have become increasingly important in areas with high shares of renewable electricity generation from wind and solar. The plant, which started commercial operation in 2011, consists of 18 reciprocating engine generators with 9.1

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US to hold second auction for renewable energy on Outer Continental Shelf

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The US Bureau of Ocean Energy Management (BOEM) will hold its second competitive lease sale for renewable energy on the US Outer Continental Shelf (OCS) on 4 Sept., offering nearly 112,800 acres offshore Virginia for commercial wind energy leasing. Map of the Virginia wind energy area. The area is located 23.5 Click to enlarge.

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GE Energy Acquires ScanWind for Offshore Wind Sector Expansion

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ScanWind is a developer of advanced drive train and control wind turbine technologies aimed at offshore deployment. First offshore prototypes were to be installed in 2011. The ScanWind turbine technology will join GE’s family of wind turbines that includes the GE 1.5-megawatt The GE wind portfolio also includes the 2.5

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Global investment in renewable power reached $270.2B in 2014, ~17% up from 2013; biofuel investment fell 8% to 10-year low

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Global investment in renewable power and fuels (excluding large hydro-electric projects) was $270.2 Global investment in renewable power and fuels (excluding large hydro-electric projects) was $270.2 billion set in 2011. billion of final investment decisions on offshore wind projects in Europe. billion, up 39% from 2013.

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Government of Saskatchewan launches renewable diesel program

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The Government of the Saskatchewan launched a new renewable diesel program as part of the provincial 2011-2012 Budget. The five-year, $26 million program will provide a 13 cent per liter grant to eligible renewable diesel producers. The program will wind up in 2016.

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