30 Nov '17, 2pm

#WindPower…

First Full-Scale Evaluation of Gearbox Failure Generates Industry Interest November 21, 2017 Although the cost of wind energy has declined dramatically over the past two decades, operation and maintenance costs are often higher than anticipated at an average of half the power purchase agreement price. One of the primary drivers behind these costs are wind turbine gearboxes, which often require repair or replacement well before reaching their design life. A new article in the journal Wind Energy by National Renewable Energy Laboratory (NREL) researchers Yi Guo and Jon Keller, "Investigation of high-speed shaft bearing loads in wind turbine gearboxes through dynamometer testing ," summarizes the first full-scale assessment of operating conditions that may generate white etching cracks (WECs) in the bearings of wind turbine gearboxes—one of the most common causes of failure. ...

Full article: https://www.nrel.gov/news/program/2017/first-full-scale-e...

Tweets

Navy cites another failure of the basics in Lak...

navytimes.com 30 Nov '17, 9pm

The cruiser Lake Champlain’s May collision with a South Korean fishing vessel did not result in the extensive damage or lo...

Failure to end use of toxic herbicide glyphosat...

theecologist.org 29 Nov '17, 8am

A qualified majority of EU countries agreed the reauthorisation of Europe’s most used weedkiller, glyphosate, this week. A...

Marines to open first recruiting station outsid...

stripes.com 30 Nov '17, 10am

KAISERSLAUTERN, Germany — The Marine Corps is opening its first full-time recruiting station outside of the United States ...