ARTICLES
An investigation into the failure modes yielding white structure flaking and axial cracking in wind turbine gearbox rolling bearings
Premature failures of rolling bearings occasionally occur in wind turbine gearboxes [1]. One of the main failure modes is flaking involving a microstructural change. This type of flaking is called white structure flaking (WSF) or white etching crack (WEC) because the area of the microstructural change observed in the flaking cross sections looks white after […]
Hideyuki Uyama, Hiroki Yamada
Vibration frequency analysis can be a powerful tool for diagnosing mechanical and electrical problems in wind turbine drive trains. However, it seems that some people are still skeptical about the accuracy of the technology. Perhaps those people have had bad experiences with vibration analysis in the past. Poor vibration analysis could yield false positives or […]
Andrew Engle, Availon, Inc.
NEWS
The Maryland Energy Administration (MEA) recently announced the release of a report detailing a high-resolution geophysical and oceanographic survey of the entire Maryland Wind Energy Area. The survey was the first by any state to map the seafloor geology of a complete Wind Energy Area. This information is critical to optimizing the siting, design and […]
June 4, 2014
The U.S. Environmental Protection Agency has released its Clean Power Plan proposal, which for the first time cuts carbon pollution from existing power plants, the single largest source of carbon pollution in the United States. The proposal will protect public health, move the United States toward a cleaner environment and fight climate change while supplying […]
June 4, 2014
Meeting the world's growing need for energy will require more than $48 trillion in investment over the period to 2035, according to a special report on investment released by the International Energy Agency (IEA) as part of the World Energy Outlook series. Current annual investment in energy supply of $1.6 trillion needs to rise steadily […]
June 4, 2014
Participants tackle strategies toward reaching 2030 renewable energy goals. New markets, technological breakthroughs and an end to political uncertainty—that’s just three of the advances the wind energy sector is expecting in the coming years, revealed industry leaders at the EWEA 2014 Annual Event in Barcelona. “We will see advanced technology that is subsidy free,” said Anne McEntee, […]
April 10, 2014
For the second year, wind industry professionals gathered to participate in WIND EXPO, a conference and exhibition focusing on the growing wind energy market in Japan. The event, held February 26-28 at Toyko Big Sight, in Tokyo, Japan, was one of eight concurrently running exhibitions that were part of World Smart Energy Week. With major […]
April 10, 2014
GE recently announced the opening of its Global Wind Turbine Drivetrain Repair Innovation Lab at the site of GE’s Power Generation Repair Technology Center in Albany, N.Y. The facility is equipped with advanced technologies to support fast development and innovation for repairs to the wind turbine’s gearbox and rotor, creating a lab environment to simulate […]
April 10, 2014
Morgan Advanced Materials Electrical Carbon business announces that its range of carbon brushes are ideal for wind turbine applications, with new designs and materials that are resulting in longer brush life and increased generator uptime. Morgan’s globally available brush grades are created to be environment-specific, offering maximized performance in low or high load conditions. Leading-edge […]
April 10, 2014
Precision Metalforming Association (PMA) member Kevin Harberts called on Congress today to support industry efforts to bring manufacturing back to America—for good. Harberts, president and CEO of Kryton Engineered Metals, Inc. in Cedar Falls, Iowa, testified today before the U.S. House of Representative’s Committee on Small Business Subcommittee on Economic Growth, Tax, and Capital Access […]
April 10, 2014
3TIER, a Vaisala company operating in renewable energy assessment and forecasting, recently announced the public release of wind and solar annual averages from its global datasets as part of Google’s Map Gallery launch. Through its collaboration with Google, 3TIER is excited to make this contribution to the global community and vastly improve access to wind […]
April 10, 2014
The start of 2014 marks the culmination of extensive planning and preparation for the energy storage industry’s national trade association, and today the association announced a new name, new leadership, and the launch of a new website. The organization will now conduct business as the Energy Storage Association (ESA) and Matthew Roberts, a former House […]
March 11, 2014
DONG Energy has signed an agreement to sell half of its 50 percent share in the 630 MW offshore wind farm London Array 1 to La Caisse de dépôt et placement du Québec (La Caisse), for a total sum of GBP 644 million (approx. $1.06 billion). With this partnership divestment DONG Energy delivers on the […]
March 11, 2014
Vestas has secured a 15-year service contract covering 42 V90-2.0 MW turbines at the Topolog Dorobantu wind power plant in Tulcea County in Romania. The last of the 42 turbines is expected to be installed within April this year. The order has been placed by LUKERG Renew, a joint venture between ERG Renew and LUKOIL. […]
March 11, 2014
Cape Wind today again defeated the efforts of its opponents to block the country’s first offshore wind farm. In a significant decision, the U.S. Court of Appeals for the District of Columbia Circuit upheld the FAA’s approval of the Cape Wind project, rejecting every argument that had been advanced by the project’s opponents. “The Alliance […]
February 11, 2014
