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In June 2017, Deutsche Windtechnik´s French unit will begin providing maintenance for turbines from Vestas for the first time.

The volume of wind power installed globally rose from 198 GW to 487 GW between 2010 and 2016. This trend is set to continue

Plan grows its Upper Midwest wind energy fleet by 60 percent 

Xcel Energy announced details about new wind farms and the next phase in its plans for one of the nation’s largest wind energy investments. By adding 1,550 megawatts of new wind generation in the Upper Midwest, the proposal is Xcel Energy’s largest to date with a total of seven wind farms to be built in Minnesota, North Dakota, South Dakota and Iowa. 

The nation’s No. 1 utility wind provider is continuing its low cost renewable energy leadership, growing the company’s regional wind portfolio by 60 percent while providing enough energy to power more than 800,000 homes. 

“This investment in renewable energy keeps bills low for customers while giving them the clean energy they want and helping us achieve 63 percent carbon-free energy by 2030,” said Chris Clark, president, Xcel Energy-Minnesota. “Wind energy is at historically low prices right now so we’re able to reduce emissions while securing long-term cost savings for our customers.” 

Investments will deliver cost savings over 25 years 

Xcel Energy is proposing a combination of owned projects and power purchase agreements representing more than $2.5 billion in capital investments. Xcel Energy estimates that the proposed wind projects will save more than $4 billion in fuel and other costs, over the life of the projects. The company is taking advantage of federal production tax credits to secure low wind energy prices, part of Xcel Energy’s ‘steel for fuel’ strategy. Advances in turbine technology, improved wind forecasting and a newly expanded transmission system play a role in the ability to build new wind farms. 

“We’re significantly increasing the amount of wind generation on our system in part due to the recent completion of Midwest transmission projects that connect wind-rich areas to our customers,” said Clark. 

Wind projects deliver economic benefit to rural areas 

Xcel Energy’s plans are projected to generate nearly $200 million in property taxes over the life of the projects, benefiting the local communities. In addition, the projects are estimated to create approximately 1,500 construction jobs and about 80 full time jobs when the wind farms are operational. Landowner payments are expected to total more than $150 million over the life of the projects. Wind developers generally estimate about 200 temporary construction jobs and a dozen full-time jobs for a large, 200 megawatt wind farm. 

Project details 

750 MW self-build projects—proposed in October 2016 

Freeborn Wind Energy, a 200 MW project located in Freeborn County, Minnesota, and Worth and Mitchell Counties, Iowa developed by Invenergy 

Foxtail Wind, a 150 MW project located in Dickey County, North Dakota, developed by NextEra Energy Resources 

Blazing Star 1, a 200 MW project located in Lincoln County, Minnesota, developed by Geronimo Energy 

Blazing Star 2, a 200 MW project located in Lincoln County, Minnesota, developed by Geronimo Energy 

800 MW newly proposed projects 

Crowned Ridge Wind Project, a 300 MW build-own-transfer project and a 300 MW purchased power agreement. The project will be located in Codington, Deuel and Grant Counties, South Dakota, developed by a subsidiary of NextEra Energy 

Lake Benton Wind Project, a 100 MW build-own-transfer project in Pipestone County, Minnesota, developed by a subsidiary of NextEra Energy 

Clean Energy 1, a 100 MW power purchase agreement project in Morton and Mercer Counties, North Dakota, developed by ALLETE Clean Energy 

All projects are subject to state and local regulatory approval. If accepted, projects will be in service by 2020. 

About Xcel Energy 

Xcel Energy provides the energy that powers millions of homes and businesses across eight Western and Midwestern states. Headquartered in Minneapolis, the company is an industry leader in responsibly reducing carbon emissions and producing and delivering clean energy solutions from a variety of renewable sources at competitive prices. 


ABO Wind orders three N131/3000 turbines

Prysmian Group, world leader in the energy and telecom cable systems industry, has been awarded two new contracts for offshore wind farms in Germany (Merkur OWF) and Denmark (Horns Rev 3 OWF). 

In 2016 Nordex consolidated its position as market leader in Turkey. 

It is the endeavour of every renewable energy company to maximize energy generation as well as to reduce energy consumption

The design of a wind turbine gearbox is challenging due to the loading and environmental conditions in which the gearbox must operate.

Wind turbines face harsh environmental conditions that are even more challenging for offshore units. Proper selection of specialty lubricants that allow wind turbines to run with maximum availability by avoiding non-scheduled shutdowns is one of the key contributors to achieving fast return on investment. 

The fixed and variable operations and maintenance (O&M) costs are a significant part of the overall LCOE of wind power. O&M costs typically account for 20% to 25% of the total LCOE of current wind power systems  Actual O&M costs from commissioned projects are not widely available.


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Wind and solar energy are two major components of renewable energy for a sustainable energy future of India. Increasing energy demand, non-availability of conventional energy resources and  amount  of emission of pollutants from commercial energy generation are major critical issues in considering wind and solar as alternative energy sources. The wind flow produces aerodynamic forces on the turbine blades to rotate and the rotation of the turbine’s shaft is transferred through a gearbox to an electrical power generator, which produces the power into the electrical grid system. Since the wind flow is a natural phenomenon, the power derived from the wind sources shows high variability and intermittency.