Energy Management

AZoCleantech

SWT-3.0-101 Direct Drive Wind Turbine from SIEMENS AZoCleantech SIEMENS offers the SWT-3.0-101 direct drive wind turbine. The compactly designed generator deployed in this wind turbine has fewer moving parts compared to ... and more »

AZoCleantech

L90 -2.5 MW Direct Drive Wind Turbine from Lagerwey Wind BV AZoCleantech Lagerwey Wind BV offers the L90 -2.5 MW direct drive wind turbine. This wind turbine deploys a permanent magnet generator offering optimum energy production ... and more »

AZoCleantech

ENERCON E-82 Wind Turbine from ENERCON AZoCleantech ENERCON offers the ENERCON E-82 wind turbine suitable to deploy in locations with medium wind speeds. This wind turbine incorporates an upwind type of rotor ... and more »

Pat Quinn, governor of Illinois, has signed legislation that initiates a study of the energy performance of state-owned buildings. This process sets the stage for the state to adopt energy efficiency benchmarks for existing state buildings.

Piedmont Natural Gas (PNG), an energy services company, has received approval from the Public Service Commission of South Carolina for three new energy efficiency programs in the state. The programs are designed to encourage energy efficiency for residential and commercial customers.

The Scottish Government has launched a new boiler scrappage scheme under which up to 5,000 households in the country can claim GBP400 off the cost of a new boiler.

Wind Energy Update’s head of research Pamela Muckosy interviews Peter Asmus, lead author of the latest Wind Energy Operations and Maintenance Report, on issues facing developers and operators both today and in years to come.

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Pacific Crest Transformers, a manufacturer of liquid-filled distribution transformers, will be highlighting the PCT WTSU step-up transformer, specially designed for the wind farm turbine market in Booth 10037. The PCT WTSU transformer addresses the needs of the wind farm turbine. It reduces lost revenues due to down time and provides a lower total cost of ownership compared to standard off-the-shelf distribution transformers. Standard transformers experience frequent failures when used in wind farms, due to heat build-up from rapid and irregular thermo-cycling, frequent fault conditions, and build-up of gasses from arcing that occurs when inexpensive tap changers are used.

To mitigate these issues, the Model WTSU features a design that includes round coils, a cruciform, mitered core with heavy-duty clamping and a proprietary pressure plate design, as well as a premium no-load tap changer. The PCT design features circular windings which spread the radial forces evenly over their circumference and have cooling ducts throughout the coils, eliminating hot spots that lead to premature breakdown and ultimately to transformer failure. Coil-end blocking with heavy duty 3-gauge steel bracing and proprietary pressure plates contains the axial forces exerted during a fault condition. These forces can cause telescoping of the coils, shortening transformer life.

The WTSU has a cooling system that shortens the path that heat generated within the core and coils must take to reach the cooling fluid. It also features a tap changer with silver-plated contacts, for long-life and reliable operation.

“A wind farm’s down time is expensive, because it leads to lost revenue, as well the high costs of repairing or replacing damaged transformers,” says Pacific Crest Transformer VP Tom Steeber. “The step-up transformer is a key component of wind farm electricity generation and our WTSU is designed to meet the unique requirements

Vermont Public Radio

Lowell Wind Power Project Moves Forward Vermont Public Radio (Host) The project would be the first wind generator built in Vermont since GMP opened its smaller wind farm in Searsburg in 1997. Other projects have been ... and more »