Over the 20 to 25 year design life of a wind turbine, only the first two are usually covered under warranty. As the end of the warranty period approaches, it’s common practice to give the turbine a thorough inspection, identify problems, and have … [Read more...]

  A cross section of the AW3000, shows some internal components. 1. Rotor Blades 2. Hub 3. Control System Monitoring 4. Main Shaft 5. Gearbox 6. Disk Brake 7. Generator Coupling 8. Cooling Radiator 9. Wind Measuring System 10. Generator 11. Yaw … [Read more...]

This article comes from The Switch The Switch CEO Jukka-Pekka Mäkinen As wind and solar compete as serious contenders in generating more energy for the world, the energy produced must be as cheap, if not cheaper, than that of fossil-based sources, … [Read more...]

Chance model single-phase bolted pole brackets offer three configurations in two sizes. Models include a dual-mount (shown), a single-mount, and a single-L style. For more options, the system includes an offset extension that can be added to any … [Read more...]

T he aerodynamic shape of wind- turbine blades generates lift and torque, which is eventually turned into electrical power. Improving a blade’s shape so it captures just a percent or two more would be a significant improvement. One such redesign … [Read more...]

The FusionDrive combines a gearbox and PM generators into one unit. Wind gear manufacturer Moventas and generator manufacturer The Switch, have announced the delivery of the first commercial order for FusionDrive, a gearbox and generator combination. … [Read more...]

This is the executive summary from a report issue by NREL. Historically, federal incentives for renewable energy development in the U.S. largely consisted of the investment and production tax credits (ITC and PTC), the accelerated depreciation … [Read more...]

The Eco Wisper mount on a hinged tower that has been lowered to access the 20-kW turbine. The 30 blades are said to rotate almost without noise. Renewable Energy Solutions Australia (RESA) is the owner of what it calls the world’s most advanced … [Read more...]

GE turbines like this 1.6-MW unit are finding more work in Canada. Advanced technology wind turbines have been selected to power nine new wind projects in Ontario, Canada, adding about 650 MW of clean energy to the province’s electricity grid. When … [Read more...]

In July 2011, the Federal Energy Regulatory Commission (FERC) issued Order No. 1000 on transmission planning and cost allocations. The reforms in Order 1000 should lead to more transmission investment, especially in transmission projects intended to … [Read more...]