Green energy: Rooftop unit generates electricity in moderate wind

Green Energy Technologies LLC launched its WindCube, a 60 kW rooftop wind turbine designed for on-site power generation by commercial and industrial power users in urban and suburban locations. The turbine, which captures and amplifies the wind, fills a previously unmet need for wind turbines that can be placed into service in a very small footprint and take advantage of the nation’s net ...

06/01/2009


Windcube is said to produce the same amount of energy as a traditional (50 ft dia) turbine in a 22x22x12 ft framework. It generates electricity by running its motor backwards using an impeller (the opposite of a propeller), eliminating the need for a gearbox.

Windcube is said to produce the same amount of energy as a traditional (50 ft dia) turbine in a 22x22x12 ft framework.

Green Energy Technologies LLC launched its WindCube, a 60 kW rooftop wind turbine designed for on-site power generation by commercial and industrial power users in urban and suburban locations. The turbine, which captures and amplifies the wind, fills a previously unmet need for wind turbines that can be placed into service in a very small footprint and take advantage of the nation’s net metering laws. [

See wind power photo gallery and a WindCube diagram that explains the science of wind capture

.]

The turbine is available as a single (60 kW) or dual (120 kW) system, and in rooftop or tower-mounted designs. The product is modular to satisfy a customer’s electrical requirements, and produces the same amount of energy as a traditional (50 ft dia) turbine in a 22 x 22 x 12 ft framework. Expected users include industrial companies, commercial office buildings, big-box retailers, college campuses, and electric users in remote locations.

The WindCube features a patent-pending design that relies on the wind tunnel effect known in physics as the Bernoulli Principle. While the rest of the wind industry generates energy through the use of freestream wind, the WindCube captures and amplifies the wind, which produces more kilowatt hours (kWh). As the wind comes into the WindCube shroud, it becomes concentrated, creating increased velocity and, in turn, more power, the company says. Because of the amplification effect, the WindCube can capture wind energy as low as 5 mph.

The WindCube generates electricity by running its motor backwards using an impeller (the opposite of a propeller), eliminating the need for a gearbox. This lowers the cost of ownership, because the gear box is the source of most of the maintenance problems and failures on conventional wind turbines.

The American Recovery and Reinvestment Act of 2009 federal stimulus law reportedly contains a provision that allows buyers of “small wind” systems (up to 100 kW) an uncapped investment tax credit of 30% of the total installed cost for systems placed in service between now and 2016.

The American Wind Energy Association predicts the federal subsidy could help the small-turbine market grow by 40% to 50% annually, a boost that would parallel the growth of the U.S. solar photovoltaic industry after a similar 2005 initiative. Most states provide some form of applicable renewable energy incentive. Ohio, for example, offers a tax rebate of 40% (capped at $200,000) of the overall project cost on facilities served by the state’s investor-owned utilities.

www.getsmartenergy.com

www.controleng.com





No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
2015 Top Plant: Phoenix Contact, Middletown, Pa.; 2015 Best Practices: Automation, Electrical Safety, Electrical Systems, Pneumatics, Material Handling, Mechanical Systems
A cool solution: Collaboration, chemistry leads to foundry coat product development; See the 2015 Product of the Year Finalists
Raising the standard: What's new with NFPA 70E; A global view of manufacturing; Maintenance data; Fit bearings properly
Special report: U.S. natural gas; LNG transport technologies evolve to meet market demand; Understanding new methane regulations; Predictive maintenance for gas pipeline compressors
Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again
Migrating industrial networks; Tracking HMI advances; Making the right automation changes
Understanding transfer switch operation; Coordinating protective devices; Analyzing NEC 2014 changes; Cooling data centers
Upgrading secondary control systems; Keeping enclosures conditioned; Diagnostics increase equipment uptime; Mechatronics simplifies machine design

Annual Salary Survey

After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.

The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.

Read more: 2014 Salary Survey: Confidence rises amid the challenges

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
This article collection contains several articles on the vital role that compressed air plays in manufacturing plants.