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| About site: Construction and Maintenance/Materials and Supplies/Electrical/Lighting/Components and Parts/Controls and Buses - Nextek Power Systems, Inc. |
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| About site: http://www.nextekpower.com/ |
Title: Construction and Maintenance/Materials and Supplies/Electrical/Lighting/Components and Parts/Controls and Buses - Nextek Power Systems, Inc. Manufactures a building-side electric power controller integrating AC grid with DC storage and distributed generation directly coupled to loads for optimal efficiency and performance for lighting syst
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Nextek Power Systems - High Efficiency Distributed Generation Systems     The Nextek Power Gateway Featured Areas : •"See how it works," a graphical demonstration of Direct Coupling in action - watch...• Frequently asked Questions - view...• Was THOMAS EDISON right? DC Power workshop by EPRI. News: With Clinton Global Initiative, Nextek in African Secondary Schools. Read More The Town of Hempstead, N.Y., combines solar energy with innovative electrical distribution and variable frequency drives to control energy costs in a “green” way. Read More... • Paul Savage (CEO) demonstrates to MI Governer Granholm at the SAE2006 show. Read the article...  • Brown to Green: Town of Hempstead Uses Solar Energy to Power Town Hall HVAC System. More • IN DEPTH ANALYSIS EPRI study shows how Billions can be saved using Nextek's DC Power technology. Read More.. • California Energy Commission reports that Nextek’s Direct Coupling® Renewable Energy Systems are Projected To Save Billions Powering Data Centers. more... • Interview with Paul Savage (Audio MP3 file) • Nextek and Ballard Pump up the Volume more... • Philips invites Nextek into their booth at Lightfair. See the brochure. • California utilities rule that Nextek PV systems do not require a utility interconnect agreement. more... Download a Powerpoint Presentation with notes. Information on the 2005 Energy Tax Credit. Nextek Power Systems 89 Cabot Court Suite J Hauppauge, NY 11788 (631) 750-1000 THE PLATFORM FOR SMART POWER USE IN BUILDINGS  "I'd put my money on solar energy...I hope we don't have to wait till oil and coal run out before we tackle that." ~ Thomas Edison, in conversation with Henry Ford and Harvey Firestone, March 1931 Nextek Pioneers An Advanced Grid-Connected Renewable Energy Strategy The Nextek Power Gateway guides multiple sources of electricity, both from the grid and from any renewable source (like solar or wind) to building loads, only using the grid when necessary. This innovative routing device draws power first from any available renewable sources, then fills in as needed with power from the main utility grid. Unlike typical inverter-based systems which shut down automatically during power outages (called Anti-Islanding), the Nextek system continues to supply power from the renewable sources or, if none are available, from batteries. Nextek’s intelligent integration and distribution of power creates highly efficient uninterruptible hybrid electrical systems for buildings. The technology behind Nextek’s Power Gateway is called Direct Coupling®. It is based on two crucial trends in the power industry; the mainstream use of renewable energy, like solar and wind, and the increasing number of electronic devices used in buildings. Recognizing that renewable sources of energy produce DC (Direct Current) and that most electronic devices consume DC, a scientist at Brookhaven National Labs endeavored to directly connect those DC sources to DC loads, bypassing the need for inverters and rectifiers. Typical Solar Power System ~89% efficiency, solar panel to device.  Direct Coupling® System ~99% efficiency, solar panel to device Before Direct Coupling®, clean DC energy needed to pass though an inverter to change it to grid compatible AC, then through a rectifier inside the device, changing it back to DC. Now, with Nextek’s Gateway, power generated as DC remains as DC and is used without conversion, bypassing both the inverter and the rectifier inside the device. This not only increases efficiency, but also dramatically reduces the heat generated by fluorescent lighting ballasts, computer power supplies, and more. Nextek’s smart power distribution platform is at work in dozens of commercial installations across the U.S. Direct Coupling® provides a more efficient, cooler electrical system by using clean renewable energy where, when and how it is generated. Applications Direct Coupling® is designed for buildings where there are DC compatible loads that operate throughout the workday. These include: Fluorescent Lighting Ballasts DC outfitted Computer Servers Variable Frequency Motor Drives DC Motors Battery Charging/Battery Backup Plug-In Hybrid Vehicles (pending) Operating Installations Lighting Application: Grocery Store, Berkeley, CA This supermarket has a 30kW solar PV system Direct Coupled® to high efficiency DC Ballasts in the T8 fluorescent lighting fixtures. 90% of the power required for the lights comes directly from the solar panels at 99% efficiency. 10% (or more when it’s cloudy) comes from the grid, is rectified to DC, then added to the power from the solar panels. This acts as an emergency lighting system as well, even though they do not have batteries. During a power failure, only 10% of the lights go out and customers don’t even notice.  Air Handling Application: Hempstead, NY  A Variable Frequency Drive is a device that allows an AC motor to slow down and speed up as needed, saving energy and maintenance costs. This controller works more efficiently on DC. The 40kW system installed in a Town Hall improves the efficiency and reliability of the system. If there were an extended power outage, the Air Handling System would run whenever the solar panels were producing power. Datacenter Demonstration, Sun Microsystems, Newark, CA EPRI, working with Lawrence Berkeley National Laboratory and Ecos Consulting, engineered a DC-powered datacenter demonstration at Sun Microsystems' Newark data center in California. The project demonstrates how DC-powered servers or server racks can be operated with existing components, providing the same functionality. Increased efficiency and reduced heat generation from elimination of multiple AC-DC conversion steps are expected to save the industry over a billion dollars annually.  Mixed Application with Direct Coupled Lighting & Net Metering: Rochester, NY  This 40,000 sq ft office/warehouse is equipped with a 20kW solar PV system. Part of the system is dedicated to the lighting and is integrated with occupancy and daylight sensors. Additional solar power is inverted and sent back to the grid. The low-cost DC ballasts, equipped with an internal occupancy sensor connection circuit, allow easy integration of the high efficiency controls. Online graphical demonstrations at http://www.NextekPower.com illustrate the operation of the system.    Download This Brochure Home Company How it Works Products Applications Distribution News-Articles Contact MyNextek This Website is Powered by Solar Energy    |
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Manufactures | a | building-side | electric | power | controller | integrating | AC | grid | with | DC | storage | and | distributed | generation | directly | coupled | to | loads | for | optimal | efficiency | and | performance | for | lighting | syst |
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http://www.nextekpower.com/
Nextek Power Systems, Inc. 2008 August
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Manufactures a building-side electric power controller integrating AC grid with DC storage and distributed generation directly coupled to loads for optimal efficiency and performance for lighting syst
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