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| Nextek's new solar power application  Nextek Power Systems and the Town of Hempstead have announced the commissioning of the first commercial-scale installation of solar electricity Direct Coupled to Allen-Bradley PowerFlex 700 series motor drives, integrated in the Town Hall's HVAC system. This is the southern face of Hempstead's Town Hall where a 256-panel, 40-kilowatt solar energy system is supporting Allen-Bradley motor drives without any hardware modification. The solar PV contribution carries 2 motors during the peak of the day, seamlessly changing the power source to grid-supplied Alternating Current as the sun goes down, watt for watt. The electrical efficiency of the Nextek Power Gateway PV interface is 98%.A smaller PV array can now be used to generate the desired number of kW hours than ever before. This reduced up-front capital expenditure, combined with the benefit of the avoided grid power purchases, lower demand charges and other control benefits improve the Town's Return on Investment by 30% to 40%. The Nextek Power Gateway directly connects locally generated power and grid power to electronic loads in a building. Nextek's Direct Coupling technology creates highly efficient, flexible, uninterruptible Direct Current power networks in buildings. write your comments about the article :: © 2006 Construction News :: home page |