Unirac Unveils New ISYS Single Access Tracker for Commercial and Utility Solar Arrays at SPI 2011

New ISYS Tracker Offers Versatility, Value and High Load Volume to Commercial and Utility Solar Projects

DALLAS, Texas, October 18, 2011 — Unirac, Inc., North America's leading provider of infrastructure for solar power systems, debuted the new ISYS Single Axis Tracker at the Solar Power International (SPI) trade show opening today in the Dallas Convention Center. Available immediately for order at a highly competitive price, it is the most robust and versatile ground mount tracker system on the market today, able to work with any space or module system. Unirac backs the ISYS Tracker with the industry-leading 20-year structural performance warranty.

"The module-agnostic ISYS Tracker perfectly complements Unirac's product line, reinforcing our position as a single source for solar infrastructure needs," said Juan Suarez, Unirac's senior director of engineering and program management. "In conversations with EPCs, utilities and solar integrators, we identified a distinct need for a higher-load capacity tracker requiring fewer foundation installations and offering quick assembly and reduced maintenance. Our confidence in our engineering allows Unirac to accompany the ISYS Tracker with an industry-leading 20-year warranty."

Designed for large-scale solar installations, the ISYS Single Access Tracker brings Unirac's reputation for engineering excellence and innovative design to an increasingly savvy solar market. It works with any standard solar modules, providing a flexible, highly versatile tracking solution for solar arrays. As with many of Unirac's other products, the ISYS Tracker allows for module pre-assembly. Optimized for quick construction, there is no field fabrication required and minimal foundation installations are needed. With up to 20 modules fitting on each foundation — four times that of competing solutions — building time and materials are noticeably reduced

The ISYS Tracker is made with highly durable structural tubes that reduce material costs and enhance structural integrity. This combination of strength and design enables the ISYS Tracker to withstand up to 25 psf of snow and 120 mph winds while GPS and tilt sensors ensure a precise and unparalleled tracking system. It's also resistant to corrosive environments, further protecting its functionality and increasing return on investment for buyers. Standard bearings have been replaced by a no-maintenance, long-life sleeve/bushing to ensure parts performance over the long haul. The ISYS Tracker's simple, off-the-shelf hydraulic actuation system, featuring one hydraulic drive per 50kW, delivers the highest level of durability and reliability available on the market today.

Unirac's full line of innovative PV mounting solutions, including the ISYS Single Access Tracker, is on display in SPI booth 3037 through Thursday, October 20. (See today's other press announcement, "Unirac Introduces SolarMount (E)volution Residential PV Mounting System at SPI 2011.")

Links embedded in this release:
• ISYS™ Tracker: http://www.unirac.com/utility/utility-products/isys-tracker-utility
• SPI: http://www.solarpowerinternational.com
• SolarMount™ (E)volution: http://unirac.com/residential/residential-products/solarmountevolution-residential

About Unirac®
Unirac, a Hilti company, is North America's leading provider of infrastructure for solar power systems. Recognized as an industry innovator on both the product and process side, Unirac is one of the fastest growing companies in the solar industry. Unirac has achieved certifications for both ISO 9001:2008 for QMS and ISO 14001:2004 for EMS. Its industrial-grade solar mount solutions meet ‘Made in America', ‘Buy American', ARRA and Ontario Power Authority FIT and microFIT criteria. For more information about Unirac, please visit http://www.unirac.com.

©2011 Unirac. Unirac, ISYS Tracker and SolarMount are trademarks or registered trademarks of Unirac in the United States and/or other countries. All rights reserved.

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