The solar division of Allied Building Products announces its partnership with Enecsys, the leader in reliable solar micro inverter systems for residential and commercial applications.

Philadelphia, PA - Today, the solar division of Allied Building Products, a division of Oldcastle Inc., the North American holding company for CRH plc (NYSE: CRH), announces its partnership with Enecsys, the leader in reliable solar micro inverter systems for residential and commercial applications. Allied will be the first North American distributor for Enecsys, and will be the first in the US to hold inventory of the company's micro inverters. The products are on schedule to be stocked in April at Allied's New Jersey, Santa Ana and Hawaii warehouse locations.

The Enecsys solar grid-connected micro inverter enhances the growth of residential and commercial markets by substantially improving performance and reducing the cost of solar PV system ownership.

"This demonstrates how Allied is constantly working to expand the variety and quality of our product offerings," said David Jenkins, General Manager of Allied's Solar Division. "With Enecsys in the US market we intend to support the thousands of contractor customers purchasing micro inverter products."

"The Enecsys micro inverter enables solar PV systems to harvest between 5 and 20 percent more energy over their lifetime," said Peter Mathews, VP North America Sales for Enecsys. "A micro inverter is sitting behind the solar module so it is of crucial importance that it has the same lifetime, reliability and environmental specification as the module. Our inverter thus operates at full performance from -40 degrees C to + 85 degrees C."

The Enecsys micro inverter's patented design eliminates electrolytic capacitors, the most common cause of failure in inverters, so its life expectancy matches that of solar modules. This is a major breakthrough for the solar PV industry and the product is backed with a unique 20-year warranty.

Last month, Enecsys won the award for Excellence in the Field of Environmental Technology at the CleanEquity Awards Ceremony for its micro inverter. The inverter eliminates high-voltage, direct current wiring and enhances system optimization by monitoring the performance of each solar module. It also eliminates the string inverter, a common source of failure.

Allied Building Products Corp. will be exhibiting at PV America at booth #656, and Enecsys will be in attendance.

About Enecsys
Enecsys Limited, develops, manufacturers, and markets world-leading, highly reliable, grid-connected solar micro inverters and monitoring systems for residential and commercial photovoltaic systems that offer an outstanding value proposition. The micro inverter maximizes energy harvest and converts the DC power from each solar module into quality AC power for supply to the electricity grid. The advantages of Enecsys solar micro inverters include: maximized energy harvest, improved safety, increased lifetime and reliability, enhanced performance monitoring, and simplified PV array design and installation. The monitoring system tracks, in real-time, the performance of each solar module and transmits the information through a robust built-in wireless communication system that connects to the Internet.

Headquartered in Cambridge, UK, the company also has sales and support offices in Bad Homburg, Germany and in Redwood Shores, California. For more information, please visit http://www.enecsys.com.

About Allied Building Products Corp.
Allied Building Products Corp. distributes building products to specialty contractors from over 180 locations throughout the US. Allied is a division of Oldcastle, Inc., the North American holding company for CRH plc (NYSE: CRH). Allied's Solar Division supplies solar panels, mounting hardware, inverters and monitoring systems to qualified solar contractors. For more information, please call 1 (877) 870-7887, or visit
http://solar.alliedbuilding.com/.

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Press Contacts:

Allied Building Products Inc.
Jen Lynch
Definition Branding And Marketing
(212) 660-2555 ext. 11
jen.lynch@definitionbam.com

Enecsys
Donna Wilson
TechnoPR Limited
(510) 744 1263
media@enecsys.com