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Western Renewable Energy Generation Information System (WREGIS) Commences Operations

California Launches a Market-based Mechanism to Encourage Investment in Renewable Energy

Santa Clara, CA - June 28, 2007 - APX, Inc., a leading infrastructure provider for North American environmental and energy markets, is pleased to announce that the Western Renewable Energy Generation Information System (WREGIS) commenced operations this week. Registration is open now for power generators, utilities, marketers and qualified reporting entities wishing to participate in the WREGIS market, subject to verification and approval of the WREGIS administrator.

California is the first state to launch its renewable energy program under WREGIS. Other western states are expected to launch their renewable energy programs under WREGIS in the next months.

Renewable Energy Certificates (RECs) will be issued 90 days following the generation month end, meaning that Certificates for June 2007 renewable power generation will be issued September 29, 2007. APX environmental market technology will track and register WREGIS Certificates that will be the basis for renewable energy certificate trading across the Western Electricity Coordinating Council (WECC) region served by WREGIS. WECC comprises the entire Western Interconnection. With a footprint of 1.8 million square miles and members operating in 14 states in the Western U.S., two Canadian provinces, and the Northern portion of Baja, Mexico, WECC is the largest geographically of the eight North American Electric Reliability Council regions.

A web-based hosted system, APX technology creates and tracks a unique, traceable digital certificate for every MWh of renewable energy generated by generating units registered with WREGIS or imported into WREGIS. Retail electric suppliers use the system's certificates to report compliance with regulatory requirements set by the states and provinces, including power purchases to meet Renewable Portfolio Standards (RPS), or with voluntary renewable energy program requirements. The system also records ownership and facilitates transfers of the certificates to support the effective operation and integrity of renewable energy and environmental markets.

About APX, Inc.
APX is North America’s leading infrastructure provider for environmental markets in renewable energy and greenhouse gases, as well as corporate environmental management. APX technology is now the system of choice for every major renewable energy market in North America, including the PJM (GATS), ISO New England (NEPOOL GIS), WECC (WREGIS), MISO (M-RETS) and ERCOT (Texas REC) markets. Users of these systems include more than 400 of the nation’s largest environmental commodity brokers, marketers, generators, and load serving entities. APX also provides technology, strategic consulting, and expert operational services to assist wholesale power market participants reduce costs and improve performance in power scheduling, settlement, market operations, and demand response programs. A privately held company, APX is headquartered in Santa Clara, CA

Contact:
Reiner Musier
APX, Inc.
Chief Marketing Officer
617.699.0929
rmusier@apx.com