Apex Compressed Air Energy Storage, LLC

Apex is a Houston, Texas based company created with a vision to develop, construct, own and operate compressed air energy storage (CAES) plants. CAES is a proven power storage and generation technology with unique capabilities to satisfy emerging grid and power market needs. We are pursuing CAES as a market-based solution without reliance on government subsidies, and development and operation of our projects will adhere to our core values. The Apex management team possesses exceptionally deep power industry experience encompassing power project development, marketing, trading, power plant operations and finance. Our highly accomplished management team is supported by an investor with broad experience in energy storage, further enhancing Apex’s ability to achieve its project development objectives. Compressed air energy storage (CAES) is a unique in its ability to efficiently store and redeploy energy on a large scale in order to provide low-cost energy and enhance grid reliability. A CAES power generation facility uses electric motor-driven compressors to inject air into an underground storage cavern and later releases the compressed air to turn turbines and generate electricity back onto the grid. Suitable storage media can include underground salt dome caverns, depleted oil/gas reservoirs, underground aquifers, or in certain cases abandoned underground hard rock mines. Compression normally occurs during offpeak hours, when power prices are low. During hours of high electric demand, compressed air is withdrawn from the cavern, preheated, and introduced to one of several combustors. In the combustors, natural gas is fired to further heat the air, and the hot, expanding gases are used to drive expansion turbines. These turbines are connected to a generator, which produces electricity for the grid.