Energy Recovery, Inc. (Nasdaq:ERII), a global leader of ultra-high-efficiency energy recovery products and technology for seawater desalination, announced today that it will release its third quarter results for fiscal 2009 on Thursday, November 5, 2009, after the market close. The Company will host a conference call for investors on Thursday, November 5, 2009 at 1:30 p.m. PT.

The conference call will be in a "listen-only" mode for all participants other than the sell-side and buy-side investment professionals who regularly follow the Company. The toll-free phone number for the call is (888) 549-7750 or (480) 629-9866 and the access code is 4171252. Callers should dial in approximately 15 minutes prior to the scheduled start time. A telephonic replay will be available at (800) 406-7325 or (303) 590-3030, access code: 4171252, until Thursday, November 19, 2009. Investors may also access the live call or the replay over the internet at www.streetevents.com and www.energyrecovery.com. The replay will be available approximately three hours after the live call concludes.

About ERI(R)

Energy Recovery, Inc. (ERI) is a leading manufacturer of energy recovery devices which help make desalination affordable by significantly reducing energy consumption. ERI's PX Pressure Exchanger(R) (PX(R)) device is a rotary positive displacement pump that recovers energy from the high pressure reject stream of SWRO systems at up to 98% efficiency with no downtime or scheduled maintenance.

The company has research, development and manufacturing facilities in the San Francisco technology corridor as well as direct sales offices and technical support centers in key desalination hubs such as Madrid, UAE, Shanghai and Florida. ERI service representatives are based in Algeria, Australia, China, India, Korea, Mexico, Taiwan and the Caribbean.

As the demand for clean, potable water increases, ERI is poised to face the global challenges ahead. For more information on ERI and PX technology, please visit www.energyrecovery.com.