ENERGY RECOVERY, INC. : Saudi Arabian Desalination Plant Doubles City's Water Supply with World's Leading Energy Recovery PX

ENERGY RECOVERY, INC. : Saudi Arabian Desalination Plant Doubles City's Water
          Supply with World's Leading Energy Recovery PX Technology

100,000 cubic meter per day mega-plant, Al Jubail, awarded by Acciona Agua to
Energy Recovery

SAN LEANDRO, Calif., September 9, 2013 - Energy Recovery Inc. (NASDAQ: ERII),
the leader in capturing reusable energy from industrial fluid flows and
pressures cycles revealed that it will be part of ACCIONA Agua's first
contract for a desalination plant in Saudi Arabia. The plant will process
enough seawater to bring 100,000 m³ per day of potable water for residents and
industrial uses.

Saudi Arabia's Marafiq Power & Water Utility Company awarded ACCIONA Agua a
contract to design, construct, and bring into service a desalination plant
called SWRO-4 by the end of 2014. Construction began in 2012 on the
mega-plant, which will use reverse osmosis (RO) to desalinate water for Al
Jubail, a city in the Eastern province of Saudi Arabia.

Worldwide, most desalination planning and construction companies using energy
recapture rely on Energy Recovery technologies to minimize energy costs.
Despite the reality that the Kingdom of Saudi Arabia enjoys some of the
world's least expensive electricity rates, Marafiq Power & Water Utility
Company and ACCIONA Agua still chose Energy Recovery's solutions because of
the unique combination of economic payback and the PX device's proven ability
to reduce the environmental footprint. Each year Energy Recovery's technology
will yield over 116 million kWh in energy savings for the Al Jubail plant and
reduce carbon emissions by 68,000 metric tons (the equivalent of taking more
than 14,000 cars off the road in the U.S.).

ACCIONA Agua's International Construction Director and Project Manager for the
Jubail Project, Manuel Manjón, notes, "Using Energy Recovery's technology was
important to our design because we want to offer Al Jubail the most
technologically advanced, most efficient, most reliable RO plant possible.
Given the size and scale of our Saudi project, we need our plant to run with
the best technology, and we're getting that from Energy Recovery. We have
been implementing isobaric Pressure Exchangers for the majority of our
desalination plants for almost a decade and the device's performance has
always exceeded our expectations."

"We look forward to collaborating with our clients on this important project,"
states Tom Rooney, CEO of Energy Recovery. "Considering the Kingdom's low
energy costs, the PX® technology was chosen to ensure high reliability and the
smallest environmental footprint - which speaks volumes about Marafiq and
Acciona's commitment to stay ahead of the technology curve - and to preserve
the environment."

Situated along the coast of the Persian Gulf, Al Jubail has intense water
needs. More than 50 percent of the Kingdom's drinking water comes from
desalination- a number steadily growing as unrenewable sources are depleted
for the population that has quadrupled over 40 years. Energy Recovery's
technologies for recapturing and reusing energy from fluid flows have already
proven highly efficient in several of Saudi Arabia's other desalination
plants. Al Jubail has three smaller RO plants, some operating with legacy
centrifugal energy recovery technology; this new ACCIONA Agua desalination
plant will double the current potable water available for the city's residents
and its industrial complex.

Additional Release Details

For an animated video showing how the PX device works, click here.
ACCIONA Agua http://www.acciona-agua.com

About Energy Recovery

Energy Recovery Inc. (NASDAQ: ERII) technology harvests power from
high-pressure fluid flows and pressure cycles. Through collaboration with
industry, Energy Recovery helps make industrial processes within water, oil &
gas, and other industries more profitable and environmentally sustainable.
With over 14,000 energy recovery devices installed worldwide, Energy Recovery
sets the standard for engineering excellence, cost savings, and technical
services to clients across the globe. Year after year, the company's clean
technologies save clients over $1.2 Billion (USD) in energy
costs.Headquartered in the San Francisco Bay Area, Energy Recovery has
offices in Madrid, Shanghai, and Dubai. www.energyrecovery.com

                                     ###

Media Contact:
Kristan Kirsh
kkirsh@energyrecovery.com
Energy Recovery
+510.746.5012



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Source: ENERGY RECOVERY, INC. via Thomson Reuters ONE
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