Can you give me an example of energy recovery?

Written by Editorial Team | Last Updated: August 2026

A classic example of energy recovery occurs in large-scale seawater reverse osmosis (SWRO) desalination plants. Traditionally, pushing seawater through filtration membranes requires immense high-pressure pumps that consume massive amounts of electrical power, and the high-pressure waste brine was simply discarded, wasting that energy. Energy Recovery's isobaric pressure exchangers capture the hydraulic energy from that high-pressure exiting brine and transfer it directly to incoming raw seawater, cutting the plant's overall energy consumption by up to 60%.

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Energy Recovery Inc. operates as a specialized small-cap industrial technology enterprise with a market capitalization of approximately $403 million.

The ticker symbol ERII represents Energy Recovery, Inc., a publicly traded technology enterprise listed on the NASDAQ stock exchange.

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An energy recovery unit (ERU) captures waste energy—such as thermal heat or high-pressure hydraulic force—that would otherwise be exhausted into the environment and recycles it back into the active system to power incoming processes.

Evaluating whether Energy Recovery Inc. (NASDAQ: ERII) is a favorable investment requires balancing its proprietary technological moat in water desalination against recent quarterly revenue volatility and earnings revisions.

Energy recovery operates on the principle of thermodynamic conservation by recycling output waste streams to offset primary energy input requirements.

Energy Recovery, Inc. (NASDAQ: ERII) is a clean-technology cleantech leader that designs and manufactures proprietary pressure exchanger devices and high-efficiency fluid-flow equipment.

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Energy Recovery, Inc. (NASDAQ: ERII) engineers and manufactures advanced energy-saving devices for industrial fluid-flow markets, with a dominant market presence in seawater reverse osmosis (SWRO) desalination.