Energy Recovery Solutions for Low Pressure RO Systems

Energy Recovery has spent 30 years perfecting the reliable, field-proven, and trusted PX Pressure Exchanger technology. Consuming no electrical power and engineered with only one moving part made of highly durable and corrosion-resistant ceramic, the PX Pressure Exchanger offers substantial energy savings and ease of integration resulting in reduced operational expenditures.

The LPT Turbocharger is also a cost-efficient energy recovery solution offering long-term reliability and versatility in a compact footprint, designed for low-pressure applications such as multi-stage brackish reverse osmosis water treatment.

Water Products Catalog

energy recovery devices (ERDs), reducing the energy needs, costs, and emissions associated with reverse osmosis desalination.

Energy Recovery has spent decades perfecting devices that capture and recycle otherwise wasted pressure energy. We have a suite of energy recovery devices (ERDs) that can operate at different pressures, dramatically reducing the energy needs, costs, and emissions associated with reverse osmosis desalination.

Our industry-leading energy recovery solutions include the PX® Pressure Exchanger®, Ultra PX™, and Turbocharger. Combined with our family of pumps, our solutions are trusted around the world by plants of all sizes to meet their specific energy recovery needs.


Available in multiple configurations, the PowerPlay raises the bar on SWRO plant performance. Constructed with state-of-the-art technology, each component of the PowerPlay is virtually maintenance free and backed with service from a single, trusted source. Download the one-sheet to learn more.

Optimizing Amine Process Design Using Liquid-Phase Turbochargers


Acid gas removal is a critical process step in natural gas processing and syngas production for ammonia and other uses. Application of a liquid phase turbocharger to the acid gas removal unit (AGRU) results in significant energy savings and improvement to reliability, availability and maintainability (RAM) of the plant. This paper describes conventional configurations with high-pressure pumps and new configurations utilizing liquid-phase turbochargers. Design of the equipment, process operations and controls, and reliability analysis are included. The results of a RAM study comparing conventional configurations to those incorporating liquid-phase turbochargers in multiple cases are also presented. From the RAM study, it can be concluded that flow sheet configurations that include a liquid phase turbocharger consistently provide lower plant downtime and maintenance costs as compared with conventional flow sheet configurations. This is in addition to the energy savings that result from energy recovery with the application of the liquid phase turbocharger to the AGRU. For the reference plant used in the study, the maintenance cost savings are as great as $2.5M over the 20 year lifetime of the plant and average annual downtime reduction is as much as 19.8 hours.

IsoBoost for Gas Processing Overview

This video animation describes the IsoBoost™ hydraulic system for gas processing. The skid-mounted solution recovers pressure energy at gas plants and ensures reliable operations, making plants safer and more profitable, with three times the life of a conventional pump.

GP Turbo Overview

This video shows how the GP Turbo works. The GP Turbo is the turbocharger at the heart of Energy Recovery’s IsoBoost system. IsoBoost is a hydraulic system that recovers pressure energy for gas processing. It provides reliable operations for gas processing, making plants safer and more profitable, with three times the life of a conventional pump.

Advanced TurboCharger Product Demo

Energy Recovery is proud to present our improved Advanced TurboCharger line. Take a tour with Senior Technical Manager, Eric Kadaj, as he explains the key features and benefits of this new and improved centrifugal solution. With patented volute insert technology and solution enhancements, our turbocharger product line is now the most flexible, efficient, and reliable centrifugual Energy Recovery Device (ERD) in the industry today.

Energy Recovery in China

China has been turning to seawater reverse osmosis (SWRO) as a way to ease the severe stress on fresh water resources, and ninety percent of Chinese desalination plants use Energy Recovery’s technology to harness fluid flows and pressure energy. Watch this video to hear experts in the Chinese desalination industry talk about their experience with Energy Recovery over the past ten years.

Chinese version available

Advanced TurboCharger Animation

With Energy Recovery’s Advanced TurboCharger™ (AT) with volute insert technology, plant operators can recover a significant portion of this wasted energy and transfer it back to the seawater reverse osmosis feed stream. This energy recovery device, or ERD, reduces the amount of pressure the high-pressure pump must create — greatly reducing the amount of power that’s needed to produce water. With the Energy Recovery TurboCharger, there is minimal downtime versus days or weeks with other methods. Suitable for both high-pressure seawater and lower-pressure brackish reverse osmosis systems, Energy Recovery TurboChargers offer substantial savings for lower investment solutions — especially in locations where power costs are heavily subsidized or there’s a need to reduce upfront capital costs. The device is easy to install and has a compact footprint. The Energy Recovery TurboCharger is a turnkey solution that requires minimal installation time, operator training and plant design.


面对日益严峻的水资源短缺,中国各水利机构与各大全球水处理公司建立了合作伙伴关系,致力于建造 中国现今最大的反渗透海水淡化厂。美国能量回收公司始终为主要的海水淡化厂提供高效领先的能量回收设备,并 在中国拥有90%的市场占有率,每日供水估约50万立方米。

Turbocharger Energy Analysis

The Turbocharger Energy Analysis tool allows you to quickly and easily calculate the boost provided by the Advanced Turbocharger (AT) in your plant. It is meant to assist you with the preliminary design. Results may vary. Please contact us for your specific design requirements.


English Metric

Turbo. Performance
Energy Rate calculation uses industry standard centrifugal pump efficiencies.

Turbocharger Model / Size:
Permeate Flow:
Pump Discharge Pressure:
Specific Energy Consumption:
In this calculation the assumption for cost of power is 0.08 [$/kWh].
Energy Savings:
Energy Savings assumes an existing pump efficiency of 75%.

Congratulations! Now that you have sized the Turbocharger to your plant, check out our AquaBold HPP Selector to incorporate the Energy Recovery AquaBold into your plant. Go now

Want to learn more? Our global support team can help design an energy saving solution for you today. Contact Us.