Technological advances and new plant configurations have brought steady gains in the cost/performance of reverse osmosis desalination. As a result, the RO process has emerged as a cost-effective option for utilities in many water-limited areas as they seek to increase reliability and maintain, expand or diversify their supplies. Performance gains have come in several areas:

• Advances in reverse osmosis (RO) membranes yield higher productivity and higher salt rejection.
• Use of innovative pressure exchangers allows recovery of energy from saline concentrate.
• Ongoing improvements are being made to energy recovery devices, system hydraulic design and production distribution.
• Larger, and higher-efficiency, pumps and motors are yielding power and capital cost savings.
• New, larger-size membrane configurations reduce energy requirements per unit of output, as well as overall system size and cost.
• Increases in plant size enable economies of scale in both capital and O&M costs.
• Co-location with coastal power plants enables dual use of existing intake and discharge structures – reducing both energy and pressure requirements, and also yielding large reductions in capital and O&M costs.

Environmental Stewardship

Preserving and protecting the environment – our atmosphere, our ocean environment, and the area immediately surrounding our project sites – is a core value in Poseidon’s approach to development.. Learn more.