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Project Summary

Dresser-Rand will design, build, and test a full-scaled (500-kilowatt) version of a high-power density, bidirectional radial HydroAir turbine. The use of a radial design (versus axial) is expected to reduce turbine size and, as a result, cost. The HydroAir turbine is a crosscutting component that can provide any type of oscillating water column device with a power take-off (PTO). Dresser-Rand is teaming with device developer Ocean Energy (OE) to target the integration of the HydroAir turbine into an OE Buoy.

Project Snapshot
Project TitleHydroAir Power Take-Off System
Awardee HQ LocationTexas
DOE Funding Amount$2,500,000
Awardee Cost Share$820,000
Program AreaNext-Generation Technology Development and Manufacturing
Recipient TypeIndustry
Award TypeCompetitive Funding Opportunity Announcement
Year Awarded2013
Work LocationsCalifornia, Hawaii, Texas
Funding OpportunityFY 2013 MHK System Performance Advancement
Congressional District(s)HI-2, TX-18


What You Need To Know


This project supports research and development efforts toward the commercialization of large-scale and distributed marine and hydrokinetic energy (MHK) systems―important areas of energy science and technology in which the United States can establish leadership.

  • Build a full-scale 500-kilowatt PTO device and perform a no-load test at their San Diego facility and install the PTO on the OE buoy for testing at the Wave Energy Test Site (WETS) in Hawaii.
  • Run grid-connected, open-ocean tests for 6 months at WETS.
  • Validate reliability and commercial viability, with low operating expenditures, in the open ocean.
  • Develop an advanced oscillating water column (OWC) compatible air turbine that can be used as a building block in any OWC design.
  • Finalize system integration between HydroAir PTO and OE buoy.
  • Test and commission the PTO on OE buoy.
  • Perform open-sea testing at WETS for one year.

About the Water Power Technologies Office

The U.S. Department of Energy’s Water Power Technologies Office advances cutting-edge technology to modernize the U.S. hydropower fleet and drive U.S. leadership in wave and tidal energy, with the goal of delivering low-cost power and resiliency to America’s power grids.