OPT’s newest addition to its utility-scale product line is the PB150 PowerBuoy®. The first utility-scale 150 kilowatt PowerBuoy, fabricated in Scotland, was deployed in 2011 off the Eastern coast of Scotland for ocean trials. A second PB150 PowerBuoy is being fabricated in Portland, Oregon, and is planned for deployment at Reedsport, Oregon. The deployment of the first utility-scale PB150 PowerBuoy in Scotland in the North Sea marked an important milestone in the Company’s commercial development.
The PB150 PowerBuoy offers many features for wave energy projects. It generates power with wave heights between 1 and 6 meters (3.3 to 19.6 feet). OPT’s mooring approach and PowerBuoy structure permit deployment of the PowerBuoy system across a wide combination of storm wave, tidal, and current conditions, making it suitable for a broad range of wave climates. The PB150 is typically configured in arrays of two to three rows, minimizing the footprint of the project.
The PB150 PowerBuoy offers a sustained maximum peak-rated output of 150 kilowatts. Typical capacity factors for the PB150 range between 30% to 45%, depending on location. The PowerBuoy provides grid-quality electricity and is independently certified to meet all required grid interconnection standards. The PowerBuoy has fiberoptic communications and Supervisory Control and Data Acquisition (SCADA) systems.
In January 2011 OPT achieved the world’s first Lloyd’s Register certification for the PB150 utility-scale wave power device. This provides independent, third-party assurance on the design of the PB150 PowerBuoy for its intended use, as analyzed against international standards, and its survivability in severe wave conditions.
OPT has also developed an Undersea Substation Pod (USP) for which a patent has been issued to OPT, which can aggregate the electrical output from up to ten PowerBuoys into a single transmission cable to shore. This approach minimizes costs of submarine transmission cable to the shore-based interconnection. The USP provides control and SCADA capability for all connected PowerBuoys.
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the PB 150 Data Sheet.
shown in feet