The bright yellow buoys — each worth $1.3 million — are being commissioned by the Department of Energy's Pacific Northwest National Laboratory in Washington state's Sequim Bay. Starting in November, they will be deployed for up to a year at two offshore wind demonstration projects: one near Coos Bay, Oregon, and another near Virginia Beach, Virginia.
"We know offshore winds are powerful, but these buoys will allow us to better understand exactly how strong they really are at the heights of wind turbines," said PNNL atmospheric scientist Will Shaw. "Data provided by the buoys will give us a much clearer picture of how much power can be generated at specific sites along the American coastline — and enable us to generate that clean, renewable power sooner."
Offshore wind is a new frontier for U.S. renewable energy developers. There's tremendous power-producing potential, but limited information is available about ocean-based wind resources. DOE's Office of Energy Efficiency & Renewable Energy purchased the buoys to improve offshore turbine performance in the near term and reduce barriers to private investment in large-scale offshore wind energy development in the long term. The buoys were manufactured by AXYS Technologies, Inc., in Sidney, British Columbia.
A recent report estimated the U.S. could power nearly 17 million homes by generating more than 54 gigawatts of offshore wind energy, but more information is needed. Instruments have long been sent out to sea to measure winds on the ocean's surface, but the blade tips of offshore wind turbines can reach up to 600 feet above the surface, where winds can behave very differently....