Tethys Stories feature information on news, events, research, and projects relevant to wind and marine renewable energy development activities across the globe. Stories are contributed from individuals working in the field, and provide insight into advancing the energy industry in an environmentally responsible manner. If you are interested in providing content to be featured as a Tethys Story, please email tethys@pnnl.gov.
The 11th European Wave and Tidal Energy Conference (EWTEC) was held in Nantes, France, September 6-11, 2015. As the premier academic conference in wave and tidal energy, EWTEC has primarily focused on technology engineering and modeling. Annex IV and Ocean Energy Systems (OES) partnered with the 11th EWTEC to expand upon the environmental focus of the conference, and increase participation by… Read More
Bat fatalities at wind energy facilities are a growing concern, particularly since bats have low reproductive rates and populations are slow to recover from long-term, large-scale impacts. Although bat carcasses have been reported underneath wind turbines since the early 1970’s, it was nearly 30 years before turbine-related bat fatalities received much attention. Over the past decade, our… Read More
The third annual Marine Energy Technology Symposium (METS) was held in Washington D.C., US April 27-29, 2015, in conjunction with the International Marine Renewable Energy Conference (IMREC) and the National Hydropower Association. IMREC and METS brought together scientific and engineering experts, technology developers, policy makers, and regulators from the US and beyond to focus on marine… Read More
The European Commission’s competitive Horizon 2020 programme has awarded €1.4 million to fund the Risk-based Consenting of Offshore Renewable Energy (RiCORE) project. Comprised of a team of experts from Ireland, Spain, Portugal, France and Scotland, the eighteen month project will examine ways to accelerate and streamline the environmental requirements associated with consents for offshore wind,… Read More
As interest has grown in developing a range of low carbon renewables, harnessing the vast energy from ocean waves has become desirable. Although few arrays of wave energy converters (WECs) have been deployed worldwide, planning for wave farms requires that we understand the maximum amount of energy that can be extracted from waves, while ensuring that environmental responsibilities are met.… Read More
Last May, a rural village in the Picos de Europa Mountains was inundated by offshore renewable energy knowledge. As part of the annual INORE Symposium, 60 to 70 early-stage researchers from around the globe and with a variety of backgrounds descended on La Vega, Spain, (regular population of about 160), to share their knowledge, learn from others, network, have fun, and leave inspired. These next… Read More
The beautifully scenic Cork Harbour in the south of Ireland has several geographical and historical claims to fame. It is the second largest natural harbour in the world, in the 1700s it was home to the largest butter market in the world and at the beginning of the twentieth century it was the last stopping point for the Titanic before its ill-fated trip across the Atlantic. For hundreds of… Read More
Plans to pin offshore wind turbines to the seafloor in the Atlantic Ocean have raised questions about potential risks to commercial shipping traffic, as vessels maneuver around the installations. To address this potential risk, Pacific Northwest National Laboratory (PNNL) scientists have developed an assessment of navigation safety risks, with support from the Bureau of Ocean Energy Management (… Read More
A recent article in Current Biology entitled Marine mammals trace anthropogenic structures at sea highlights how marine mammals may interact with offshore windfarms. As new larger scale installations become more common, research of this kind will support observations of in situ array-scale impacts of windfarms. A team of scientists, headed by Deborah Russell of the Sea Mammal Research… Read More
As wave and tidal devices are deployed in coastal waters and estuaries in countries around the world, there is intense interest in understanding how marine mammals, sea birds, fish, and sea turtles may interact with the machines underwater. Will animals be at risk from rotating tidal turbine blades? Will they be attracted to the foundations, anchors, and devices? Will they sense the mooring… Read More