DNV GL: Offshore wind needs to talk about extreme weather and earthquakes

Energy advisory group DNV GL believes the wind energy industry needs to address potential issues caused by cyclones and earthquakes and plans to develop new guidance.

The certification body is calling on industry stakeholders to jointly develop recommended practice on wind turbine design methodologies for use in areas prone to cyclones and earthquakes. It has started a joint industry project (JIP) to develop guidelines that could alleviate the effects on wind turbine structures from them.

The Alleviating Cyclone and Earthquake Challenges for Windfarms (ACE) JIP aims to gather experience from across the industry to align wind turbine design methodologies for extreme weather conditions.

“Seismic and cyclone impacts on wind turbines is of critical importance in emerging offshore markets such as the Asia Pacific region, in countries like Taiwan, Japan, South Korea and parts of the US,” it said. “A joint industry approach for designing turbines for extreme environmental conditions is vital to ensuring the safety of the offshore structures.”

DNV GL said the lack of aligned guidance often leads to increased work for developers, turbine manufacturers, designers and certification bodies, causing delays and increasing the cost of projects.

The ACE JIP aims to bring more transparency to the market and reduce uncertainty in the design of offshore wind turbines. It believes that the recommended practice will increase the financial robustness of future windfarms developed for the emerging offshore markets.

DNV GL renewables certification executive vice president Kim Mørk said, “All industry stakeholders in emerging markets in the Asia Pacific region and the US will benefit from the ACE project.

“It will help to minimise cost, warranty and liability risks and optimise wind turbine design for seismic and typhoon conditions. As the focus area for this joint industry project was developed mutually with different wind industry stakeholders, the feedback during the initial phase has already emphasised the need for alignment in this area.”

Source: Owjonline