How Ice Could Impact Subsea Cables and the Great Lakes’ Offshore Wind Success

Ice hasn’t necessarily put a chill on the development of offshore wind in the Great Lakes of North America, but it does pose a significant challenge — both in the design of offshore wind turbines and the maintenance of subsea power transmission cables. Winter is a wildcard for the Great Lakes because the offshore wind… Read More

Saltwater-Freshwater

The Cable Challenges of Saltwater vs. Freshwater for Offshore Wind Projects

The corrosive effects of saltwater on subsea cables and accessories are well known. Freshwater doesn’t have quite the same impact, but it still raises a range of issues for offshore wind developers. The saltwater vs. freshwater comparisons are becoming more relevant as offshore windfarm projects along the Great Lakes of North America — the largest… Read More

Synthetic Cable Terminations

Why Synthetic Cable Terminations Are Unique

Synthetic cable is stronger than steel on a strength-to-weight basis, which makes it an attractive option in marine environments. The key challenge of synthetic cable is what you do about the attachment points, or terminations. Terminations can cut the tensile strength of synthetic cable by more than 50 percent, potentially defeating the purpose of going… Read More

Categories : Subsea Hardware
subsea cables

Subsea Cable Trade Group Widens Focus to All of Europe

A trade association representing the subsea cable industry in the United Kingdom widened its focus in March 2016 to cover all of Europe. The new European Subsea Cables Association (ESCA) takes the place of Subsea Cables UK. The trade group provides a forum for people who own, manage or service subsea telecommunication and power cables… Read More

wind farms

Offshore Wind Farms Still Learning How to Handle Cables

The offshore wind industry has fresh guidance on using reliable standards to determine the best depth for burying offshore wind farm cables. In February 2016, the Offshore Wind Accelerator based in the U.K. published advice to offshore wind farm operators to help them ensure they are burying their power cables at a safe depth. This… Read More

subsea cables

Subsea Equipment Failure is Bad News for Everyone

Whether they are lifting oil from deep below the seabed or experimenting with data centers on the ocean floor, anybody getting work done below sea level lives in perpetual fear of subsea equipment failures. This is especially true as oil-development machinery equipment installed decades ago reaches the end of its projected operating life. What do… Read More

subsea cable power

Transporting Energy Across the Ocean Will Require Proven Subsea Power Cable Hardware

The island nation of Iceland has more renewable energy than it needs. Great Britain wants to use more power from renewable sources. A 1,000-kilometer submarine power cable could conceivably help Iceland export its surplus renewable power and help Great Britain meet its renewables goals. All this is possible because of the advantages of high-voltage direct… Read More

Categories : Subsea Hardware
connecting the world

Subsea Cables are Connecting the World

Construction continues on the Asia-Africa-Europe One (AAE-1) subsea cable system, a collaborative project between 17 global service providers to create a 25,000km subsea cable system to connect Southeast Asia, Europe, the Middle East and Africa. At completion, the project will connect 18 countries including Hong Kong, Vietnam, Cambodia, Malaysia, Singapore, Thailand, India, Pakistan, Oman, UAE,… Read More

Categories : Subsea Hardware
Fixing damaged cables

How Robots are Fixing Damaged Subsea Cables

We have previously discussed the various ways subsea cables can be damaged underwater (Link: http://pmiind.com/damage-to-subsea-cables-a-huge-risk-to-offshore-wind-farms/), but how are these cables fixed? The answer lies on a ship like the Pierre de Fermat, a ship specially designed for undersea cable repairs.  Once the break location is identified, the ship launches a remotely operated vehicle (ROV) to retrieve… Read More

subsea cable insight

Subsea Cables Providing Insight to the Mysteries of the Ocean Floor

Below the surface of the earth’s crust, there is constant movement as tectonic plates slide past one another and bump into each other.  These plates have rough edges that sometimes get stuck.  When this happens, the rest of the plates keep moving, and when the edges finally unstick, it causes earthquakes. For centuries, scientists have… Read More

Categories : Siesmic, Subsea Hardware
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