Located in the Hersek region of Yalova, surrounded by orchards and various species of trees, flowers, and birds, Turkey’s Cemre Shipyard has embraced an environmentalist philosophy
This same environmental passion is reflected in Cemre Shipyard’s clean energy-based designs, covering LNG, battery and hybrid-powered vessels, and R&D underway on alternative fuels such as methanol, ammonia and hydrogen. Among its recent pioneering green ship projects are the first hybrid-battery, DP2 SOV Wind of Change, the world’s first battery and LNG-fuelled purse seiner/trawler Libas and the SWATH SOV Groene Wind – considered a game-changing, energy-saving solution. Moreover, Cemre is ready to build more green-powered offshore, passenger, fishing and aquacultural vessels.
Some of the biggest service operation vessels in the windfarm market, Wind of Change and Wind of Hope are each equipped with one heave compensated gangway system to provide continuous access to wind turbines for technicians and a 3D crane for cargo/material handling. Developed by Ulstein and TTS, this crane is the first Colibri 3D-compensated crane deployed in the market. Another unique feature is Wind of Change’s diesel-electric hybrid configuration using medium, variable-speed gensets with a DC-based electrical system.
Wind of Change’s next generation diesel-electric system increases the vessel’s safety, reduces operational costs, improves the environmental footprint and yields better lifecycle economics.
Working with well-known designers around the world, Cemre Shipyard has delivered more than 35 offshore hull projects since 2006. Among these are its first turnkey offshore seismic support vessels, Ocean Mermaid and Ocean Fortune, built for Vestland Offshore in 2015.
Cemre’s first offshore wind vessels – Esvagt Mercator and Esvagt Innovator – were built for Esvagt. “These vessels were designed by Havyard Ship Design with different classification societies,” said Cemre Shipyard business development manager Burak Mursaloglu. “We had different challenges and different solutions for each vessel. We worked with Salt Ship Design for our beautiful Wind of Change and its sister Wind of Hope, owned by Louis Dreyfus Armateurs (LDA). Our pioneering SWATH SOV Groene Wind, designed by Vuyk Engineering Rotterdam for Deme Group, will be delivered in 2021.
“Our vessels are being operated by market-leading companies such as Esvagt, MHI Vestas, Ørsted, Siemens, Havila, Vestland, and LDA.”
Complex, pioneering projects
“Cemre Shipyard continues to participate in complex, highly technical designs for many pioneering offshore companies, and, our successful deliveries and engineering solutions combined with competitive pricing make us one of the preferred shipbuilders in the SOV market,” said Mr Mursaloglu.
Mr Mursaloglu said the goal for all of Cemre’s projects is to provide high-quality construction at a reasonable price, while creating eco-friendly vessels. “We are achieving this by configuring waste energy recovery systems through the vessel and reducing energy consumption with alternative system developments including not only major consumers but also minor system components.”
Cemre Shipyard employs more than 150 dynamic, well-educated, highly qualified engineers. “Combining our engineering skills with the ability to collaborate with our clients has been critical to our success,” Mr Mursaloglu pointed out.
Cemre Shipyard has always placed special emphasis on hiring young and dynamic engineers, not only sharing with them the shipyard’s previous know-how, but also providing them with an environment to think freely. As a result, said Mr Mursaloglu, “many creative ideas are born.”
He added “We like to be a part of the R&D steps of the project with the designer and shipowner. Thus, we can offer our design and engineering solutions to have a vessel with optimum features before the building starts. Together with various suppliers, we’ve developed different system solutions and applied them to many of our projects.”
Safety and comfort
When it comes to offshore windfarm maintenance, safety is critical in vessel design. This means installing motion-compensated gangways and advanced DP system solutions in SOVs. “Having heave-compensation technology is one of our preferences for cargo handling systems; this technology makes crew transfer possible and safe by cranes,” said Mr Mursaloglu.
When designing and constructing SOVs, onboard comfort is a priority. This means employing low vibration and silent technology like diesel-electric and hybrid propulsion and as much electric-driven equipment as possible on board. Cemre has delivered vessels with the Comfort notation.
Cemre Shipyard specialises in marine accommodation solutions. These are managed separately during the project by its inhouse experts, Cemre Interior Department. “We are delivering vessels with high-quality accommodation areas – in some cases to superyacht standards,” said Mr Mursaloglu. “We delivered vessels with a cinema, gymnasium, sauna, solarium, gaming rooms, lounges, libraries, meeting rooms, offices, and cabins with special designs.”
Battery and environmental solutions
Since delivering car passenger ferry Victoria of Wight, Cemre has installed over 5,200 kWh of battery packs. This significant experience with green power solutions has allowed the shipyard to develop collaborative relationships with designers and electric system suppliers – a key benefit for clients.
Mr Mursaloglu emphasised that Cemre Shipyard defines “every vessel we build as a masterpiece. It is not only because of good quality, but also the special features of each project. We can gladly say that Cemre is building ’The Firsts’ for the offshore wind industry.” He pointed to Wind of Change as the first hybrid-battery DC network DP2 SOV. “Wind of Change and Wind of Hope reinforced our experience on offshore equipment, such as helidecks, offshore gangways, and 3D cranes," he said. We brought variable speed MAN gen-sets and ABB DC Grid solution together in these vessels. The ABB DC System controls the generators to achieve speed setpoints based on the most-efficient fuel consumption according to the consumption.”
In 2021, Cemre Shipyard will deliver Groene Wind for Deme Group. Groene Wind will be the first DP2, twin-hulled SOV in the world, and the first to serve three different windfarm sites. The SWATH design ensures low wave impact on movements when approaching wind turbines. Groene Wind will enable safe crew transfers in significant wave heights. Its DP2 technology means the vessel can hold its position in rough seas but at the same time operate with lower fuel consumption. An impressive fuel consumption reduction of up to 50% can be achieved, further reducing the cost of windfarm maintenance. “Building a small waterplane area twin hull (SWATH) form is already a challenge, yet we completed the construction successfully. Also, this form brings severe weight constraints, thus, we used lightweight solutions as much as possible,” he said.