Creating future-proof bulkers and tankers
“Looking at the available technologies to future-proof a vessel, there’s no reason that bulkers and tankers should be obsolete after 15 to 20 years,” says Kevin Humphreys, General Manager, Merchant and Gas Carrier Segment at Wärtsilä.
“Slow steaming is here to stay, so for new-build vessels you can optimise propulsion machinery according to actual ship speeds. Being able to do this is important because today’s standard optimisation point is set at high ship speeds, which are almost never used. By optimising propulsion machinery for slow steaming, up to 5% fuel savings can be achieved. In addition, installing a hybrid machinery arrangement can deliver considerable fuel savings as shaft generators are the most effective way of producing electricity onboard, and can lead to a further 5% cut in fuel consumption.”
Reducing emissions and costs through fuel flexibility
“Fuel flexibility is another key to a future-proof vessel,” says Humphreys.
“With LNG, you can ensure compliance and reduce costs – there are plenty of good studies showing the savings you can achieve by using LNG from the beginning of a vessel’s life or retrofitting it down the line,” he explains. Based on Wärtsilä’s experience with LNG carriers, a dual-fuel approach can cut GHG emissions by between 13 and 30%, making this a compelling option for bulkers and tankers. In addition to a fuel-flexible approach, scrubbers can also be installed to reduce emissions.
Making digital technology pay off
Digitalisation in the marine industry can help ensure compliance and minimise OPEX – as well as provide all-important transparency. “This is an inefficient sector and tankers and bulkers just don’t have the data they need to make the decisions that will make them more efficient,” explains Humphreys. Wärtsilä’s cloud-based Fleet Operations Solutions (FOS) changes this. FOS offers holistic tools that give personnel a fully transparent navigational infrastructure and intelligent automation; the result is improved efficiency, safety, equipment maintenance and operational processes. “Being able to see operations in real time means our customers can improve energy management, fleet management and profitability with a life-cycle approach to their vessels. They can also demonstrate compliance with regulations,” points out Humphreys.
Taking advantage of machine learning can also help. Wärtsilä Expert Insight uses artificial intelligence (AI) and advanced diagnostics to monitor equipment and systems in real time. When anomalous behaviour is detected, specialists at Wärtsilä Expertise Centres are notified immediately and can support customers proactively with an appropriate solution.
It’s all about residual value
Residual value for bulkers and tankers is based on factors such as day rates, when and where a vessel was built, and its fuel consumption. Wärtsilä solutions that increase transparency into operations mean a more favourable valuation when it comes time to sell. “The information we provide minimises risk,” explains Humphreys. “Customers get an unprecedented level of insight into the actual performance of a vessel as opposed to a valuation based on published consumption curves, which can significantly improve residual value.”
In order to gain these benefits, owners need to think carefully about the needs of their vessel and fleet, choosing the technology that best fits their needs and situation. “Owners should talk to an expert before they go to the shipyard. It’s vital to run the numbers and make sure you’re not leaving any value on the table for a new build or retrofit. It’s also good to keep in mind that you’ll be dealing with a shipyard only for the length of the new-build project, but you’ll be dealing with OEMs for many more years after that – so it’s a good idea to start building that relationship from day one.”