The software monitors fuel consumption, speed, departure status and loading data, and can transmit back to shore in real time for analysis. It will be installed on the ferries Stena Britannica and Stena Hollandica, and on the freight vessels Stena Transit and Stena Transporter.
Stena’s ESP has been running since 2005, with the first NAPA implementation taking place in 2007. The new vessels will bring the total number of ships with the software to 26.
Stena conducts eco-efficiency monitoring and analysis from the shore, and the company say the programme has resulted in verified fuel savings of $9 million.
“At NAPA we understand that ship operators are under increasing public, regulatory and financial pressure to control their fuel costs and boost environmental credentials,” said NAPA’s Johan Nyström, VP sales, EMEA & Americas.
“We also know that the first step to really effective fuel saving programmes is a clear baseline against which to measure any future savings achieved by efficiency initiatives.”
“Determining a testing process to verify results on a small scale before rolling the programme out has enabled Stena Line to invest only in proven solutions that work on its specific vessels and routes.”
Those routes include passenger ferries operating around Scandinavia, the United Kingdom and the Baltics, providing connections between 10 countries. Getting accurate data on fuel efficiency is key to reducing consumption, according to Lars-Erik Hellring, ESP project manager, Stena Line Scandinavia.
“Stena Line's Energy Saving Programme has enacted more than 200 energy reduction initiatives since 2005,” he said.
“As time goes on and we aim to extend existing gains even further, the initiatives designed to reduce fuel volume become increasingly challenging to measure accurately. Without clear and accurate evidence of success, which is what NAPA’s software delivers, it would be difficult to design an effective fuel consumption reduction programme, especially in an industry when savings as small at 0.5 per cent can mean a significant cost saving.”
“NAPA’s real time monitoring and reporting system enables crews onboard and shore-based personnel to work more closely together to achieve efficiency. Each team is equipped with tablets to allow officers to follow fuel consumption figures in real time, displaying the current fuel consumption per nautical mile – something really easy to understand and therefore easy to act upon.”