18% fuel savings for GNV with chiller optimisation project

18% fuel savings for GNV with chiller optimisation project
Image courtesy of GNV

Italian shipping company Grandi Navi Veloci (GNV) and ABB have completed a retrofit of a technology that optimises the performance of chillers used for heating ventilation and air-conditioning (HVAC) systems on-board ferries. The retrofit has achieved energy savings of over 18 per cent.

Based on a target set for chiller optimisation to save 10 per cent of the energy used by chillers, pilot results cut consumption of power on board the ferry La Suprema by 18 per cent. The results suggest that the owner will save 70 MWh of power every month, adding up to annual savings of up to 77,000 EUR.

Actual energy consumption was depicted in real-time via an online dashboard. The results from the optimisation solution consistently showed direct energy savings.

The technology uses active monitoring on-board and data processing ashore through a remote connection and only requires a local on-board controller to interface with the chiller control. Based on algorithms generated from real-time data, such as weather forecasts, active learning and 250 HVAC system variables, chiller energy use can be cut significantly without compromising on cooling capacity or indoor climate. All data analysis and energy saving calculations have been verified by an independent analyst Into Trend.

Antonio Campagnuolo, GNV marine operations director, commented: “GNV is committed to investing in modern and advanced solutions to renew on-board systems and to improve the energy performance and consumption of our fleet. Working together with ABB helps to achieve our goal of providing an efficient and safe transport service through important investments in energy-saving solutions of our fleet”.

“This is a prime example of the efficiencies that are possible for ships today when owners commit to ABB solutions for digitalisation, connectivity and Smart Sensor technology,” added Daniele Patuelli, vice president, ABB Marine & Ports Italy. “Our strategy envisages an electric, digital and connected future for shipping, and energy-saving solutions that help owners achieve sustainability benefits are a major milestone for this vision for the maritime industry.