This system will be available for use by cargo vessels that aren’t yet equipped to connect to shore power by placing a bonnet over the vessel’s stack to capture and treat exhaust while the ship is at berth. CARB requires the exhaust treatment to be equivalent to electric power at berth.

“The bonnet will give some of our cargo carriers a great option in reducing their air quality impacts while they work to transition their vessels to being shore power compatible,” said Dan Malcolm, chairman of the port board.

The system is planned to be operational by Jan. 1, 2025.