Using electrical power for ships at berth rather than diesel-burning engines, a practice called shore power or “cold ironing,” greatly reduces air pollution from ships. When ships use shore power, they tap landside electricity for their power needs at berth – lights, pumps, communications, refrigeration – instead of running diesel-fueled auxiliary on-board engines. Shore power cuts air pollution from ships at berth by 95 percent. Read the Shore Power fact sheet.
Shore Power Frequently Asked Questions can be found here.
The Port has completed more than $185 million worth of dockside power hookups and other infrastructure to facilitate shore power. On Jan. 1, 2014, California mandated that at least half of all container ships run on shore-side electricity at berth. Carriers are subject to an additional requirement: Each fleet must reduce its total emissions by 50 percent.
Higher compliance rates are being phased in over six years. The rule affects fleets calling at the ports of Long Beach, Los Angeles, San Diego, Oakland, San Francisco and Hueneme and applies to all operators.
For more information on the state mandate, visit the California Air Resources Board shore power page.