Energy use of integral refrigerated containers in maritime transportation

Energy use was assessed for New Zealand’s international maritime transport of refrigerated goods. Cargo‐based analysis was used to obtain energy use and GHG emissions. 2.7kW/TEU mean energy consumption rate was assumed, but data indicated potential variations of around ±60%. Refrigeration accounts for approximately 19% of a refrigerated container’s energy use on a journey. Approximately 280GWh of electricity is used (190kt of CO2) for refrigeration of NZ’s 2007 imports and exports.