Major customers - HECO (Hawaiian Electric Company and Subsidiaries)

12 Months Ended

Dec. 31, 2011

Hawaiian Electric Company and Subsidiaries

Major customers

9.  Major customers

HECO and its subsidiaries received approximately 11% ($316 million), 10% ($242 million) and 10% ($199 million) of their operating revenues from the sale of electricity to various federal government agencies in 2011, 2010 and 2009, respectively.