Hawaiian Electric Industries, Inc. (HE) reported $20.4 million, or $0.22 per diluted share ($0.23 basic), consolidated net income in the 1st quarter of 2009, compared to $34 million, or $0.41 per share (basic and diluted) in the year-ago quarter. Similarly, consolidated revenue of $543.8 million in the reported 1st quarter of 2009 was lower compared with revenue of $729.6 million in the 1st quarter of 2008.Electric utility net income for the 1st quarter of 2009 was $14.1 million compared with $24.6 million in 2008. Lower net income was primarily due to lower electric sales and higher operations and maintenance expenses. Kilowatt-hour sales were down 7.4% in the reported compared with the year-ago quarter, impacting utility net income by an estimated $9 million. Sales were down mainly due to cooler, less humid weather and one less day of sales due to the leap year day in 2008....