 BOISE, Idaho--BUSINESS WIRE--IDACORP, Inc. NYSE: IDA announced today that its Board of Directors approved a 5.6 increase in the regular quarterly cash dividend on IDACORPs common stock to 0.75 per share. At the new rate, the indicated dividend is 3.00 per share on an annual basis. IDACORPs Board of Directors has approved a dividend increase every year over the last decade, resulting in a cumulative average dividend growth rate of approximately 8.6, said Lisa Grow, IDACORP President 