Electricity rates for individuals and small businesses could rise sharply as Amazon, Google, Microsoft and other technology companies build data centers and expand into the energy business.A transmission line running near data centers in Ashburn, Va. As the electricity demands of the structures rapidly escalate, tech companies are becoming some of the most dominant players in energy.Credit...Nathan Howard for The New York TimesBig Tech’s A.I. Data Centers Are Driving Up Electricity Bills for Eve...