Electricity generation in the United States hit a record high in the first half of the year, as power demand is growing with data center expansion. Electricity provided by utilities in the U.S. rose by 4% in January to June, to an all-time high of 2,188 terawatt hours (TWh) for the period, according to data from clean energy think tank Ember cited by Reuters columnist Gavin Maguire. Fossil fuels continued to supply more than half—or 54.8%—of all electricity. Clean sources held a record-high 45.2% share of electricity generation, up…