Spending on energy efficiency programs funded by electric and gas utility customers will double by 2025 to about $9.5 billion, according to a report from the Lawrence Berkeley National Laboratory. The projected growth in spending is driven by policies in a number of states requiring that utilities obtain all cost-effective energy efficiency savings. Another driver is standards that require electric utilities to meet minimum energy savings goals each year. The full report, “The Future of Utility Customer-Funded Energy Efficiency Programs in the United States: Projected Spending and Savings to 2025,” is available here.