The International Energy Agency has released its latest report on “digitalizing” the world’s key industries, with a focus on the electricity sector. The report includes some long-range projections for how much the world will need to invest in “smart” demand response, renewable energy integration and electric vehicle charging over the next two decades or so -- and how many hundreds of billions of dollars that could save us. Monday’s report, titled Digitalization & Energy, represents ongoing work from the IEA on how digital technologies like networked devices, cloud computing and data analytics are transforming energy-intensive sectors including industry, buildings and transportation.