WEC Energy Group plans to invest $14 billion over the next four years in clean energy sources, new infrastructure and technology upgrades. That's from a recent report from the Milwaukee-based energy company, highlighting a transition to a largely carbon-free energy mix. The company has more than 2 million customers in the state. In 2016, the company announced a goal of reducing carbon emissions 40 percent from 2005 levels by 2030. And last year, that goal was expanded to 80 percent reduction by 2050. Between this year and 2023, the company says it will spend over $1 billion to increase the proportion of renewable energy sources in the company's generation mix. "We're confident in our ability to achieve our 80 percent reduction goal, but it will require significant effort, continued improvements in technology and reshaping our generation fleet," said Kevin Fletcher, president and CEO of WEC Energy Group. In 2018, the company generated 52 percent of its electricity from low- and no-carbon sources.