Alliant Energy is reporting a big jump in the use of renewable energy

The Iowa Utilities Board has verified that more than 26.5 percent of the electricity Alliant Energy's Iowa customers used in 2019 was generated by renewable resources.  That's more than double 2018's rate of 9.9 percent.

Said Alliant Energy Iowa president Terry Kouba, "With more than double-digit growth in renewable generation, this achievement shows we are moving in the right direction. Our Clean Energy Blueprint will only accelerate our use of renewables, which benefits the environment and our customers."

The company says it is investing in energy storage systems, such as the new unit just constructed in Decorah.  When used with solar generation, battery storage allows power  generated when the sun is the most powerful to be released later.