Join the Hillary Rodham Clinton Children’s Library in Little Rock at 11:30 a.m. Wednesday to flip the switch to mark the installation of its 66-kilowatt solar array.

Refreshments will be served at the event.

The Central Arkansas Library System expects this project, which also includes updating and installing LED lighting, to result in more than $3.8 million in lifetime savings. That’s annual savings of $216,466.

So there’s ample reason to celebrate.