Urbandale saves $22,500 through solar panels

Zoom out: More cities around the metro are improving their carbon-free efforts. Des Moines started operating a $2 million solar field last year at Southeast 15th and Harriet streets.

• The field provides energy for the city's animal control and greenhouse buildings.

What's next: Urbandale is considering building a new $50 million police headquarters at the southwest corner of Douglas Avenue and 100th Street.

• Depending on overall costs, solar panels could also be part of the building, says Urbandale spokesperson Derek Zarn.

The big picture: Urbandale residents who are interested in installing their own solar panels can apply for financial assistance.