A creation care small group at the Hyde Park Mennonite Fellowship, Boise, Idaho, sponsored a congregational action to reduce home electricity use. Families from the congregation shared their power bills from 2013 and 2014 with the goal of reducing total congregational usage by 10%. Results were collective and anonymous.
With extra help from those who went solar, Hyde Park Mennonite Fellowship reduced the amount of energy it attendees used at home by an average of 27% in 2014 compared to 2013. See their web page.