OTT Making moments brighter Save your energy for what's most important to you. We'll help keep your family comfortable with smart energy options and rebates: Up to $50 for an air conditioner tuneup . Up to $650 toward a new air conditioner . Up to $3,200 on geothermal installation . $75 for a smart thermostat Learn more at alliantenergy.com/rebates Alliant Energy Powering Beyond