In order to serve you in the best way possible, Sioux Valley Energy needs your most up to date contact information. Occasionally we have to alert you of a planned electric outage, but if we do not have the correct phone number(s) and/or email address, we are unable to do that. You can call us at (877) 511-8062 or email us at sve@siouxvalleyenergy.com to update your contact information. You can also update your contact information through SmartHub.