Home Energy Audit: PG&E http://www.pge.com/energysurvey/ SMUD http://smud.apogee.net/homesuite/calcs/rescalc/default_supp.aspx Roseville Electric http://www.myenergytips.com/CalcHomeEnergy.aspx?accountID=618 Other http://hes.lbl.gov/consumer/ Other Tools http://www.energyguide.com/ http://smud.apogee.net/homesuite/library/