In Conjunction with that, you also have to supply the ISEER Rating of your AC. And for just a provided electricity charge, it gets you the regular monthly electricity expense of functioning the air conditioner. Many thanks engineers for browsing This website! I am a BE-electronics and telecommunication engineer (1995). https://andresglpcn.corpfinwiki.com/9208659/5_simple_statements_about_ac_electricity_consumption_calculator_explained