PORT-E redefines the concept of portable electricity. It harnesses and stores the heat generated while cooking at restaurants, cafeterias and household to power up the building at a later time of the day. Being rechargeable and reusable the PORT-E units can reduce the footprints of the GHG by avoiding the fossil fuel-based generation of electricity. Restaurants use several units of electricity per hour accounting to a significant share in the overall power generated by the burning of fossil fuels. Heat rechargeable PORT-E units absorb heat by placing them around the cooking vessels or even in the kitchen. These can then be fitted into the sockets, allowing the heat stored to be converted into the electricity. The primary buyers of the technology would be small to 7-star rated restaurants and cafeterias worldwide. Households and institutional cafeterias can purchase the miniature units of PORT-E.