On Site Energy® – Provider of Industrial & Event Generator Rentals, Air Conditioners, Chillers, Heaters & more On Site Energy® is the Northeast’s leader in the rental of power and temperature control equipment. We are the best established, most comprehensive portable energy solution Company in the Northeast. We help customers in many different industries to improve and safeguard their operations by solving problems, by being reliable, and thereby reducing risk. On Site Energy® provides 24/7/365 availability and service support with 30 employees operating from three branches and manufacturing facilities in Austin, Indiana. Indiana is the home of On Site's manufacturing facility, where we offer electric heaters and air handlers to contractors, major account end users, and government agencies for rent and for sale. On Site Energy® is a total, solution driven, regionally networked infrastructure of rental power, cooling, and heating equipment and experts that help customers in all industrial, commercial and event related sectors meet their goals and reduce their exposure. On Site Energy® products and services keep our customers businesses on track.