The ES2 Smart Controller Our state of the art energy management ES2 controller conserves energy and reduces domestic hot water, pool and spa heating and HVAC costs for hotels, motels, restaurants and multi-family dwellings. The ETE smart controller, through the M2M technology, can manage all of the hot water systems and heating and air conditioning at a site. The careful monitoring and control of these systems with ETE equipment provides excellent opportunities to save 10% to 40% in gas and electric consumption. The remotely-controlled smart controllers from ETE can set time-temperature schedules for each day of the week, yet can easily be changed to accommodate special occasions. Using wireless technology, the ETE smart controller uploads system data to our servers on the web. ETE notifies its customers of improper system conditions. The data we collect is easily downloaded from the web to generate reports, to optimize savings and to inform repair vendors.