Encore Energy Systems, Inc., a diversified technology development and acquisition company, operates international aggregator of bio-diesel reactor technology, fuel distribution, production system, and fuel production facilities primarily in the United States. The company also owns a systems patent known as the Energy Miser System and focuses on providing heating and air conditioning powered by the thermal properties of managed water systems, which include gray-water, re-use water, and potable water systems. The company was formerly known as Energy Vision International, Inc. Encore Energy Systems, Inc. was founded in 1979 and is based in Reno, Nevada.