He was instrumental in developing the solar water heater that 95 percent of Israeli households have. In 1992 he was awarded an honorary degree from the Weizmann Institute of Science. These simple water heaters operated without pumps, whereby cold water was heated in the panel, which acted as a thermosiphon. This unit in turn became the standard for solar water heating worldwide, and helped popularize the commercialization of solar thermal technology in the United States in the 1970s, where Tabor lectured and acted as a consultant to solar start-up companies such as Northrup, Inc. which subsequently merged into ARCO Solar, which became BP Solar. Tabor experimented with various coatings to optimize the absorptivity of solar energy, with minimizing the re-radiation, or emissivity of the heat absorbed. This led to his development of a "black chrome" surface for the copper water-bearing plate.