Mr. Rappaport, now retired, had been involved in renewable energy for over forty years. In 1972, he invented the geothermal-solar hybrid system, for which he was awarded a basic patent in 1978. During the development of the geothermal-solar system, Mr. Rappaport engineered a biomass power project and developed the business plan as well. From this work the development of Biomass One, L.P. emerged and the construction of a 22 MW plant in Medford, Oregon, that has been in commercial operation for the past 30+ years. He served as a founder, general partner, & managing partner. He has been involved with community and non-profits as a volunteer over the years.