Tabor and French immigrant Lucien Bronicki developed a small solar power unit, an Organic Rankine cycle turbine, for developing countries with problematic power grids. It was designed to neutralize the maintenance issues of reciprocating engines so it had only one moving part, the rotor. A 3 kWe prototype was exhibited at the 1961 United Nations Conference on New Sources of Energy in Rome, but it failed to find commercial success.