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LESSONS FROM AUSTRALIA REDUCING SOLAR PV COSTS THROUGH INSTALLATION LABOR EFFICIENCY
The report identifies that U.S. residential solar PV installation labor is significantly less efficient than in Australia and Germany, with U.S. installers averaging 9.4 labor hours per kW compared to 6.1 in Australia and 4.3 in Germany. It argues that the U.S. can reduce its installation time to approximately 7 labor hours per kW by adopting four key interventions: optimizing pre-installation, redesigning base installation (especially for clay tile roofs), using integrated racking, and reducing the number of system meters. The document attributes Australia's success to high market competition, a flat-rate payment structure for installers, and a regulatory environment that minimizes permitting and interconnection costs.
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Document type: Report