NREL is a national laboratory of the U. Department of Energy Office of Energy Efficiency & Renewable Energy Operated by the Alliance for Sustainable Energy, LLC This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www. Neither the United States Government, nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, make any warranty, express or implied, or assume any legal. . Each year, the U. solar photovoltaic (PV) systems to develop cost benchmarks. These benchmarks help measure progress toward goals for reducing solar electricity costs. . DOE's Energy Storage Grand Challenge supports detailed cost and performance analysis for a variety of energy storage technologies to accelerate their development and deployment The U. Source Control: Reduce Later Maintenance Risks Through Model Selection and Installation O&M costs are already established during the equipment selection and. . As solar-plus-storage systems become essential for industries and households alike, understanding cost drivers and smart management approaches will separate successful projects from underperformers.