These benchmarks help measure progress toward goals for reducing solar electricity costs and guide SETO research and development programs. Read more to find out how these cost benchmarks are modeled and download the data and cost modeling program below.
Feldman, David, Vignesh Ramasamy, Ran Fu, Ashwin Ramdas, Jal Desai, and Robert Margolis. 2021. U.S. Solar Photovoltaic System Cost Benchmark: Q1 2020. Golden, CO: National Renewable Energy Laboratory. NREL/TP-6A20-77324.
Ramasamy, Vignesh, Jarett Zuboy, Michael Woodhouse, Eric O'Shaughnessy, David Feldman, Jal Desai, Andy Walker, Robert Margolis, and Paul Basore. 2023. U.S. Solar Photovoltaic System and Energy Storage Cost Benchmarks, With Minimum Sustainable Price Analysis: Q1 2023. Golden, CO: National Renewable Energy Laboratory.
This translates to a range of $2.06– $12.37/kW/year, and a benchmark value of $3.44/kW/yr. for a 200-kW commercial rooftop system and $1.17–$7.02/kW/year, and a benchmark value of $1.95/kW/yr. for a 100 MW utility-scale single-axis tracking system.
Although corrosion-related studies have emerged across various battery chemistries, they have largely remained fragmented without a cohesive, in-depth understanding.
Consequently, the corrosive degradation of dead metal, regardless of whether the battery is in operation or at rest, persists in undermining the performance through the accumulation of corrosion-derived byproducts and electrolyte depletion.
The crystallographic dependence of corrosion resistance was clearly demonstrated in AZIB systems, 34,35 where the corrosion stability of hexagonal close-packed (hcp) Zn (002) facets is markedly enhanced compared with that of other crystallographic orientations.
Building upon this expanded discussion, we integrate insights from existing corrosion suppression strategies and propose a spectrum of promising design principles—spanning metal electrode fabrication, surface modification, and electrolyte engineering—with the aim of fostering further developments in this important area.
They are priced according to five different power ratings to provide a relevant system comparison and a more precise estimate. The power rating of an energy storage system impacts system pricing, where larger systems are typically lower in cost (on a $/kWh basis) than smaller ones due to volume purchasing, etc.
Battery Energy Storage Systems (BESS) are becoming essential in the shift towards renewable energy, providing solutions for grid stability, energy management, and power quality. However, understanding the costs associated with BESS is critical for anyone considering this technology, whether for a home, business, or utility scale.
This increase underscores the persistent challenges in the market and the importance of cost analysis for energy storage in the renewable resource transition, as it aids in incorporating renewable sources into the network, thus bolstering decarbonization initiatives.
The survey methodology breaks down the cost of an energy storage system into the following categories: storage module, balance of system, power conversion system, energy management system, and the engineering, procurement, and construction costs.
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