Solar Market and Cost Analysis

49 $7 $6 System Price ($/Wdc) 15 S $1 • Distributed System Pricing from Select States, H2 2022 (partial) In addition to price differences based on system size, there is variation between states and within individual markets. Dollar-per-watt prices generally decrease as system size increases. • For systems of less than 100 kW, price increases varied between H2 2021 and H2 2022 (partial): - 5%-8% in Arizona, 3%-9% in California, 3%-10% in Massachusetts, 8%-11% in New York Price changes in systems greater than 100 kW varied dramatically in some states during this period because of small system sizes. For example, the 500 kW-5 MW price in Arizona in H2 2022 (partial) is based on only three systems. Bars represent the median, with error bars representing 80th and 20th percentiles. $0 AZ CA MA NY AZ CA MA NY AZ CA MA NY AZ CA MA NY NY 2.5 kW-10 kW 10 kW-100 kW 100 kW-500 kW 500 kW-5 MW 5 MW+ 2022 MW reported YTD: Arizona (186), California (1,232), Massachusetts (108), New York (711) Note: System prices above $10/W and below $0.75/W were removed from the data set. Sources: Arizona Goes Solar (1/17/23); California Distributed Generation (11/30/22); Massachusetts Lists of Qualified Generation Units (1/11/23); Solar Electric Programs Reported by NYSERDA (1/19/23). NREL | 26

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