美国可再生能源实验室(NREL)发现，2017年美国公用事业级太阳能发电成本比去年同期下降了30%，固定倾斜系统平均价格达到每瓦1.03美元，带跟踪系统平均价格为1.11美元， 使其平准化电力成本(LCOE)可与联合循环燃气发电相竞争。
据NREL的估算，这意味着排除美国联邦投资税收抵免(ITC)的影响之后，固定倾斜系统的LCOE为$50-66/MWh，带跟踪系统的为$44-$61/MWh。
这些价格显示，公用事业级太阳能已经达到了美国能源部(DOE)Sunshot倡议行动所设立的2020目标，也使DOE的能源效率和可再生能源部办公室(EERE)将关注重点从降低成本转向了高水平可再生能源的整合。
由于成本降低的大部分因素是组件价格的崩溃， 因而其他细分市场的价格并未快速下降。NREL发现C＆I系统同比了下降15%，平均$1.85/W，但住宅系统的价格仅下跌了6%，为$2.80/W。这意味着C&I系统的LCOE为$92-120/ MWh，住宅系统为$129-167/MWh，仍低于SunShot的目标。但如将ITC的影响计算在内，则住宅系统成本大幅下降至$100/MWh以下。
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