What does Fracsun do?

Fracsun develops patented ARES soiling monitoring stations that measure photovoltaic soiling loss in real-time using reference cell technology. The hardware integrates automated daily cleaning with cloud-based software to optimize solar asset performance and enable predictive maintenance.

Where is Fracsun located?

Fracsun is headquartered in San Luis Obispo, US.

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Fracsun

San Luis Obispo, CA, US

SolarPrivate

Founded 2026

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About

Founded in 2026, Fracsun is a private headquartered in San Luis Obispo, US specializing in Solar.

Fracsun specializes in on-site soiling loss measurement for solar photovoltaic systems. The company's flagship product, ARES (Automated Reference Soiling station), is a self-powered, wireless soiling monitoring device that measures instantaneous and daily soiling loss by comparing irradiance between two identical large-area reference cells—one cleaned daily and one left to soil naturally. The solution includes the Wash Extension accessory, which automatically rinses the clean reference cell with high-pressure spray daily. ARES provides irradiance data every 5 minutes via cellular modem to Fracsun's cloud portal, where customers can monitor soiling trends, project optimal wash dates, and optimize cleaning schedules to maximize solar plant performance and ROI. The company serves developers, EPC firms, asset owners, O&M providers, PPA providers, and project financiers across the solar value chain.

soiling monitoringphotovoltaicsolar O&Mperformance optimizationreference cell technologyIoTcloud monitoringpredictive maintenance

Headquarters

San Luis Obispo, US

Founded

2026

Company Type

Private