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Quantify the site-specific impacts of soiling on prospective and current PV projects with NRG's Soiling Measurement Kit.


NRG’s Soiling Measurement Kit provides users with the information needed to quantify the site-specific impacts of soiling caused by snow, dust, and other particles on prospective and current PV projects. These data are used to improve pre-construction annual energy production (AEP) estimates as well as maintenance schedules (i.e., panel washing) and forecast models in the post-construction setting.

The Soiling Measurement Kit interfaces with the SymphoniePRO Data Logger. In order to accommodate the output signals, your data logger must be equipped with the PRO Signal Conditioning Module or four (4) P-SCM cards (P-SCM #9132).


• Determine site-specific soiling loss characteristics with this turnkey soiling measurement solution.

• Install easily as an accessory to NRG’s SRA System – complete with PV modules, pre-installed back-of-module temperature sensors, flexible mounting hardware, and integrated soiling interface module.

• Measure short circuit current and back-of-module temperature with user’s choice of statistical interval as well as optional 1 Hz sample data collection for flexible analysis options to meet data demands.