Waterless Automated Soiling Pattern Pod (WASPP)

Soiling losses of for a given PV array are determined by the most soiled cell / panel in a series string. The WASPP Lite is designed to easily mount to the ends of the PV arrays, where soiling is often the highest and in this way is representative of the soiling losses of the entire PV array.

Mounts to Standard PV Racks Including Single Axis Trackers

No Cabling or AC Power Connections Required

Completely Mobile and Installs in Minutes

Recommended to Install One PV PSS per Distinct Soiling Region within the PV System

Sub-panel Soiling Detection

The WASPP Lite  is designed to measure and model soiling losses at the panel-level while providing the accuracy and simplicity of short-circuit current measurements at the sub-panel level. 

Fully Autonomous, Low Maintenance, Hardware Solution for Maximum Accuracy, Reliability and Mobility

Self Cleaning Reference System

The WASPP Lite automated reference system ensures reliable and accurate measurements by keeping the reference cell clean and automatically wiping the reference cell before each soiling measurement:

Brush gently wipes reference cell clean between measurements

Sealed enclosure protects reference cell between measurements

Moisture sensor ensures reference cell stays dry

Motor control unit automates opening and closing of the reference cell cover

Autonomous Monitoring

Every WASPP includes all components required to monitor soiling losses and communicate these losses to the Enlighten Energy Soil Monitoring portal or a local DAS: