2014 PV Reliability, Operations & Maintenance Workshop: SunPower Oasis Robotic Panel Cleaning System, SunPower, Kyle Cobb

1. © 2014 SunPower Corporation
EPRI-Sandia PV Systems Symposium
SunPower Oasis Robotic Panel Cleaning System
Kyle Cobb, Product Manager

2. 2© 2014 SunPower Corporation
Panel Soiling Reduces Plant Performance By Up To 15%
Note: Panels on the left-hand side have not been cleaned, panels on right-hand side have been cleaned by SunPower Oasis robotic cleaning system.

3. 3© 2014 SunPower Corporation
Introducing: SunPower Oasis Robotic Panel Cleaning System

4. 4© 2014 SunPower Corporation
Robot Fleets Allow Swift Deployment to Combat Soiling
Full-sized truck equipped with
water tank and battery charging
stations to service robots
Four robots operate at any one
time; robots require minimal
maintenance between shifts
Two operators manage the robot
fleet and service robots with
batteries, water as needed
throughout site

5. 5© 2014 SunPower Corporation
Robotic Cleaning Means Higher Performance, Lower LCOE
1.2L / panel
~0.12L / panel
(at minimum)
WATER SAVINGS
of up to 90%
TRADITIONAL CLEANING*
SUNPOWER OASIS ROBOTIC CLEANING
21 seconds / panel
6 seconds / panel
CLEANING RATE
More than 3x faster
Exact cost
varies by site
SIGNIFICANT
COST SAVINGS
* Competitive information based on actual field operations and SunPower’s estimates.
Exact cost
varies by site

6. 6© 2014 SunPower Corporation
Robotic Cleaning Just Part of a Broader Automated and
Integrated O&M Solution
Predictive Modeling
Simulation modeling tools
help to optimize panel
cleaning schedule and
minimize the impact of
soiling on plant production
Real-time Monitoring
Remote performance
monitoring can
automatically trigger
O&M response
In-field response
Module cleaning is one
example of O&M activity
that can be automated;
still room for more
innovation
Oasis cleaning robots

7. © 2014 SunPower Corporation© 2014 SunPower Corporation. All Rights Reserved. SUNPOWER, the SUNPOWER logo and OASIS are trademarks or registered trademarks of
SunPower Corporation in the U.S. and other countries. All other trademarks are the property of their respective owners.