PG&E Testing Safety Drones to Inspect Electric and Gas Infrastructure
Pacific Gas and Electric Company (PG&E) is testing unmanned aircraft systems (UAS), commonly referred to as drones, to
enhance the safety and reliability of its electric and gas service. The Federal Aviation Administration (FAA) has authorized
PG&E to use drones to assist with inspections of electric and gas infrastructure.
PG&E is conducting two separate testing programs to explore the feasibility of using safety drones to monitor electric
infrastructure in hard-to-reach areas and to detect methane leaks across its 70,000-square-mile service area. These aircraft are
small and controlled by human operators through remote commands. Drones are flown safely over PG&E’s electric and gas
infrastructure and always within the visual line of sight of operators.
Test Flight Yields Early Safety Benefits
PG&E recently conducted its first drone test flight at the Balch Powerhouse, a hydroelectric facility located in the high
Sierra Mountains outside Fresno. Currently, assessments of facilities like the Balch Powerhouse require employees to use
fall-restraint equipment due to the height and the steep angle of the terrain as they visually inspect equipment. This is a
hazardous task that requires significant investment in training and protective equipment to perform safely. Drones are able to
accomplish such inspections easily and without safety risk to employees.
“These tests are helping PG&E demonstrate that drones can easily fly over remote or hard-to-reach terrain that is often
inaccessible on foot, and send back imagery showing the condition of electric lines and equipment. We see significant possibilities
not just for employee and public safety, but for increasing reliability of our service and response time to outages. We will
continue to explore the benefits of adding safety drones to our set of tools for inspecting utility infrastructure,” said Pat
Hogan, senior vice president, Electric Transmission and Distribution, PG&E.
Ongoing Partnership with NASA
PG&E is also working with NASA’s Jet Propulsion Laboratory (JPL), the University of California, Merced’s Mechatronics
Embedded Systems and Automation Lab (MESA Lab), and Pipeline Research Council International to conduct testing of NASA’s Open Path
Laser Spectrometer sensor on a drone. The miniature methane sensor developed by JPL is similar to the technology developed to find
life on Mars and is 1,000 times more sensitive than most commercially available technology. The first flight was performed at UC
Merced on February 24, 2016; the next series of tests will take place in June.
“The strategic investments we’re making in new technologies and innovative tools such as drones are part of our ongoing efforts
to enhance safety and reliability of our utility infrastructure. The ability to deploy an aerial methane detection tool over long
distances and in remote areas could signal a major turning point in future gas leak detection capabilities for PG&E, and the
larger utility industry as a whole,” said Jesus Soto, senior vice president, Gas Operations, PG&E.
Future Benefits for Customers
While PG&E’s safety drone program is still undergoing testing, the utility is encouraged by its potential benefits. Drones
can supplement PG&E’s current abilities to access and monitor remote infrastructure, and can be equipped with a wide variety of
sensors to detect leaks and structural issues.
In the future, PG&E also envisions drones playing a key role in storm and disaster response. Obstacles such as downed trees
or icy roads make it difficult for crews to assess damage, which in turn hinders response and restoration time. Using drones to
capture high-resolution imagery in real time will help speed up damage assessments and the deployment of the right resources to
restore power.
About PG&E
Pacific Gas and Electric Company, a subsidiary of PG&E Corporation (NYSE:PCG), is one of the largest combined natural gas and electric utilities in the United
States. Based in San Francisco, with more than 20,000 employees, the company delivers some of the nation’s cleanest energy to
nearly 16 million people in Northern and Central California. For more information, visit www.pge.com/ and www.pge.com/en/about/newsroom/index.page.
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Pacific Gas and Electric Company
Melissa Subbotin, 415-973-5930
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