PG&E energy company testing unmanned aircraft for inspecting electric and gas infrastructure

SAN FRANCISCO, 19 May 2016. Officials at Pacific Gas and Electric Company (PG&E) in San Carlos, California, are 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 energy company testing unmanned aircraft for inspecting electric and gas infrastructure
PG&E energy company testing unmanned aircraft for inspecting electric and gas infrastructure

SAN FRANCISCO, 19 May 2016. Officials atPacific Gas and Electric Company (PG&E) in San Carlos, California, are 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 energy company testing unmanned aircraft for inspecting electric and gas infrastructurePG&E energy company testing unmanned aircraft for inspecting electric and gas infrastructurePG&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. The aircraft are small and controlled by human operators through remote commands. UAS are flown safely over PG&E’s electric and gas infrastructure and within the visual line of sight of operators.

PG&E 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. UAS 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,” explains Pat Hogan, senior vice president, Electric Transmission and Distribution, PG&E.

Pge Drones1

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 24 February 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,” says Jesus Soto, senior vice president, Gas Operations, PG&E.

Pge Drones2While 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.

Pacific Gas and Electric Company, a subsidiary of PG&E Corp. (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.


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