CASE STUDY:TOTAL PLANT
MONITORING OPTIMIZESPAGBILAO’S O&M, SAVESOVER $3 MILLION USD.

O&M Optimization
Anomaly Detection Service
PROJECT OVERVIEW• Remote Monitoring Service as a
joint collaboration of Mitsubishi
Power and JERA
• Total plant monitoring for unit 1and 2 installed: 2017
PLANT DETAILS• Pagbilao Power Plant (total of 3units), 1,155 MW• Unit 1 and 2 are operated by
TeaM Energy Corporation, acompany jointly owned by JERAand Marubeni Corporation• Pagbilao, Quezon, Philippines• Mitsubishi Power coal-firedboilers and steam turbines

Extensive O&M Expertise as
World-Leading Power Producer

CHALLENGE
The Pagbilao Power Plant uses three coal-fired units to generate power for the Philippines’ growing economic anddevelopment needs. Units 1 and 2 were installed in 1996 and are owned and operated by TeaM Energy Corporation, apartnership between JERA and Marubeni Corporation, which sought to reduce unplanned downtime and maintenancecosts. Units 1 and 2 are critical resources, which cycle between 35 and 100 percent load daily, and are rarely offline.

JERA Data Analyzing Center

Pagbilao Control RoomMitsubishi Power Global Service Center

SOLUTIONRESULT

Mitsubishi Power and JERA jointly implemented
a comprehensive anomaly detection service
that monitors the entire plant, implementing
monitoring and diagnostics technology from the Mitsubishi
Power Global Service Center (GSC) in the Philippines andfrom JERA’s Data Analyzing Center (DAC) in Japan.

In the first three years, the anomaly detection service
identified 138 anomalies that needed remedial action:

The anomaly detection service identifies pattern changes
using approximately 1,500 sensors mounted on plant
equipment for each unit, including the boiler, steam
turbine and generator, and focuses on any anomalies thatmight result in a forced outage or load or performance
reduction, such as boiler tube leaks, vibration of rotating
equipment and gradual changes of process data.
Equipment and system experts evaluate the analyticalresults and create anomaly reports that build on
experience at other plants to identify the likely root
causes and provide a recommendation of further action
for the operators at Pagbilao.
This total plant anomaly detection service was alreadyproven by Mitsubishi Power and JERA at JERA’s
Hitachinaka Thermal Power Station in Japan prior
to the installation at Pagbilao Power Plant in 2017.

• 18 prevented unplanned outages or load reduction• 11 identified thermal performance deterioration• 109 identified other developing issues in very earlystages, so they could be addressed on a planned basis
at minimum cost
In the initial three-year period, the anomaly detection
service prevented up to 35 days of unplanned downtime,
which in the Philippines market can be valued at over
$3 million USD. It also identified thermal performancelosses that were increasing fuel costs by over $100,000
USD annually.

“Remote monitoring engineers from the Mitsubishi Power
GSC and JERA DAC are a vital extension to our teamat Pagbilao. We were already using our own data todetermine action at our plant, but the additional support
from Mitsubishi Power’s expert knowledge and JERA’sO&M experience is invaluable. We’re able to prevent
more unplanned outages, increase efficiency andreduce maintenance costs, which makes our plant more
profitable and extends the life of our investment.”— Operation Manager, TeaM Energy

Extensive Expertise in Plant Designand Construction
METP-11DS37E2-A