Electric Reliability

RP3 LogoHG&E understands that electricity is vital to the way we do business and live our lives.  HG&E is therefore proud to offer its customers highly reliable electric service, ensuring that power is available to you as often as possible.  As a mark of its dedication to its innovation and its commitment to exemplary service, HG&E is a recipient of the prestigious RP3 designation from the American Public Power Association, which is held by less than 2% of the country’s over 2,000 municipally owned utility companies.  Such status is awarded to municipal utility companies that provide customers with the highest degree of reliable and safe electric service. HG&E has also been awarded APPA’s Excellence in Reliability Award since its inception in 2015.

In order to ensure that electric service remains reliable, HG&E continuously monitors its reliability indices, which give HG&E a sense of its performance compared to other utilities and allow HG&E to identify and target potential problem areas on its system.  This procedure allows HG&E to plan reliability-related projects on its system.  

Some of the reliability indices commonly used to define the length and frequency of interruptions to customers, system availability, and the number of customers affected by outages in the utility industry are CAIDI, SAIDI, and SAIFI.  They are defined as follows:

Customer Average Interruption Duration Index (CAIDI) – represents the average time expected to take to restore service after a sustained interruption.

System Average Interruption Duration Index (SAIDI) – defines the average interruption duration per customer served.

System Average Interruption Frequency Index (SAIFI) – defines the average number of times that a customer’s service is interrupted during a given year.

The table below shows HG&E’s reliability statistics for years 2020, 2019, 2018 and 2017, as well as typical municipal and private utility reliability statistics.

Reliability Statistics

Reliability Statistic

HG&E 2020

HG&E 2019

HG&E 2018

HG&E 2017

Typical Utility in the Region*

CAIDI

99.224 minutes

38.97 minutes

77.99 minutes

93.47 minutes

146.95 minutes

SAIDI

144.808 minutes

50.86 minutes

47.82 minutes

53.77 minutes

143.34 minutes

SAIFI

1.61 outages

1.31 outages

0.61 outages

0.58 outages

0.82 outages

*American Public Power Association (APPA)

  • Engineering the Future

    In the summer of 2022, HG&E welcomed two new cadet engineers onto our team, Chris Perez and Kyle Lippman. Both graduates of Holyoke High School, they spent their summer arriving to work at 7 am and learning about the important work happening at HG&E and throughout their community. From the fishway to gas service, and the meter department to power supply, these recent high school graduates were exposed to a variety of HG&E career paths as they became oriented to their new roles.

  • Celebrate Public Power & Public Natural Gas Week

    Holyoke Gas and Electric (HG&E) is inviting the local community to celebrate Public Power & Public Natural Gas Week on October 5 from 4 – 6 PM at Veterans Park. This free event will feature a little something for the entire family!

  • Gas Heating System Check-Up

    Cold weather is just a few months away, plan ahead and get your natural gas fired heating system ready for falling temperatures. HG&E is offering a limited number of free winter checkups on a first come first serve basis. After the free appointments fill up, the normal service rates will be applied to the customer bill. Please book your winter checkup before September 16.

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Contact Info

99 Suffolk Street
Holyoke, MA 01040
Tel: (413) 536-9300
Fax: (413) 552-0392
Toll-free: (877) 742-5443
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