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Transmission Distribution Metering & Mutual Assistance
Sunday, October 3, 2021 - Tuesday, October 5, 2021
Hyatt Regency Phoenix
122 N Second St Phoenix, AZ 85004 UNITED STATES
  • Online registration is now open.  Please click on the Register Now Button above.
  • We are excited to announce that registration is now open for the Fall 2021 Transmission, Distribution, Metering & Mutual Assistance Conference (TDM&MA).  This will be an in-person conference.  This conference will be held October 3-5, 2021, in Phoenix, AZ.  We have shortened the conference by half a day to be respectful of companies travel and budgetary constraints.

    As you know, TDM&MA is the premier industry event focusing on the transmission, distribution, metering and mutual assistance challenges facing electric companies nationwide. 

    As the only conference of its kind – developed exclusively by, and for, electric company experts – the sessions during the two-day event will address key engineering and operations issues important to transmission, distribution, metering and mutual assistance professionals. These sessions are designed to allow attendees opportunities to engage with speakers and subject matter experts.  In addition, you will be able to network with our exhibitors and sponsors in a one-on-one environment.

    These conferences always have been a great place to gather current and updated industry information.  Now that we are again engaging with in-person meetings, this is an opportunity for networking and forging new relationships, and will be a great venue to share ideas, concerns, and resources with industry leaders.  Attendees return to this highly rated event year after year because they value the opportunity to network, learn, and share with their peers. 

    Online registration will be available soon.

    We hope you can join us for the conference!!  Please contact me at with any questions you may have.

  • Coming Soon!!!
  • We are accepting requests for Sponsorship for the Conference.  Sponsorships available include the following: 

    • Welcome Reception    SOLD
    • Monday and Tuesday Breakfast   SOLD
    • Monday and Tuesday Lunch   SOLD
    • Monday, and Tuesday Morning Breaks   SOLD
    • Monday and Tuesday Afternoon Breaks  SOLD
    • Meeting APP   SOLD
    • WiFi Sponsorship   SOLD
    • Meeting Bags   SOLD
    • Room Key Cards   SOLD
    • Charging Stations   SOLD
    • Hand Sanitizer Sponsorship   SOLD
    • Monday Raffle Prizes  SOLD
    • Tuesday Raffle Prizes  SOLD
    • Water Bottles  SOLD
    • Ink Pens   SOLD
    • Mints   SOLD
    • Mini First-Aide Kits  SOLD
    • Conference Notebooks   SOLD
    • Registration Kiosks   SOLD
    • Lanyards   SOLD

  • We are accepting requests for exhibitors. 

    Each exhibit space holds a single 6’x30” draped table for your tabletop display.  You are responsible for your company signage as well as setup and breakdown.  One complimentary conference registration is included with each exhibit registration.  Additional attendees will be charged the applicable registration fee.  

    Space assignment is based on a first-come, first-serve basis.

    Exhibitor Schedule will be available soon.

  • All cancellations must be received in writing to Judy Mastin via email at  Cancellations cannot be accepted over the phone.  No-shows are responsible for the full conference registration fee. 

    If you cancel on or before September 10, 2021, a refund, minus a $150 processing fee will be made.  If you cancel on or after September 11, 2021, the registration fee is non-refundable. 

    All refunds will be processed after the conference.                                                        

    Substitutions are welcome at any time.  All substitutions must be received via email at

  • Hyatt Regency Phoenix
    122 North Second Street
    Phoenix, AZ  85004-2021

    Phone:  800-233-1234 

    Group Rate:  $229 /night plus tax

    ask for the EEI TDM&MA Fall 2021 Group Rate 

    Cut-off Date:   September 10, 2021 

    Online Room Reservations:

    Hotel Website:

  • Phoenix Sky Harbor International Airport
    3400 E  Harbor Blvd
    Phoenix, AZ 85034 

    Phone:  602-273-3300

    Airport Code:   PHX