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OASIS means an Open Access Same-time Information System (OASIS). The purpose of the OASIS is to provide open access transmission customers and potential open access transmission customers, through an electronic medium, with relevant information regarding available transmission capacity, prices, and other matters to enable them to obtain open access non-discriminatory transmission service from transmitting utilities.

Transmission Services:

Bangor Hydro District Maine Public District
Transmission System Administrator
ISO-NE for BH District NMISA for MP District
Bangor Hydro District OATT Tariff Maine Public District OATT Tariff
Large Interconnection Queue
Small Interconnection Queue
Versant Power MPD Cluster Results 08 30 2021
NMISA NMMR8 Cluster Letter
Available Transfer Capacity
Versant Power_MPD_ATC.xlsx
Ferc Order 890Ferc Order 890
Compliance Filing Compliance Filing
Creditworthiness Contact Transmission Planning
Wheeling Off the Versant Power Electric System Wheeling off and Wholesale Load on the Versant Power System
Wholesale Load on the Versant Power Electric System Retail Load on the Versant Power System
Retail Load on the Versant Power Electric System Retail Customer Transmission Prices
Retail Customer Transmission Prices Real Power Loss Calculation PUBLIC 2021-2022
Transmission Line Segment Ratings Real Power Loss Calculations PUBLIC 2020-2021
Transmission Impedances and Short Circuit Capabilities Annual Update Information Filing – 2021
Annual Update Information Filing – 2022 Revised Annual Update Information Filing – 2020
Transmission Disruptions
Disruption - 05-17-2019
Disruption -  05-27-2020
Transmission Planning
Rebuilds and Re-Ratings, Enhancements and Expansions
Versant Power 2021 Chapter 330 filing
Emera Maine 2020 Chapter 330 filing
Emera Maine 2019 Chapter 330 filing
Emera Maine 2018 Chapter 330 filing
Emera Maine 2017 Chapter 330 filing
Final Transmission Reliability Plan
Planning Study Work
BHD Local System Plan MPD Local System Plan

Please Identify Your Service Area

Click on your district on the map, or select a zip code or town from the lists.

Select Your District on the Map Below

Maine Public Service District Bangor Hydro District


Emera Maine provides electric delivery service to two areas – the Bangor Hydro District and the Maine Public District.

  • The Bangor Hydro District includes Hancock, Piscataquis and Washington Counties and most of Penobscot County.
  • The Maine Public District serves Aroostook County and a small piece of Penobscot County.

Because some information varies by District, please identify your District on the map above, or enter your town or zipcode. If you need information on both Districts,  switch back and forth at any time by selecting the district selector button.

If the browser you are using has cookies enabled, you will only have to make this selection once.( If your browser has cookies disabled your selection will be remembered until you close the browser, but not when you return to the site.)