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Electric & Gas Customer Choice Data

DOER tracks the number of electric and natural gas utility customers switching to competitive supply services. Now including Community Choice Electricity Aggregation data.

Table of Contents

Electric Customer Choice Data

DOER collects monthly data from the non-municipal electric companies that shows the movement of electric power customers in Massachusetts from utility electric supply to competitive supply. 

Starting in 2021, DOER is reporting the number of customers that are on competitive supply through a community choice electricity aggregation, also known as a municipal aggregation. In a municipal aggregation program, the city or town buys electricity from a competitive supplier on behalf of its residents and businesses. Customer participation in an aggregation is voluntary. This data is referred to here as Community Choice Electricity Aggregation (CCEA).  Currently, National Grid and Unitil are reporting the CCEA data.  Eversource is not currently reporting the breakout of CCEA from its competitive supply numbers.  DOER is working to get the Eversource data and will report it as soon as it is available.  

The graphic below highlights the current load for Electric Competitive Supply 

2020/21 Electric Customer Choice Data Graph

 

You can also download Excel spreadsheets of the data tables (by month), which include individual electric utility company data  (note: Municipal Electric companies do not have competitive supply options):

Notes and definitions:

All data were collected from investor-owned electric power companies, who reported data by their rate classes. Each company reported two data points each for both incumbent and competitive generation service: (1) the number of customers on the last day of the month, and (2) the kilowatt  hours (kWh) used during the entire month.

Data for residential, farm, and street-lights rate classes are shown as reported by the distribution companies. The remaining rate-class data were aggregated by DOER as follows: small commercial and industrial (C&I) includes rate classes with average monthly usage levels below or equal to 3,000 kWh/month; medium C&I includes rate classes with average monthly usage levels greater than 3,000 kWh/month but less than or equal to 120,000 kWh/month; large C&I includes rate classes with average monthly usage levels greater than 120,000 kWh/month. DOER chose this particular aggregation scheme to simplify the reported data. DOER does not endorse any particular conclusions or findings that may result from the data.

Further questions can be directed to DOER Energy Markets at doer.markets@mass.gov

Excel Spreadsheets

2021 Monthly Electric Customer Migration Data (Jan-May)

2020 Monthly Electric Customer Migration Data

2019 Monthly Electric Customer Migration Data 

2018 Monthly Electric Customer Migration Data 

2017 Monthly Electric Customer Migration Data 

2016 Monthly Electric Customer Migration Data

2015 Monthly Electric Customer Migration Data

2014 Monthly Electric Customer Migration Data 

Additional Resources

Natural Gas Customer Choice Data

As with electricity markets, natural gas markets are also open to competition.  DOER also tracks the total loads and the total number of customers switching to competitive suppliers from natural gas utility service. The graphic below highlights the current state of competitive load.  

Natural Gas Customer Choice Supply Load

The yearly data tables below show the switch of gas customers in Massachusetts from utility generation sources to competitive generation sources. You can also download Excel spreadsheets of the tables (by month and by year), which also include choice data broken down by local distribution company.

Notes and Definitions:

All data were collected from local distribution companies, who reported data by their respective rate classes. Each company reported two data elements each for both incumbent and competitive generation service: (1) the number of customers on the last day of the month, and (2) the energy in (therms/CCF) used during the entire month.

Data for residential include (heating and non –heating), farm, and street-lights rate classes are shown as reported by the distribution companies. The commercial and industrial (C&I) rate-class data were aggregated by DOER as follows: Low load factor (small, medium, and large); and high load factor ( small, medium, and large):

Load Factors and Data

Low Load Factor: Small low load factor includes rate classes with average monthly usage levels below or equal to   32,500 cubic feet; medium low load factor includes rate classes with average monthly usage levels greater than 32,501 cubic feet /month but less than or equal to 100,000 cubic feet/month; and large low load factor includes rate classes with average monthly usage levels equal to and greater than 100,001 cubic feet/month.  

High Load Factor:  Small high load factor includes rate classes with average monthly usage levels greater than 8,000 cubic feet/month but less than or equal to 45,000 cubic feet/month; medium high load factor includes rate classes with average monthly usage levels greater than 45,001 cubic feet /month but less than or equal to 180,000 cubic feet/month; and large high load factor includes rate classes with average monthly usage levels equal to and greater than 180,001 cubic feet/month.  

DOER chose this particular aggregation scheme to simplify the reported data. DOER does not endorse any particular conclusions or findings that may result from the data.

Excel Spreadsheets

2020 Natural Gas Customer Choice Data

2019 Natural Gas Customer Choice Data

2018 Natural Gas Customer Choice Data

2017 Natural Gas Customer Choice Data

2016 Natural Gas Customer Choice Data

2015 Natural Gas Customer Choice Data

 

Additional Resources

Contact

Phone

Main Phone 617-626-7300

Online

Energy Markets doer.markets@mass.gov

Address

MA. Dept. of Energy Resources
100 Cambridge St.
Suite 1020
Boston, MA 02114
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