Service Rates
Review our rate descriptions and pricing schedules for residential customers. For information on our other rates or detailed information, please view our filed tariff provisions.
Discount Rate Application
Gas Service Rates
This is our standard rate for residential customers who do not have gas space heating equipment.
Delivery Service Rates (R-1)
(For definitions of these charges, please view the Glossary of terms on your bill. For a complete list of the components of these charges and their values please see the “Current and Historical Delivery Service Rates” section below.)
| Service | Rate |
|---|---|
| Customer Charge | $10.00/30 days |
| Gas Delivery Charge* | $1.5016/Therm |
| Distribution Adjustment—Legacy Boston Territory** | $0.6680/Therm |
| Distribution Adjustment—Legacy Colonial Territory** | $0.5714/Therm |
* Also known as the Distribution Charge. Includes the Revenue Decoupling Adjustment Factor (RDAF).
** Also known as the Local Distribution Adjustment Factor (LDAF). The LDAF differs for customers served in National Grid’s legacy Boston Gas service territory and the legacy Colonial Gas service territory.
Rates for Supplier Services (R-1)
View our Supply Costs area for details on our Default Service pricing.
If you are a residential customer and you meet the requirements listed below then you may be eligible for a discount on your monthly gas bill. This will save you money and will not affect the service you currently receive. Eligible customers will receive a 25% discount reflected on their bill. To apply, please complete this Discount Rate Application form.
Eligibility Criteria (R-2)
- You do not have gas space heating equipment
- Your National Grid utility account is in your name
- And either:
- You are eligible for the low-income home energy assistance program (LIHEAP), or its successor program, for which eligibility does not exceed 200% of the federal poverty level based on a household’s gross income. (In a program year in which maximum eligibility for LIHEAP exceeds 200% of the federal poverty level, a household that is income eligible under LIHEAP shall be eligible for the low-income electric discount.)
- Or you are currently receiving benefits under one of the following means-tested programs: EAEDC, Food Stamps, WIC, Head Start, Mass Health, National School Lunch Program, Public Housing, School Breakfast Program, Supplemental Security Program, TAFDC, Veterans Programs - 115 benefits, DIC surviving parent, or Non-Service Pension.
Delivery Service Rates (R-2)
(For definitions of these charges, please view the Glossary of terms on your bill. For a complete list of the components of these charges and their values please see the “Current and Historical Delivery Service Rates” section below.)
| Service | Rate |
|---|---|
| Customer Charge | $10.00/30 days |
| Gas Delivery Charge* | $1.5016/Therm |
| Distribution Adjustment—Legacy Boston Territory** | $0.6680/Therm |
| Distribution Adjustment—Legacy Colonial Territory** | $0.5714/Therm |
* Also known as the Distribution Charge. Includes the Revenue Decoupling Adjustment Factor (RDAF).
** Also known as the Local Distribution Adjustment Factor (LDAF). The LDAF differs for customers served in National Grid’s legacy Boston Gas service territory and the legacy Colonial Gas service territory.
Rates for Supplier Services (R-2)
View our Supply Costs area for details on our Default Service pricing.
This is our standard rate for residential customers who have gas space heating equipment.
Delivery Service Rates (R-3B, R-3C)
(For definitions of these charges, please view the Glossary of terms on your bill. For a complete list of the components of these charges and their values please see the “Current and Historical Delivery Service Rates” section below.)
| Charges | Boston — R-3B | Colonial — R-3C |
|---|---|---|
| Customer Charge |
$12.00 /30 days |
$12.00/30 days |
| Gas Delivery Charge* | $0.9800/Therm | $0.9469/Therm |
| Distribution Adjustment** | $0.6680/Therm | $0.5714/Therm |
* Also known as the Distribution Charge. Includes the Revenue Decoupling Adjustment Factor (RDAF).
** Also known as the Local Distribution Adjustment Factor (LDAF). The LDAF differs for customers served in National Grid’s legacy Boston Gas service territory and the legacy Colonial Gas service territory.
Rates for Supply Service (R-3B, R-3C)
View our Supply Costs area for details on our Default Service pricing.
If you are a residential customer and you meet the requirements listed below then you may be eligible for a discount on your monthly gas bill. This will save you money and will not affect the service you currently receive. Eligible customers will receive a 25% discount reflected on their bill. To apply, please complete this Discount Rate Application form.
Eligibility Criteria (R-4B, R-4C)
- You have gas space heating equipment
- Your National Grid utility account is in your name
- And either:
- You are eligible for the low-income home energy assistance program (LIHEAP), or its successor program, for which eligibility does not exceed 200% of the federal poverty level based on a household’s gross income. (In a program year in which maximum eligibility for LIHEAP exceeds 200% of the federal poverty level, a household that is income eligible under LIHEAP shall be eligible for the low-income electric discount.)
- Or you are currently receiving benefits under one of the following means-tested programs: EAEDC, Food Stamps, WIC, Head Start, Mass Health, National School Lunch Program, Public Housing, School Breakfast Program, Supplemental Security Program, TAFDC, Veterans Programs - 115 benefits, DIC surviving parent, or Non-Service Pension.
Delivery Service Rates (R-4B, R-4C)
(For definitions of these charges, please view the Glossary of terms on your bill. For a complete list of the components of these charges and their values please see the “Current and Historical Delivery Service Rates” section below.)
| Charges | Boston — R-4B | Colonial — R-4C |
|---|---|---|
| Customer Charge |
$12.00 /30 days |
$12.00 /30 days |
| Gas Delivery Charge* | $0.9800/Therm | $0.9469/Therm |
| Distribution Adjustment** | $0.6680/Therm | $0.5714/Therm |
* Also known as the Distribution Charge. Includes the Revenue Decoupling Adjustment Factor (RDAF).
** Also known as the Local Distribution Adjustment Factor (LDAF). The LDAF differs for customers served in National Grid’s legacy Boston Gas service territory and the legacy Colonial Gas service territory.
Rates for Supply Service (R-4B, R-4C)
View our Supply Costs area for details on our Default Service pricing.
The tables below contain historical National Grid Gas Delivery Service Rates as approved by the Massachusetts Department of Public Utilities. The Boston Gas Company summaries include rates for customers receiving service on the former Colonial Gas Company rate classes as of November 1, 2021, and the former Essex Gas Company as of November 1, 2016.
Delivery Service Rates November 1, 2021, through Present
| Boston Gas |
|---|
| November 1, 2024 |
| October 1, 2024 |
| May 1, 2024 |
| April 1, 2024 |
| November 1, 2023 |
| October 1, 2023 |
| May 1, 2023 |
| November 1, 2022 |
| October 1, 2022 |
| May 1, 2022 |
| December 1, 2021 |
| November 1, 2021 |
Delivery Service Rates November 1, 2016, through October 31, 2021
Delivery Service Rates January 1, 2015, through October 31, 2016
| Boston Gas | Colonial Gas | Essex Gas |
|---|---|---|
| May 1, 2016 | May 1, 2016 | May 1, 2016 |
| November 1, 2015 | November 1, 2015 | November 1, 2015 |
| May 1, 2015 | May 1, 2015 | May 1, 2015 |