What's the Difference Between Delivery and Supply? 

Your electric bill includes two key components—supply and delivery.

Supply is the amount of electricity you use, while delivery is the infrastructure that brings that electricity to your home.

What is Included in Delivery?

Delivery is the entire system that brings electricity to your home, it is not just transporting electricity.

It includes maintenance of and investment in the power lines, substations and all the infrastructure needed to ensure you have reliable service at your fingertips. This also means fewer outages and improved service reliability for you and your community.

Each step of this process requires planning, maintenance and skilled employees working tirelessly behind the scenes.

The delivery charge of your bill is made up of three main categories:

1. Distribution, Operations and Service
2. Transmission
3. Public Policy
4.  

Distribution, Operations and Service

This is our core business – building and maintaining a complex network of energy delivery systems. This means upgrading equipment, repairing lines and enhancing technology to deliver energy safely and reliably.

Beyond maintaining the infrastructure that brings power to you, this service includes the cost of skilled employees that operate and maintain the local system of poles and wires and provide customer service.

The delivery charges on your energy bill are driven by how much energy you use and can vary from month to month.

Line items on your bill that fall into this category include:

• Distribution Charge per kWh
• Electric System Improvements Charge
• Distribution Customer Service Charge
• Revenue Adjustment Mechanism

Transmission

Transmission is the cost of building, maintaining and operating the regional transmission system that brings electricity from power generators to the local distribution system.

These charges are federally regulated by the Federal Energy Regulatory Commission, the independent agency that regulates the interstate transmission of electricity.

Public Policy

This portion includes costs mandated by the state and federal government for financial assistance and energy efficiency programs, purchasing renewable and carbon-free electricity, and funding solar and electric vehicle incentives to help make it easier to take advantage of clean energy options.

Through charges on your bill, you're paying to fund these programs, so we encourage you to take advantage of what's available to you.   

Line items on your bill that fall into this category include:

• Combined Public Benefits Charge
• FMCC Delivery Charge
• Competitive Transition Assessment (CTA) Charge per kWh

Your Supply Cost

We purchase electricity from third-party suppliers that generate electricity at a power plant or generating station. This is a pass-through cost to customers with no profit to Eversource.  

What is a supplier?

Suppliers generate electricity at a power plant or generating station. We purchase electricity from suppliers and it is transmitted to the electric grid.

All customers have the option of choosing Eversource or another energy supplier to obtain energy on their behalf.

How we determine the supply rate

The supply rate is based on the current market price of electricity. This price changes twice each year—on January 1 and July 1—as demand for energy increases or decreases.

How you're charged

We track your usage in kilowatt hours (kWh). This is a measure of energy use over time. We then multiply your usage by the supply rate to determine your supply charge.

Supply rate x kilowatt hours = supply charge