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Current and Past Business Standard Service Generation Rates

Learn about Eversource and UI Standard Service generation rates, get the facts about supplier rates and plans or check out the FAQs.

Supplier Billed Rates - Business Customers

  • Licensed suppliers use the Eversource and United Illuminating Company (UI) billing system to bill for their generation service, commonly referred to as consolidated billing.  Consolidated billing allows customers to receive one bill. Below are links to the billed rates.
  • Suppliers also have the option to directly bill their customers.  The rates charged under direct billing are not provided to Eversource or UI.  Therefore, those rates are not provided here.
  • Since 2015 the Public Utilities Regulatory Authority (PURA) has required Eversource and UI to submit all residential and business rates billed by suppliers through consolidated billing.  Eversource also provides supplier rates billed to streetlight customers.  This informaton is publicly available in Compliance Filings in PURA Docket No. 06-10-22.  Other information submitted monthly by Eversource and UI under Docket No. 06-10-22 includes sales and the number of customers served by each supplier.
  • Supplier contracts may last longer than six-month Standard Service rates and therefore may reflect risk premiums not reflected in Standard Service rates.  Supplier rates may also include other items (e.g., gift card incentives) or may support renewable energy that exceeds CT's minimum requirements.
  • Please note that the Eversource files include three tabs - residential, C&I (business rates) and StLgt (streetlight rates). 

 

Supplier Rates Billed to Eversource Business Customers Supplier Rates Billed to UI Business Customers

Information from the Public Utilities Regulatory Authority

  • Eversource and UI Standard Service is the generation option for business customers who do not choose a licensed supplier.
  • Licensed suppliers offer an alternative to Eversource and UI Standard Service Generation rates. You are not required to switch to a licensed supplier.
  • Switching to a new supplier happens on your meter reading date.
  • Eversource and UI must return small business customers to the Standard Service rate within 72 hours of the request.  Learn More.
  • Supplier offers are categorized as either Fixed or Variable on the Rate Board. Be sure to check with the supplier about early termination fees.
  • Contact PURA's Consumer Affairs Unit at 800-382-4586 with any questions about choosing a supplier.  Click here to submit an inquiry or complaint to PURA.

  Fixed Rate Plans

  • Under a Fixed plan the generation rate must be Fixed for at least four complete billing cycles. Be sure to check with the supplier about the generation rate you will be charged when a Fixed plan ends.

  Variable Rate Plans

  • Under Variable-Daily or Variable-Weekly plans the generation rate can increase/decrease during your billing cycle. The generation rate for business customers can increase any amount or percentage without being notified by your supplier.

In addition to licensing electric suppliers the Public Utilities Regulatory Authority issues a Certificate of Registration to electric aggregators.

What is an electric aggregator?

An electric aggregator gathers consumers for the purpose of negotiating the rate for generation service from an electric supplier.  An electric aggregator must negotiate with suppliers on behalf of the customers it represents. As such, an aggregator must act as the customer's agent. As a customer's agent, the aggregator may not simultaneously be an agent for one or more suppliers.

How does a registered aggregator differ from a licensed supplier?

Suppliers purchase the electricity that is provided to customers and bill for that electricity through either the customer's electric bill (commonly referred to as consolidated billing) or by directly billing the customer. Aggregators do not purchase electricity or bill for generation supply.  Instead, as noted above, aggregators gather consumers together for the purpose of negotiating the rate for generation from a supplier.

Why are aggregators allowed to post offers on Connecticut's Rate Board?

PURA oversees suppliers and aggregators and posts generally available rates to the Rate Board.  If an aggregator can offer a generally available rate to residential or business customers it may be posted to the Rate Board.

How do aggregators get paid?

Aggregators must act as the customer's agent.  As such, customers typically pay the aggregator for their service.

If I am paying an aggregator, who is my supplier?

Aggregators gather consumers and negotiate rates from suppliers on behalf of those customers.  The aggregator then selects the supplier and rate that is offered to its customers.  Customers who choose to work with an aggregator will be served through the supplier that is selected by the aggregator.

Will the name of the aggregator appear on my electric bill?

No.  Information on your bill will reflect the licensed supplier that is providing your generation service.

 

Eversource
2020-Present Business Standard Service Generation Supply Rates
(cents/kWh)

Rate 2020 2021 2022
Jan.-June * July-Dec. * Jan.-June * July-Dec. * Jan.-June  July-Dec. 
Rate 27 Peak 11.665 9.427 10.265 8.907    
Rate 27 Off-Peak 8.665 6.427 7.265 5.907    
Rate 29 9.604 7.421 8.192 6.918    
Rate 30 9.604 7.421 8.192 6.918    
Rate 35 9.604 7.421 8.192 6.918    
Rate 37 Peak 11.665 9.427 10.265 8.907    
Rate 37 Off-Peak 8.665 6.427 7.265 5.907    
Rate 40 9.604 7.421 8.192 6.918    
Rate 41 Peak 11.641 9.452 10.353 8.995    
Rate 41 Off-Peak 8.641 6.452 7.353 5.995    
Rate 55 Peak 11.641 9.452 10.353 8.995    
Rate 55 Off-Peak 8.641 6.452 7.353 5.995    
Rate 56 Peak 11.641 9.452 10.353 8.995    
Rate 56 Off-Peak 8.641 6.452 7.353 5.995    
Rate 115 9.604 7.421 8.192 6.918    
Rate 116 10.321 7.252 8.574 6.759    
Rate 117 10.321 7.252 8.574 6.759    
Rate 119 9.514 7.325 8.201 6.862    

Rate 27 - Small Business - Peak & Off-Peak time-of-use
Rate 29 - Outdoor recreational lighting
Rate 30 - Small Business
Rate 35 - Medium Business
Rate 37 - Medium Business - Peak & Off-Peak time-of-use
Rate 40 - Small Church & School
Rate 41 - Large Church & School* - Peak & Off-Peak time-of-use
Rate 55 - Medium Manufacturing* - Peak & Off-Peak time-of-use
Rate 56 - Medium Non-Manufacturing* - Peak & Off-Peak time-of-use
Rate 115 - Unmetered Service
Rate 116 - Streetlighting - Eversource-owned equipment
Rate 117 - Streetlighting - Customer-owned equipment

Peak and Off-Peak time-of-use rates are charged to Eversource business customers taking service under Rates 27, 37, 41, 55, and 56.
Peak rates are charged from noon to 8 p.m. weekdays or about 24% of total weekly hours.
Off-Peak rates are charged from 8 p.m. to noon on weekdays and all weekend hours or about 76% of total weekly hours.

*Monthly demand of less than 500kW.

 

United Illuminating
2020-Present Business Standard Service Generation Supply Rates
(cents/kWh)

Rate 2020 2021 2022
Jan.-June * July-Dec. * Jan.-June * July-Dec. * Jan.-June  July-Dec. 
Rate GS 10.4432 8.5218 9.0725 7.8593    
Rate GST Peak 12.4822 10.5543 11.1171 9.8993    
Rate GST Off-Peak  9.4822 7.5543 8.1171 6.8993    
Rate LPT Peak 12.4822 10.7340 11.2149 10.0198    
Rate LPT Off-Peak 9.4822 7.7340 8.2149 7.0198    
Rate M 10.9333 8.7337 9.3179 6.2482    
Rate U 10.9333 8.7337 9.3179 6.2482    

Rate GS - General Service
Rate GST General Service - Peak & Off-Peak time-of-use
Rate LPT* - Large Power Peak & Off-Peak time-of-use
Rate M - Street & Security Lighting
Rate U - Street & Security Lighting

Peak and Off-Peak time-of-use rates are charged to UI business customers taking service under Rates GST and LPT.
Peak rates are charged from 10 a.m. to 6 p.m. weekdays or about 24% of total weekly hours.
Off-Peak rates are charged from 6 p.m. to 10 a.m. on weekdays and all weekend hours or about 76% of total weekly hours.

*Monthly demand of less than 500kW.

 

Eversource
2017-2019 Business Standard Service Generation Supply Rates
(cents/kWh)

Rate 2017 2018 2019
Jan.-June * July-Dec. * Jan.-June * July-Dec. * Jan.-June * July-Dec. *
Rate 27 Peak 9.789 10.325 11.353 11.440 12.912 10.790
Rate 27 Off-Peak 6.789 7.325 8.353 8.440 9.912 7.790
Rate 29 7.733 8.313 9.304 9.422 10.851 8.796
Rate 30 7.733 8.313 9.304 9.422 10.851 8.796
Rate 35 7.733 8.313 9.304 9.422 10.851 8.796
Rate 37 Peak 9.789 10.325 11.353 11.440 12.912 10.790
Rate 37 Off-Peak 6.789 7.325 8.353 8.440 9.912 7.790
Rate 40 7.733 8.313 9.304 9.422 10.851 8.796
Rate 41 Peak 9.881 10.458 11.474 11.578 13.031 10.368
Rate 41 Off-Peak 6.881 7.458 8.474 8.578 10.031 7.368
Rate 55 Peak 9.881 10.458 11.474 11.578 13.031 10.368
Rate 55 Off-Peak 6.881 7.458 8.474 8.578 10.031 7.368
Rate 56 Peak 9.881 10.458 11.474 11.578 13.031 10.368
Rate 56 Off-Peak 6.881 7.458 8.474 8.578 10.031 7.368
Rate 115 7.773 8.313 9.304 9.422 10.851 8.796
Rate 116 7.896 8.413 9.728 9.660 11.596 7.226
Rate 117 7.896 8.413 9.728 9.660 11.596 7.226
Rate 119 7.730 8.313 9.314 9.437 10.869 8.245

Rate 27 - Small Business - Peak & Off-Peak time-of-use
Rate 29 - Outdoor recreational lighting
Rate 30 - Small Business
Rate 35 - Medium Business
Rate 37 - Medium Business - Peak & Off-Peak time-of-use
Rate 40 - Small Church & School
Rate 41 - Large Church & School* - Peak & Off-Peak time-of-use
Rate 55 - Medium Manufacturing* - Peak & Off-Peak time-of-use
Rate 56 - Medium Non-Manufacturing* - Peak & Off-Peak time-of-use
Rate 115 - Unmetered Service
Rate 116 - Streelighting - Eversource-owned equipment
Rate 117 - Streetlighting - Customer-owned equipment

Peak and Off-Peak time-of-use rates are charged to Eversource business customers taking service under Rates 27, 37, 41, 55, and 56.
Peak rates are charged from noon to 8 p.m. weekdays or about 24% of total weekly hours.
Off-Peak rates are charged from 8 p.m. to noon on weekdays and all weekend hours or about 76% of total weekly hours.

*Monthly demand of less than 500kW.

 

United Illuminating
2017-Present Business Standard Service Generation Supply Rates
(cents/kWh)

Rate 2017 2018 2019
Jan.-June * July-Dec. * Jan.-June * July-Dec. * Jan.-June * July-Dec. *
Rate GS 9.0070 7.5374 9.4509 9.0065 10.7754 8.4125
Rate GST Peak 10.9813 9.5870 11.3776 11.0325 12.8050 10.4260
Rate GST Off-Peak  7.9813 6.5870 8.3776 8.0325 9.8050 7.4260
Rate LPT Peak 11.1158 9.6825 11.5397 11.2528 12.9081 10.5997
Rate LPT Off-Peak 8.1158 6.6825 8.5397 8.2528 9.9081 7.5997
Rate M 9.0891 7.7361 9.8006 9.3261 11.3612 8.7093
Rate U 9.0891 7.7361 9.8006 9.3261 11.3612 8.7093

Rate GS - General Service
Rate GST General Service - Peak & Off-Peak time-of-use
Rate LPT* - Large Power Peak & Off-Peak time-of-use
Rate M - Street & Security Lighting
Rate U - Street & Security Lighting

Peak and Off-Peak time-of-use rates are charged to UI business customers taking service under Rates GST and LPT.
Peak rates are charged from 10 a.m. to 6 p.m. weekdays or about 24% of total weekly hours.
Off-Peak rates are charged from 6 p.m. to 10 a.m. on weekdays and all weekend hours or about 76% of total weekly hours.

*Monthly demand of less than 500kW.

Past Business Standard Service Generation Rates

  • The graphs show the trend in Standard Service generation rates for business customers.  Rates are rounded.  Complete rates are shown on the 'Rates Table' tab.
  • In some years, Standard Service rates changed on January 1st and were fixed for one year.  One-year fixed rates appear on the graph as the same rate on January and July 1st.
  • In some years, Standard Service rates changed on January and July 1st and were fixed for six months. Six-month fixed rates appear on the graph as different rates on January and July 1st.
  • Standard Service rates are approved by PURA about 45 days before their effective date; around May 15th for rates in effect July 1st and around November 15th for rates in effect January 1st.

 

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Standard Service Generation

  • Standard Service is the generation supply option provided by Eversource and United Illuminating (UI) and is available to all residential customers. However, customers can choose a licensed supplier for their generation services which may lower their cost.
     
  • Eversource and UI do not own electric generation plants or produce electricity.  Instead, they buy electricity in the marketplace to serve customers on Standard Service Generation.  So Standard Service Generation rates are based on the market price for electricity.
  • Standard Service Generation rates change on January 1st and July 1st and are fixed for six months.
     
  • Customers who wish to return to the Standard Service rate must contact Eversource or UI. Eversource and UI are required to switch residential customers back to the Standard Service rate within 72 hours of the request and will prorate your bill accordingly. Be sure to check with your supplier regarding cancellation fees that may apply. Learn more about returning to Standard Service Generation.
     
  • You can compare Standard Service Generation rates to offers from licensed suppliers on Connecticut's Official Rate Board.  Click here to access the Rate Board.
  • It is important to know that regardless of the electric supplier you choose, Eversource or UI will deliver your electricity, bill you for service, and respond to power outages. Only Eversource or UI can terminate your service
  • If you have questions or need help with choosing an electric supplier contact the Public Utilities Regulatory Authority's Consumer Affairs Unit at (800) 382-4586.

Frequently Asked Questions About Choosing A Supplier

Q.

What is Supplier Choice?

A.

Your electric bill is divided into two major sections: delivery and generation. Since 2000 the generation portion of your bill has been deregulated, meaning that independent companies, known as “electric suppliers,” can compete to sell generation services. Customers of Eversource and UI have the option to receive generation service from a licensed supplier or to remain with and receive generation service from Eversource or UI.  The delivery costs on your bill remain fully regulated.

Q.

What are some questions that I should ask suppliers?

A.

 

  • Is the generation rate fixed or variable?
  • How long is the contract?
  • Will the contract automatically renew at the end of the term?
  • Will you notify me at the end of the contract?
  • Is there an early termination fee?
  • What are the monthly savings if I switch?
  • How is the electricity generated – coal, gas, nuclear, hydroelectric, solar or wind?
  • What percentage of the electricity is produced from renewable sources?
  • Where does the renewable portion come from?
  • Is a security deposit, enrollment, or other fee required?
  • Do you offer any benefits like a home energy assessment or an enrollment bonus.

 

Q.

Why should I choose an electric supplier?

A.

Most people choose an electric supplier to lower their electricity costs while others switch to support renewable energy.

Q.

How long does it take to switch my electric supplier?

A.

The switch happens on your next meter reading date and the meter reading date is shown on your electric bill.  Be sure to ask the supplier how your meter reading date will affect the date you switch.

Q.

Is Eversource or UI my electric supplier?

A.

Eversource and UI provide Standard Service Generation to customers who do not choose another electric supplier.

Q.

What happens after I switch to a licensed supplier?

A.

Eversource or UI will continue to deliver electricity to your home or business and send the electric bill. The only difference is that the Generation Service rate on your bill will reflect the rate charged by the electric supplier. 

Q.

How do I return to Eversource or UI Standard Service?

A.

You must contact Eversource or UI to return to Standard Service generation. 
Click here to view the information you need to transfer to Eversource or UI Standard Sevice generation.

Q.

Do Eversource or UI own electric generating plants?

A.

No. Eversource and UI no longer own power plants or produce electricity. Instead, they buy electricity from wholesale suppliers for delivery to customers who have not chosen an electric supplier.

Q.

Will Eversource or UI be upset if I choose an electric supplier?

A.

No. Eversource and UI encourage their customers to choose an electric supplier to help lower energy costs.

Q.

Do Eversource or UI earn a profit by providing Standard Service generation?

A.

No. Eversource and UI buy electricity from wholesale suppliers for delivery to their customers. All customers pay what Eversource and UI pay to purchase this electricity - no more or no less. Eversource and UI do not profit from the electricity they deliver to you; they just pass through the cost.

Q.

Can an electric supplier shut off my electricity?


A.

No. Only Eversource or UI can shut off your electric service.

Q.

Who sends me a bill if I choose a licensed supplier?

A.

You will continue to receive one electric bill from Eversource or UI. The only difference is that the generation rate on your bill will reflect the rate offered by the electric supplier you selected.  Some suppliers offer direct billing. If you choose direct billing you will receive two bills - one from Eversource or UI for delivery service and one from the electric supplier for generation service.

Q.

Do any suppliers offer electricity produced from wind, solar, or other renewable sources?

A.

Yes. There are many suppliers who offer electricity produced from renewable sources and that exceed the Connecticut minimum Renewable Portfolio Standard (RPS). Look for offers that exceed the minimum RPS on Connecticut's Rate Board and be sure to ask the supplier about their renewable energy plan, how the renewable energy is generated and if the supplier buys renewable energy credits for their renewable energy offers.