Beatrice Lang
Constellation is a premier residential electric company that offers fixed-rate electricity plans and competitive pricing to residents in deregulated energy markets. Constellation serves residents in Texas, Georgia, Connecticut, Illinois, Indiana, Massachusetts, Maryland, Michigan, Nebraska, New Jersey, Ohio, Pennsylvania, Virginia, Wyoming, and Washington, D.C. Delmarva Power is a utility company that delivers electricity to customers in Delaware and Maryland. Constellation offers a variety of home energy options, including electricity, natural gas, and renewable energy, while Delmarva Power is in charge of delivering electricity to your home.
| Characteristics | Values |
|---|---|
| Company Type | Retail electricity supplier |
| Service | Constellation provides energy plans and solutions |
| Location | Delaware, Texas, Georgia, Connecticut, Illinois, Indiana, Massachusetts, Maryland, Michigan, Nebraska, New Jersey, Ohio, Pennsylvania, Virginia, Wyoming, Washington, D.C. and Atlanta |
| Plans | Fixed-rate, variable-rate, renewable, natural gas, smart home bundles, solar electricity |
| Customer Service | 24/7 support via call center, live chat, or email |
| Reviews | 4.49/5 based on 6,000+ reviews |
| Awards | Top Provider of 2025 by ElectricityRates.com |
| Community Work | Donated over $400,000 to non-profit groups |
| Customer Benefits | No hidden fees, no sign-up fees, no switching fees, 90-day guarantee |
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What You'll Learn
Constellation's fixed-rate plans
Constellation is a retail electricity supplier in Delaware, which means that it is not the utility company that delivers electricity to your home, but the one that sets your rate and contract term. Constellation provides its customers with customized energy plans, competitive Delaware electric rates, and exceptional customer service.
Constellation offers fixed-rate plans that allow you to pay the same price for electricity throughout your contract period. Fixed-rate plans are perfect if you enjoy price certainty and predictability. With one of these residential electricity plans, you pay the same price per unit of energy over your entire contract period. All you have to do is monitor your home's usage to keep costs where you want them. Fixed-rate plans are also available for natural gas, allowing you to lock in your energy rate and avoid untimely fluctuations on your gas bill.
Depending on the state you live in, your residential electricity could be generated from clean, renewable wind and/or solar sources. You can enter your zip code to compare fixed-rate electricity plans that are sourced by 100% wind and/or solar power for your home, so you know exactly how your energy is produced.
Constellation has been awarded Top Provider of 2025 by ElectricityRates.com for its innovative electricity plans, excellent customer service, and positive impact on communities. Constellation offers a wide variety of energy plans and solutions, including low fixed-rate electricity and natural gas plans, 100% renewable plans, and smart home bundles.
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Constellation's variable-rate plans
Constellation is a retail electricity supplier in Delaware, which means that it is not the utility company that delivers electricity to your home, but the one that sets your rate and contract terms. Constellation provides its customers with customized energy plans, competitive electricity rates, and exceptional customer service.
Constellation offers both fixed-rate and variable-rate plans. Variable-rate plans are only available in Texas, where customers pay the current market price for electricity, which fluctuates. This means that the price of electricity is dependent on the market price at the time of use. This is in contrast to fixed-rate plans, where customers pay the same price per unit of energy over their entire contract period.
Variable-rate plans are a good option for those who want to take advantage of potential dips in the market price of electricity. However, it is a riskier option, as the price can increase without notice. Constellation offers a range of variable-rate plans to its customers, allowing them to choose the plan that best fits their household energy needs and budget.
Constellation provides a simple and straightforward sign-up process that can be completed in a matter of minutes. Customers can enter their zip code to view the available plans in their area and make an informed decision about their energy supplier. Constellation also offers a variety of energy-focused products and services, such as EV charging station installation for electric vehicle owners in Maryland and Texas, and energy-efficient upgrades for homes.
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Delmarva's power outage number
Constellation is an electricity supplier in Delaware, which means that it is not the utility company that delivers electricity to your home but the one that sets your rate and contract term. As a retail electric supplier, Constellation provides its customers with customized energy plans, competitive Delaware electric rates, and exceptional customer service.
In Delaware, electric utilities used to be the only option for energy users. The utility company controlled delivery, pricing, and maintenance. Today, Delaware residents can choose their electricity supplier, meaning they can compare electric plans and select the best rate and plan for their needs.
Constellation offers electricity plans to Delaware residents with fixed-rate plans, excellent customer services, and no sign-up fees. Fixed-rate electricity plans are perfect if you enjoy price certainty and predictability. With one of these residential electricity plans, you pay the same price per unit of energy over your entire contract period.
If you are experiencing a power outage, call your electric utility in Delaware: Delmarva Power at 800-898-8042. You can also sign up to receive power outage alerts from your utility company in Delaware: Delmarva Power.
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Constellation's customer service
Constellation is a retail electricity supplier in Delaware, Maryland, and several other states. It is not a utility company and does not deliver electricity to homes. Instead, it sets the rate and contract terms for its customers. Constellation provides its customers with customized energy plans, competitive electric rates, and exceptional customer service.
Constellation offers a variety of energy plans, including fixed-rate plans, variable-rate plans, and renewable energy plans. Fixed-rate plans allow customers to pay the same price for electricity throughout their contract period, providing price certainty and predictability. Variable-rate plans, on the other hand, fluctuate based on market prices. Constellation also offers renewable energy plans sourced by wind and/or solar power, as well as solar electricity plans in partnership with Sunrun.
In addition to its energy plans, Constellation provides home services such as EV charging station installation for electric vehicle owners in select areas, as well as energy-efficient upgrades for homes. Constellation also has a Community Champions program, through which it has donated over $400,000 to non-profit groups across the country.
Overall, Constellation is known for its competitive pricing, excellent customer service, and commitment to working with local communities. It has been recognized as a top provider in ElectricityRates.com's list of the Best Electricity Providers, with a rating of 4.49/5 based on over 6,000 reviews.
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Constellation's renewable energy plans
Constellation is a retail electricity supplier in Delaware, which means that it sets the rate and contract term for customers' electricity supply. Constellation provides customers with customized energy plans, competitive Delaware electric rates, and exceptional customer service.
Constellation is a trusted energy company with no hidden fees and a variety of electric plans in Delaware to fit your life and budget. The company offers fixed-rate plans, excellent customer services, and no sign-up fees.
Constellation also serves residents in Texas, Georgia, Connecticut, Illinois, Indiana, Massachusetts, Maryland, Michigan, Nebraska, New Jersey, Ohio, Pennsylvania, Virginia, Wyoming, Washington, D.C., and Atlanta.
Constellation offers renewable energy solutions and plans to residents in competitive energy markets, so customers can lock in a rate that fits their budget, values, and renewable electricity needs. Constellation offers renewable energy supply to residents in Connecticut, Delaware, Illinois, Massachusetts, Maryland, New Jersey, Ohio, Pennsylvania, Texas, and Washington, D.C.
The company provides renewable energy solutions for homes, including plans sourced by 100% renewable wind and/or solar power. Renewable energy, also known as green energy, generally refers to electricity generated by resources that replenish themselves naturally, such as the sun, wind, earth, and water.
Constellation is the nation's largest producer of carbon-free energy and provides sustainable solutions to homes, businesses, and public-sector customers. Constellation has reduced its emissions footprint by 80% since 2005 and is committed to achieving 100% carbon-free electricity and a 100% reduction of operations-driven emissions by 2040.
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Frequently asked questions
Constellation is a premier residential electric company that offers fixed-rate electricity plans and competitive pricing to residents in deregulated energy markets. Constellation serves residents in Connecticut, Delaware, Illinois, Massachusetts, Maryland, New Jersey, Ohio, Pennsylvania, Texas, and Washington, D.C.
Delmarva Power is a utility company that delivers electricity to residents in Delaware and Maryland.
Constellation offers a variety of energy plans and solutions, including low fixed-rate electricity and natural gas plans, 100% renewable plans, and smart home bundles. Constellation has been recognised for its excellent customer service, whereas Delmarva Power is simply the utility company that delivers electricity and does not offer different plans or rates.
