Energy Harbor

What Energy Harbor does

Energy Harbor is a U.S. retail energy supplier and nuclear power generator serving approximately one million residential and business customers across six deregulated states — Ohio, Pennsylvania, Illinois, Maryland, Michigan, and New Jersey. The company operates a fleet of three nuclear power plants (Perry, Davis-Besse, Beaver Valley) totaling approximately 4.5 GW of zero-carbon generation capacity, and was founded in 2016 as a spinoff of FirstEnergy Solutions' competitive generation business, emerging from Chapter 11 restructuring in 2018.

The company's product portfolio centers on fixed-rate residential and commercial electricity and natural gas supply (the Safe Harbor brand, with contract terms from 12 to 36 months), the AllGreen Green-e certified renewable electricity certificate product, and Emission-Free Energy Certificates (EFECs) sourced from its nuclear fleet and tracked through PJM's Generation Attribute Tracking System (GATS). Business customers in education, hospitality, manufacturing, healthcare, and government sectors receive dedicated specialist coverage and access to 24/7 Carbon Free Power offerings. Pricing is competitively benchmarked against state-run comparison portals such as Ohio's Apples to Apples.

Revenue is generated through recurring per-kWh supply charges on residential contracts, fixed-price commercial contracts, and nationwide subscription-based carbon offset sales to corporate ESG buyers. Distribution is omnichannel: online enrollment, phone-based customer service, state comparison portals, and direct enterprise sales. In March 2024, Energy Harbor was acquired by Vistra Corp for $3.43 billion and now operates as a wholly-owned subsidiary within Vistra's integrated generation-and-retail platform, benefiting from the parent's December 2025 FERC data center co-location catalyst and investment-grade balance sheet.

Name

Energy Harbor

Legal name

Energy Harbor Corp.

Website

https://energyharbor.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Energy Harbor is a U.S. retail electricity and natural gas supplier serving roughly one million residential and business customers across six deregulated states, backed by 4.5 GW of owned nuclear generation and operated as a wholly-owned subsidiary of Vistra Corp since March 2024.

Ownership category

akta.pro rank

Headquarters

HQ city

Akron

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Infrastructure, Operations, Supply Chain, Personnel, Marketing or Sales, Technology or R&D

Revenue model

1. Retail Electricity Supply: Energy Harbor supplies electricity to residential and business customers in deregulated energy states. The company purchases power from regional transmission organizations (RTOs) equivalent to customer electricity usage. Revenue is generated through fixed-rate and variable-rate supply contracts with customers paying per kilowatt-hour based on their selected plan type.
2. Natural Gas Supply: The company also supplies natural gas to residential customers, offering fixed-rate plans for gas supply to protect against seasonal price fluctuations.
3. Emission-Free Energy Certificates (EFECs): Carbon offset products where businesses can purchase EFECs representing megawatt hours of clean nuclear energy to offset their carbon footprint. EFECs address Scope 2 emissions from energy consumption and provide offsets for Scope 1 and 3 emissions. Contract terms up to 10 years are available for customers nationwide, regardless of state regulatory environment.
4. Renewable Energy Certificates (RECs): AllGreen is Energy Harbor's 100% Green-e certified renewable electricity certificate product. RECs represent environmental benefits of 1 MWh of renewable energy from wind or solar generation that can be paired with electricity supply. The company sells REC products from regionally certified wind, solar, and emission-efficient sources.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Energy Harbor is a retail energy supplier and nuclear power generator that sells electricity and natural gas to approximately one million residential and business customers across deregulated U.S. markets including Ohio, Pennsylvania, Illinois, Maryland, Michigan, and New Jersey. The company also sells Emission-Free Energy Certificates (EFECs) and Green-e certified renewable energy certificates (AllGreen) as carbon offset products for corporate sustainability buyers nationwide. Energy Harbor operates three nuclear plants (Perry, Davis-Besse, Beaver Valley) with about 4.5 GW of carbon-free generation capacity.

Product overview

Energy Harbor is a retail energy supplier offering a portfolio of clean energy products and services for residential and business customers across multiple U.S. states. The product lineup centers on Safe Harbor Fixed Rate Plans for residential customers, supplemented by Green Energy Plans and the AllGreen® Green-e® certified renewable electricity product. For businesses, the company provides Fixed Price and Energy Only plans, 24/7 Carbon Free Power products, and Emission-Free Energy Certificates (EFECs) for carbon offset programs. The company also offers industry-specific solutions for Education, Hospitality, Manufacturing, Healthcare, and Government sectors. All products are designed to deliver carbon-free and reliable energy with competitive, stable pricing to homes and businesses primarily in Ohio and Pennsylvania.

Differentiator

Problem solved

Functional benefit

Brands

• AllGreen: Energy Harbor's 100% Green-e certified renewable electricity certificate product offering.
• Safe Harbor
• EFEC (Emission-Free Energy Certificates)

Products and services

• Safe Harbor Fixed Rate Plans

Quantifiable outcome

• 117 million pounds of CO2 avoided annually for customers using Green-e Certified or Carbon free products
• +1 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Vistra CorpcoreOthers · 1 March 2024Vistra Corp completed the $3.43 billion acquisition of Energy Harbor in March 2024, making Energy Harbor a wholly-owned subsidiary. The acquisition significantly expanded Vistra's zero-carbon nuclear fleet with three major nuclear plants (Perry, Davis-Besse, Beaver Valley) adding approximately 4.5 GW of generation capacity. This positioned Vistra as the second-largest competitive nuclear operator in the United States.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Talen Energy: Independently operated competitive power generator and retail electricity supplier with a PJM-located nuclear fleet (Susquehanna). Closest direct comparable to Energy Harbor on the combination of nuclear baseload generation and competitive retail supply in the same Mid-Atlantic geography.
• ENGIE Resources: Competitive retail electricity and natural gas supplier to large commercial, industrial, and institutional customers across multiple U.S. deregulated markets. Comparable in targeting enterprises, healthcare, education, and government segments with carbon-free and renewable supply options.
• Direct Energy: Retail electricity and natural gas supplier operating across many of the same deregulated states (PA, OH, IL, NJ, MD, MI) as Energy Harbor. Competes head-to-head in residential and small business supply with similar fixed-rate and variable-rate plan structures.
• Shell Energy North America: Wholesale and retail electricity and natural gas supplier serving commercial and industrial customers across North America, including deregulated markets overlapping with Energy Harbor's footprint. Comparable on enterprise sales motion, fixed-price structures, and ESG/sustainability product offerings.

Others

• Vistra Corp: Energy Harbor's parent company since March 2024 following the $3.43B acquisition. While Vistra is the acquirer rather than a peer, it operates overlapping competitive retail supply, nuclear generation, and zero-carbon energy offerings through its integrated model that now includes Energy Harbor's assets.

Broad incumbents

• NRG Energy: Large competitive retail electricity and natural gas supplier with a diversified generation fleet and significant customer overlap in Texas and the Northeast. Competes directly with Energy Harbor in deregulated supply markets and operates Direct Energy as a retail sub-brand.
• Constellation Energy: Largest U.S. competitive nuclear operator with ~22 GW of nuclear capacity and a competitive retail supply arm serving similar Mid-Atlantic customers. Direct comparability on the 24/7 carbon-free energy thesis and PPAs with hyperscalers like Microsoft, though Constellation is several times larger and broadly diversified across generation technologies.
• FirstEnergy Corp: Energy Harbor's corporate predecessor (formerly FirstEnergy Solutions), now operating as a regulated Ohio utility holding company. Comparable on geography and customer base in Ohio, though FirstEnergy is now purely regulated and not a direct competitor in competitive retail supply.
• Exelon Corporation: Large regulated and competitive energy company with significant nuclear generation and competitive retail supply operations through Constellation (now separated). Comparable on nuclear baseload generation footprint and Mid-Atlantic customer base, though Exelon's regulated utility mix differs structurally from Energy Harbor's fully competitive model.

Emerging players

• 3Degrees: Renewable energy certificate (REC) and carbon offset broker serving corporate sustainability buyers. Comparable to Energy Harbor's AllGreen and EFEC products, though 3Degrees is asset-light and does not own generation — it competes for the same corporate ESG procurement wallet.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks1 record

Key highlights5 records

Customer concentration

• Xx.com/energyharbor
• Facebookfacebook.com/pages/category/Energy-Company/Energy-Harbor-114902329949742
• LinkedInlinkedin.com/company/energy-harbor
• Instagraminstagram.com/energy_harbor?igshid=3kc0qgrxl5db

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Energy Harbor