A Leader in The Clean Energy Transition

About Constellation

Constellation is the nation’s largest producer of carbon-free energy and provides sustainable solutions to homes, businesses, and public-sector customers across the continental United States.

Our Purpose

At Constellation, we are accelerating the transition to a carbon-free future. We’re delivering our low-carbon or no-carbon power to more people in more places, as well as providing our customers and communities with options to buy, manage, and use clean energy as part of their decarbonization mission.

Our Strategy

Discover how we have become the nation’s leader in reliable, carbon-free energy: learn more about our credentials, our value proposition, our commitment to always-on clean energy, and the industry trends positioning Constellation to lead the transition to a carbon-free future.

Our Climate Commitment

We provide 10 percent of carbon-free power in the United States, nearly 90 percent of the energy we produce is carbon-free, and we have reduced our emissions footprint by 80 percent since 2005. As a long-time industry leader, we are committed to further accelerating the transition to more sustainable energy while maintaining reliability.

From The Newsroom

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Constellation Completes Calpine Transaction, Powering America's Clean Energy Future

date picker Jan 07, 2026

Constellation Completes Calpine Transaction, Powering America's Clean Energy Future
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NRC Greenlights Constellation's $167 Million Digital Modernization Plan for Limerick Clean Energy Center; State-of-the-Art Technology Upgrades Will Enhance Reliability, Diagnostic Capability and Cyber Resilience

date picker Jan 06, 2026

NRC Greenlights Constellation's $167 Million Digital Modernization Plan for Limerick Clean Energy Center; State-of-the-Art Technology Upgrades Will Enhance Reliability, Diagnostic Capability and Cyber Resilience
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Constellation Announces Extension of Expiration for Private Exchange Offers and Consent Solicitations and Early Tender Results

date picker Dec 23, 2025

Constellation Announces Extension of Expiration for Private Exchange Offers and Consent Solicitations and Early Tender Results
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NRC Renews Operating Licenses for Clinton & Dresden; Constellation Investing $370 Million in State-of-the-Art Upgrades to Keep These Illinois Nuclear Facilities Online, Meet Rising Power Demand and Support Economic Growth

date picker Dec 16, 2025

NRC Renews Operating Licenses for Clinton & Dresden; Constellation Investing $370 Million in State-of-the-Art Upgrades to Keep These Illinois Nuclear Facilities Online, Meet Rising Power Demand and Support Economic Growth
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Constellation Wins Platts Global Energy Award for Crane Clean Energy Center Restart

date picker Dec 12, 2025

Constellation Wins Platts Global Energy Award for Crane Clean Energy Center Restart
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Our Goals for a Reliable, Carbon-Free Future

Constellation is committed to achieving 100 percent carbon-free electricity and a 100 percent reduction of operations-driven emissions by 2040. We provided 100 percent of our large business customers with customized data to help them reduce their carbon footprints.

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Preeti F.

Engineering

My favorite part of working at Constellation is developing our future workforce. It gives me great satisfaction to prepare our youth for careers in technology and engineering.

Preeti F.

Engineering

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Sukhbir J.

Market Analytics

After 14 years at Constellation, I am proud of our inclusivity and strong community. I am excited for our continued future growth as we focus on sustainability and innovation.

Sukhbir J.

Market Analytics

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Grant C.

Nuclear Operations

Working in Operations combines my passions for science, engineering and sustainability. This motivates me to help my team safely generate clean energy for our community.

Grant C.

Nuclear Operations

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Jody K.

Legal

Constellation is constantly reinventing ourselves to serve our customers and communities and to positively impact the environment, and this drives us to perform our best.

Jody K.

Legal

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Nathan H

Operational Chemistry

Constellation has given me the tools to develop myself through training, hands-on experiences and mentorship. Every day brings opportunities to learn and try something new.

Nathan H

Operational Chemistry

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Meghan D

Fleet Operations

I’m most excited about growth opportunities in our new organization. As an operator for the renewables fleet, it’s exciting to hear the potential to grow our operating assets.

Meghan D

Fleet Operations

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Darani R

Nuclear Licensing

I’m proud to work for the nation’s largest producer of carbon-free energy and to know that our commitment to providing reliable, clean energy will help future generations.

Darani R

Nuclear Licensing

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Matthew M

Retail Operations

The great thing about Constellation is all the various opportunities that the company has to offer, because we continue to grow and innovate.

Matthew M

Retail Operations

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Norha P

Plant Manager

What excites me most about the new organization is that we can deliver clean, carbon-free energy and preserve the assets of our company through innovation and leadership.

Norha P

Plant Manager

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Jennifer V

Wholesale Trading

Constellation knows how to respond to change. Whether it’s market volatility, innovation or cultural change, Constellation values a diversity of opportunity and experience.

Jennifer V

Wholesale Trading

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Amir H

Plant Manager – Hydro

Constellation is focused on being at the forefront of clean energy. All the different avenues that we are exploring to continue to be the industry leader are exciting.

Amir H

Plant Manager – Hydro

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