Hourly Carbon-Free Energy Matching

America’s Clean Energy Journey

From the beginning of the modern electric grid over 100 years ago until now, the energy industry’s primary objective has been to provide reliable and affordable power to American families and businesses, whenever and wherever they need it. In turn, the engineering and design of the grid have followed the fundamental principle that power generation and delivery must be designed to reliably meet energy demand on a moment-to-moment basis. In the industry, we refer to this basic principle as matching generation to load. 


Until recently, the primary sources of generation were carbon-emitting, like coal, natural gas and oil. At the start of the 21st century, companies began looking for ways to reduce their carbon footprints by matching energy use with renewable energy certificates (RECs) to reduce emissions associated with their energy use on an annual basis. Eventually, those companies set goals to reach net zero. 

That’s a great start, but annualized RECs don’t ensure that the energy being used by a customer is actually carbon-free at the point in time it is being used. As a result, many companies still rely on electricity from carbon-emitting power plants, which makes it difficult for them to achieve their carbon reduction goals.

Despite their limitations, RECs have been very effective at funding a significant wave of renewable energy construction and will remain a useful tool. But one shortcoming is that they incentivize developers to build renewable resources in places where the power isn’t actually needed. 

To solve this problem, we need to do better than RECs and annual estimates. For companies to truly meet their carbon-free goals, we need hourly carbon-free energy matching, a game-changing approach to clean energy procurement that matches a customer’s electricity needs with regional, clean, carbon-free energy, when and where it is needed. 

Constellation was Built for This

As the nation’s largest producer of carbon-free energy and a leading competitive retail supplier of power and energy products and services, Constellation is uniquely positioned to help our customers ― and the nation ― achieve our collective clean energy goals. 

Constellation is leading the way by working with Microsoft to launch an hourly carbon-free matching platform that matches a customer’s electricity needs with regional, clean, carbon-free energy 24 hours a day, seven days a week, 365 days a year. The result isn’t net zero, it’s actual zero. 

This evolution will fundamentally change how we power the American economy and bring the right mixture of carbon-free nuclear, solar, wind and hydro power to every corner of the nation, eliminating our reliance on fossil fuels. 

Where Policy Meets Purpose

Through industry standardization, modern market mechanisms, new technology and progressive policies, Constellation will help make actual zero a reality for businesses and enterprises across the country.

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