Newsroom: Press Release

Southwire Signs Offsite Renewable Agreement with Constellation to Support Solar Energy

BALTIMORE — Constellation, a leading competitive energy and energy solutions provider, and Southwire, one of the world's leading manufacturers of wire and cable, tools, components and assembled solutions, announced today that they have entered into a long-term renewable energy certificate (REC) purchase agreement through which Southwire will match approximately 33% of its annual electricity use with RECs sourced from the Rayos del Sol solar project in Cameron County, Texas. Each REC represents the environmental attributes associated with one megawatt-hour of solar energy generated by the Rayos del Sol project and delivered onto the electricity grid.

As a result of Southwire’s long-term commitment, Constellation has entered into a separate agreement with 174 Power Global and TotalEnergies — co-owners of Rayos del Sol — to support a 72-MW expansion of the project. (Constellation signed a 108-MW agreement in 2020 to supply three commercial customers via Rayos del Sol.) The expansion is expected to achieve commercial operation by April 2022.

Southwire’s commitment is expected to help reduce carbon dioxide emissions associated with its energy use by more than 80,000 metric tons each year, the equivalent of removing more than 17,000 passenger vehicles from the road in one year, according to U.S. Environmental Protection Agency estimates.

The deal will also contribute to Southwire’s aggressive carbon zero goal to eliminate or offset all its scope 1 and 2 GHG emissions by 2025.

“In July 2020, we announced our goal to eliminate or offset all greenhouse gas emissions from our operations, and since then, we’ve started to install visible signs of this commitment, including electric vehicle charging stations and solar panels at some of our facilities,” said Burt Fealing, EVP and general counsel, Southwire. “We are pleased to collaborate with Constellation — in addition to customers, suppliers and academic institutions — to further drive sustainability across our footprint and support the transition to a low-carbon economy. Although we can achieve a lot on our own, by working with others, we can make a broader, more sustainable impact.”

To simplify the purchase, Southwire will use an innovative renewable purchasing structure that builds off of another Constellation offering, Constellation Offsite Renewables (CORe) retail power product. Constellation’s CORe product enables the development of, and increases businesses’ access to, new-build renewable energy projects by removing the significant hurdles associated with traditional offsite power purchase agreements (PPAs). The structure employed for Southwire has similar benefits, but is not tied to a Constellation retail power agreement. This allows Southwire to efficiently address the needs of its decentralized locations, many of which are in fully regulated retail energy markets. Constellation’s approximately nine-year agreement with Southwire begins in April 2022.

“This innovative product structure will enable Southwire to receive renewable energy certificates (RECs) created by Rayos del Sol at a known contract price without facing the hourly settlement price associated with virtual power purchase agreements,” said Mark Huston, president of Constellation’s National Retail Business. “We commend Southwire on its aggressive climate change goals and are proud to offer a clean energy solution to help them deliver on their genuine commitment to sustainability.”

About Southwire

A leader in technology and innovation, Southwire Company, LLC is one of North America’s largest wire and cable producers and an emerging influence in the industrial electrical space. Southwire and its subsidiaries manufacture building wire and cable, utility products, metal-clad cable, portable and electronic cord products, OEM wire products and engineered products. In addition, Southwire supplies assembled products, contractor equipment and hand tools. For more on Southwire’s products, its community involvement and its vision of sustainability, visit

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