metric tons of CO2 saved per year
fuel-burning cars taken off road (equivalent)
local jobs created
local tax revenue
Site selection & preliminary design
Permitting & environmental studies
Land management & biodiversity planning
Final engineering, financing & construction
Operation & maintenance
Decommissioning & recycling
300MW powering the world’s first steel mill to run almost entirely on solar
One of Colorado’s largest solar projects, Bighorn Solar in the city of Pueblo entered commercial operation in December 2021. Lightsource bp developed, financed, and will continue to own and operate the 300 megawatt utility-scale solar project. Electricity generated from Bighorn Solar is delivered into the grid and purchased by Xcel Energy under a long-term power purchase agreement (PPA) with Lightsource bp. Xcel Energy is a major U.S. regulated electric and natural gas delivery company that serves approximately 3.7 million electricity and 2.1 million natural gas customers across parts of eight Midwestern and Western states.
Xcel Energy delivers electricity from Bighorn Solar to the EVRAZ North America Rocky Mountain Steel mill in Pueblo, one of the city’s largest employers. With its 20-year, fixed rate PPA structure, Bighorn Solar provides low-cost, stable electricity prices that the steel mill needed to stay in Pueblo and invest in its future there, supporting more than 1,000 jobs in the local community.
Bighorn Solar supports the broader Colorado Energy Plan, which will deliver 55% renewable energy to the grid by 2026 and reduce carbon emissions by 60%, as well as Xcel Energy’s bold vision to deliver 100% carbon-free electricity by 2050.
Xcel Energy and Lightsource bp are incredibly proud of this solar project, and the opportunities it offers the organizations and the local communities.
“If you were wondering what a renewable energy future would look like, this is a great example.” – Colorado Governor Jared Polis, speaking at the announcement press conference
Information and resources
We’ve put together a collection of resources for anyone who’d like to know more about our Impact Solar project
Press conference held 27 September 2019
Pueblo steel mill set to begin new green chapter with solar project
Xcel Energy, partners announce deal for large solar facility at Pueblo steel mill
Making steel with solar energy
Lightsource bp and McCarthy Building Companies Partner on Bighorn Solar Project in Pueblo, Colorado
Financial close and construction announcement
Lightsource bp launches Bighorn Solar Project in Colorado
#AmericanCleanPowerWeek video featuring Bighorn Solar
Solar project forges a bright future for Colorado steel mill
Videos of our Bighorn Solar project
Here are some project specific updates:
Bighorn: Where solar meets steel
The EVRAZ Rocky Mountain Steel Mill will become the first steel mill to run almost entirely on solar.
Introducing Bighorn Solar
Flyover footage of our site plans and extra information on the project
Creating & Retaining Jobs in Pueblo, Colorado
Our Bighorn Solar project is revitalizing the economy by creating jobs.
American Clean Power Week
Our Bighorn Solar project was featured during American Clean Power Week, 2021.
We’ve received lots of interest in our Bighorn Solar project, so we’ve put together a list of the most commonly asked questions, and their answers.
Get in touch
We are always on hand to assist with any enquiries. You can contact us via email or phone our customer services firstname.lastname@example.org
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