US Department of Energy

Xcel Energy is an electric and natural gas utility company based in Minneapolis, Minnesota, founded in 1909. It serves approximately 3.8 million electric customers and 2.2 million natural gas customers across eight states. The company is involved in the generation, transmission, distribution, and sale of electricity, utilizing a diverse mix of energy sources including coal, nuclear, natural gas, hydro, solar, biomass, oil, and wind. Xcel Energy is recognized as one of the largest suppliers of renewable energy in the United States, with over half of its electricity sales derived from carbon-free sources. Its operations are organized into five segments: electricity, natural gas, renewable energy, transmission, and innovation, which also includes the development and leasing of natural gas pipelines and related facilities.

Xcel Energy is an electric and natural gas utility company based in Minneapolis, Minnesota, founded in 1909. It serves approximately 3.8 million electric customers and 2.2 million natural gas customers across eight states. The company is involved in the generation, transmission, distribution, and sale of electricity, utilizing a diverse mix of energy sources including coal, nuclear, natural gas, hydro, solar, biomass, oil, and wind. Xcel Energy is recognized as one of the largest suppliers of renewable energy in the United States, with over half of its electricity sales derived from carbon-free sources. Its operations are organized into five segments: electricity, natural gas, renewable energy, transmission, and innovation, which also includes the development and leasing of natural gas pipelines and related facilities.

Petra Nova functions as a corporation that explores for oil and gas.

ZeaChem is focused on developing sustainable alternatives to petroleum-based fuels and chemicals, utilizing renewable biomass sources such as wood chips, wheat straw, corn stover, and grasses. The company employs a proprietary fermentation process that converts all carbon in the sugars into end products, resulting in high yields and making its products competitive with traditional fossil fuels, even without subsidies. By targeting the $1 trillion chemicals and fuels markets, ZeaChem aims to provide high-margin solutions that address environmental concerns while maintaining economic viability.