Alliant Energy advances CO2-based long-duration storage project

  • Gas
  • July 22, 2025

Utility company Alliant Energy has received approval from the Wisconsin Public Service Commission (PSC) to advance its Columbia energy storage project, which will use carbon dioxide-based technology for long-duration energy storage.

The Columbia energy storage project will take energy from the grid and convert CO2 gas into a compressed liquid form for long-term storage. Then, when the stored energy is needed, the system converts the liquid CO2 back to a gas, which powers a turbine to create electricity.

Raja Sundararajan, Executive Vice-President of Strategy and Customer Solutions at Alliant Energy, welcomed the PSC’s approval.

“The Columbia Energy Storage Project positions us to meet the growing energy needs of our customers and the communities we serve,” he said. “It’s also a key part of our balanced energy mix, our roadmap for delivering the reliable, cost-effective energy customers count on.”

… to continue reading this article and more, please login, register for free, or consider subscribing to gasworld

You’ve reached your weekly limit to access free articles!

Want to keep reading?

Please register for free and create a profile to gain access to this full article and gasworld’s daily news.

For access to more content including our monthly digital magazines, subscriber-only features or columns and all our other gasworld archives, please consider subscribing.

Alternatively, you can continue reading more articles as a guest on Wednesday, 23rd July at 10:28AM

   

  • Related Posts

    • Gas
    • May 1, 2026
    INEOS and Sandpiper to develop $1.7bn blue methanol plant in Texas City

    By 13 min ago 2 min read British specialty chemical manufacturer INEOS Acetyls (INEOS) and Houston-based chemical company Sandpiper Chemicals (Sandpiper) have partnered to build one of the US’s first…

    • Gas
    • May 1, 2026
    Linde juggles resilient and cyclical end market trios

    By 37 min ago 2 min read They say things come in threes and that’s certainly the case for Linde in these strange times of industrial security and unpredictability. For…

    Have You Seen?

    Trump Says US to Help Ships Stranded in Strait of Hormuz as Tanker Hit by Projectiles

    • May 4, 2026
    Trump Says US to Help Ships Stranded in Strait of Hormuz as Tanker Hit by Projectiles

    Ukraine Hits Russian Black Sea Oil Port Four Times in One Week

    • May 4, 2026
    Ukraine Hits Russian Black Sea Oil Port Four Times in One Week

    Trump Says US Navy Acting ‘Like Pirates’ to Carry Out Naval Blockade of Iranian Ports

    • May 2, 2026
    Trump Says US Navy Acting ‘Like Pirates’ to Carry Out Naval Blockade of Iranian Ports

    Week in Africa: Mozambique 30 MW Solar Tender; SA 1.5 GW Hybrid Project; Guinea Mining Goes Solar and More…

    • May 2, 2026
    Week in Africa: Mozambique 30 MW Solar Tender; SA 1.5 GW Hybrid Project; Guinea Mining Goes Solar and More…

    SP Energy Networks and Buglife Transform Substation Grasslands Into Thriving Pollinator Habitats Through the Pollinator B-Lines Project

    • May 2, 2026
    SP Energy Networks and Buglife Transform Substation Grasslands Into Thriving Pollinator Habitats Through the Pollinator B-Lines Project

    With Costs Rising And Markets Tightening, America’s Farmers Turn To Solar To Protect Their Land And Livelihoods, SEIA Highlights

    • May 2, 2026
    With Costs Rising And Markets Tightening, America’s Farmers Turn To Solar To Protect Their Land And Livelihoods, SEIA Highlights

    Iberdrola Invests €14.5 Billion In Twelve Months, With Majority Directed To Networks In The UK And United States

    • May 2, 2026
    Iberdrola Invests €14.5 Billion In Twelve Months, With Majority Directed To Networks In The UK And United States

    Indore’s Jalud Solar Plant Marks New Renewable Finance Model with Citizen-Backed Green Bonds

    • May 2, 2026
    Indore’s Jalud Solar Plant Marks New Renewable Finance Model with Citizen-Backed Green Bonds

    Bonfiglioli India Signs 9 MWp Solar Power Deal with Cleantech Solar for Tamil Nadu Operations

    • May 2, 2026
    Bonfiglioli India Signs 9 MWp Solar Power Deal with Cleantech Solar for Tamil Nadu Operations

    PT PLN (Persero) Signs MoU with Villages Ministry to Expand Rural Electrification in Indonesia

    • May 2, 2026
    PT PLN (Persero) Signs MoU with Villages Ministry to Expand Rural Electrification in Indonesia