TotalEnergies (global integrated energy company) has taken the Final Investment Decision for the Mirny onshore wind and Battery Energy Storage System project in Kazakhstan, committing USD 1.2 billion to what the company describes as one of the country's largest renewable energy initiatives to date.

The project, located in the southeast of Kazakhstan, combines 1 gigawatt of wind capacity with a 600 megawatt-hour battery storage system and is expected to reach full operational capacity in 2029.

Project Scale and Structure

The Mirny wind farm will consist of 150 onshore turbines delivering a combined capacity of 1 gigawatt. Alongside the wind generation infrastructure, the project incorporates a 600 megawatt-hour battery energy storage system supplied by Saft, a wholly owned affiliate of TotalEnergies.

The company said the inclusion of the storage facility is intended to enhance grid stability and represents what it characterized as a significant upgrade to Kazakhstan's energy infrastructure.

It will also mark the country's first grid-scale battery system. Over a 25-year operational lifespan, the Mirny project is projected to generate 100 terawatt-hours of renewable electricity, sufficient to supply approximately 1 million people in Kazakhstan.

The electricity produced will be sold to the Government of Kazakhstan under a 25-year Power Purchase Agreement that was originally signed in 2023. TotalEnergies holds a 60 percent stake in the Mirny project.

The remaining equity is split between two Kazakhstani partners, Samruk Energy and KazMunayGas, each holding a 20 percent share.

Financing Consortium

Alongside the Final Investment Decision, TotalEnergies and its partners signed a Common Terms Agreement with an international lending consortium to secure the financing framework for the project. Approximately 75 percent of the USD 1.2 billion total investment is expected to come from external financing.

The lending consortium includes the European Bank for Reconstruction and Development, Proparco, the Development Bank of Kazakhstan, DEG (Finance Company), Société Générale (European financial services group), QNB Group (financial institution), China Construction Bank, and Standard Chartered (banking and financial services group).

The breadth of the consortium reflects participation from both multilateral development finance institutions and commercial lenders across multiple geographies.

Kazakhstan's Renewable Energy Ambitions

Olivier Jouny, Senior Vice President of Renewables at TotalEnergies, framed the Mirny project within Kazakhstan's broader national energy policy goals. "We are delighted to launch one of Kazakhstan's largest renewable energy initiatives to date, thereby contributing to the country's target of increasing the share of renewables in electricity generation to 15% by 2030," Jouny said.

"We look forward to advancing construction of the Mirny project alongside our partners and in cooperation with the Kazakhstani authorities." The Kazakhstani government has set a target of achieving net zero emissions by 2060, and TotalEnergies stated that the Mirny project is designed to directly support that long-term ambition. The company has framed the project as a technological benchmark for the country's energy sector.

Part of a Broader Asian Renewables Push

Jouny also connected the Mirny project to TotalEnergies' wider regional strategy. The company is building a 9-gigawatt renewables portfolio in Asia through a 50/50 joint venture with Masdar, spanning nine countries, including Kazakhstan.

The Mirny 1 gigawatt wind farm is intended to contribute directly to that combined portfolio. TotalEnergies reported that it had more than 34 gigawatts of gross renewable power generation capacity at the start of 2026, and the company has set a target of producing over 100 terawatt-hours of net electricity annually by 2030.

TotalEnergies' Existing Footprint in Kazakhstan

TotalEnergies has maintained a presence in Kazakhstan since 1993. The company currently holds a 16.81 percent shareholding in the North Caspian Project, one of the country's major hydrocarbon developments. On the renewable side, TotalEnergies already operates 128 megawatts of solar generation assets in Kazakhstan.

The Mirny project represents a substantial expansion of that renewable footprint and will be the company's largest single clean energy asset in the country. The company described its approach in Kazakhstan as a multi-energy strategy that integrates hydrocarbon production with renewable energy development, positioning the Mirny project as consistent with that framework.

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