Rio Tinto is considering constructing an aluminium smelter in India powered by wind and solar energy.

The global aluminium manufacturer will assess the feasibility of an integrated 1 million tonnes/year low-carbon aluminium project.

It has signed a memorandum of understanding with AMG Metals & Materials to jointly assess the plan.

The proposed site will also produce 2 million tonnes/year of alumina.

Both the smelter and the alumina production will be powered by wind and solar energy, firmed by pumped hydro storage.

The development will comprise a study to evaluate a potential first phase 500,000 tonnes/year aluminium smelter in a favourable location.

Rio Tinto Aluminium Chief Executive Jérôme Pécresse said: “This study is an important step in our ambition to grow our global, low-carbon aluminium footprint while exploring new project delivery approaches and opportunities in emerging markets.

“Partnering with AMG Metals & Materials enables us to assess how we can develop low-cost responsible aluminium production powered by renewable energy.

“With its rapid economic growth and strategic position, India is a compelling location for this potential project and aligns with our long-term vision for a globally more diverse and resilient aluminium business.”

AMG Metals & Materials is promoted by the two founders of Greenko and AM Green.

As part of the study, AMG M&M will examine a firmed renewable energy solution with Greenko, while Rio Tinto will explore a commercial alumina solution.

The study will also assess smelting technology options to determine the most cost-effective solution for the project.

Group President of AMG Metals & Materials and Greenko, Mahesh Kolli, said: “Over the last few years, we have been able to deliver a multitude of decarbonisation solutions comprising electricity, molecules, chemicals and fuels. We are excited to expand that further to the materials space.

“This MOU could deliver much needed low-carbon metal at scale to propel decarbonisation initiatives in global supply chains across auto, construction, consumer packaging and many more segments.”