The Google wind-solar data centre in Minnesota marks a major investment in renewable-powered infrastructure. Google has announced plans to build a new data centre in Pine Island, Minnesota, powered by wind, solar and multi-day battery storage.
Industry reports estimate the advanced facility will cost around $1 billion.
The project will combine 1.4 gigawatts of wind energy with 200 megawatts of solar power. To stabilise energy supply, Google will deploy a large iron-air battery developed by Form Energy.
Form Energy’s system can deliver 300 megawatts of steady power for up to 100 hours. The technology works by using oxygen to rust iron, releasing electrons in a controlled process that generates electricity.
This multi-day storage capability is designed to balance renewable output when wind speeds drop or sunlight decreases. As a result, the facility can maintain stable operations even during periods of fluctuating generation.
Google is developing the project alongside Xcel Energy. The companies created a specific contract structure to fund both the renewable generation and the 30-gigawatt-hour storage system.
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Importantly, Google stated that the agreement ensures local residents will not face higher electricity rates as a result of the project.
