The project is expected to generate $20 million (£15m) in local economic investment and create more than 500 jobs during construction.
The deal brings Microsoft’s total renewable energy portfolio to more than 1.3GW.
General Manager of Energy and Sustainability Brian Janous said: “When we invest in renewable energy, we are investing in the future – enabling sustainable growth of our business, of the clean energy sector and the local communities that benefit economically from Microsoft’s commitment to sustainability.
“Our work with companies like Invenergy is an integral step toward our goal of enabling a clean energy future for everyone.”
The solar project is scheduled to begin commercial operation later this year.