Alterra Power has received an extended loan of $20.6m from affiliates of AMP Capital Investors, which will be used for the sponsor of the Flat Top Wind project located in Texas, US.

The expanded facility will be secured by and supported by cash flows from Alterra's projected 51% ownership stake in the Flat Top project, in addition to security and cash flow support the facility currently receives from Alterra's interests in the Toba Montrose, Jimmie Creek and Dokie projects.

The loan expansion will fund in conjunction with the completion of the Flat Top project financing, which Alterra expects to occur within the next few weeks. Alterra also expects to sell down a 49% interest in the project to a sponsor-partner.

The 200 MW Flat Top project, located in central Texas is contracted to sell the majority of its power under a 13-year power hedge with an affiliate of Citi.

The project has previously contracted with affiliates of Vestas-American Wind Technology, Inc. for turbine supply and maintenance and Blattner Energy, Inc. for construction services. The project is expected to achieve commercial operations in the first half of 2018.