Agua Caliente, which will become the world’s largest operating solar PV facility, achieved commercial operation on 30 September.

MidAmerican Energy Holdings Company acquired a 49% interest from NRG Energy in January 2012. Terms were not disclosed.

First Solar designed and is building the project using thin-film solar modules. It will also operate and maintain the facility.

Agua Caliente is being financed with support from a loan guarantee from the US Energy Department Loans Programme Office.

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