The move is aimed at bringing SunPower closer to its customers, says Tom Werner, the company’s chief executive.

Melbourne-based Diamond Energy currently operates two biogas plants and develops wind and solar projects.

It also sells energy that it acquires via power-purchase agreements with third parties to residential and commercial customers.

“We look forward to this new venture and expect it to serve as a model for SunPower's continuing evolution into a complete energy solutions provider," says Werner in a statement.

SunPower,