Energy and Power Solutions is one of a growing breed of businesses that assist larger companies in cleantech and energy efficiency initiatives.

The Costa Mesa, Ariz. company can install green power generation systems, or advise its clients in how to do so. It also handles carbon rebates through its Rebate XChange.

Large corporations including Dean Foods, Miller Brewing, Tyco and UPS have signed up for its services, according to the company's release.

The $20 million first investment in the company was led by NGEN Partners and Robeco Groep, a fund in the Netherlands.