Denham Capital Management LP has sold its entire interest in African renewable power company BioTherm Energy (Pty) Ltd. to U.K.-based Actis for an undisclosed sum.

The Boston, Mass.-based asset manager first invested in BioTherm over eight years ago, according to an Aug. 1 release.

BioTherm CEO Jasandra Nyker will assume the role of managing director in Denham Capital's international power group following the transaction. Nyker joined the company in 2011.

BioTherm owns more than 500 MW of projects, including 285 MW of wind and solar projects currently under construction representing more than $500 million in total enterprise value, the release said.