US private equity company KKR & Co Inc (<a href="https://www.nyse.com/quote/XNYS:KKR" target="_blank">NYSE:KKR</a>) has ensured an 87.41% interest in German wind and solar parks operator Encavis AG (<a href="https://www.boerse-frankfurt.de/equity/encavis-ag" target="_blank">ETR:ECV</a>) through its voluntary public takeover offer, which expired on June 18.