A fund owned by US private equity firm KKR & Co (<a href="https://www.nyse.com/quote/XNYS:KKR" target="_blank">NYSE:KKR</a>) has slightly increased the price in the tender offer for Portuguese renewable energy company Greenvolt - Energias Renovaveis SA (<a href="https://live.euronext.com/en/product/equities/ptgnv0am0001-xlis" target="_blank">ELI:GVOLT</a>) at the request of the Portuguese Securities Market Commission (CMVM), the target company announced in a recent filing.