LISBON, Feb 1 (Reuters) - Renewable utilities supplied 88% of Portugal's electricity consumption in January, as heavy rains coupled with good wind and solar conditions allowed to sharply reduce the use of gas-fired power plants, grid operator REN said on Wednesday. The country aims to generate 80% of its annual electricity usage from renewable sources by 2026, up from around 60% in 2022, which was already one of the highest ratios in Europe. See here for a complete list of exchanges and delays