German wind and solar developer-operator Energiekontor AG (<a href="https://www.boerse-frankfurt.de/equity/energiekontor-ag" target="_blank">ETR:EKT</a>) on Monday reported a mixed performance in the first half of 2024, with an after-tax profit sinking by 43.8% year-on-year, but kept its toned-down guidance for the full year and maintained growth forecast for 2023-2028.