"Discount" - the renewable energy production impact on electricity priceUlm, Lauri; Koduvere, Hardi; Palu, Ivo2020 IEEE 61st International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON), Riga, Latvia, Nov. 5-7, 2020 : conference proceedings2020 / 6 p https://doi.org/10.1109/RTUCON51174.2020.9316611 Wind and Solar energy optimal integrationUlm, Lauri; Palu, Ivo; Mishra, Sambeet2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON), 7-9 October 2019 : conference proceedings2019 / 6 p https://doi.org/10.1109/RTUCON48111.2019.8982369