Analysis of possibilities to improve quality of spatial wind speed forecasts for efficient forecasting of electric energy production in onshore wind farms in PolandPaweł Piotrowski, Dariusz Baczyński, Marcin Kopyt and Karolina SzafranekE3S Web Conf., 84 (2019) 01001DOI: https://doi.org/10.1051/e3sconf/20198401001