Comments on: Space-time wind speed forecasting for improved power system dispatch

First, I would like to acknowledge Zhu, Genton, Gu and Xie (ZGGX) for their substantial effort in jointly looking at the problems of improving short-term wind and corresponding power forecasts, and of using these forecasts as input to a relevant decision-making problem. It here involves the least-cost scheduling of conventional generators (economic dispatch) in a power system with substantial wind energy penetration. Forecasts are to be issued as a basis for decision support: it then appears sound to evaluate whether or not forecast improvements yield benefits to those employing these forecasts as input to decision-making.When it comes to renewable energy (more particularly wind power), forecasting and operational problems have been the focus of considerable research over the last 3 decades, from very fewworks in the 1980s to tens (if not hundreds) of manuscripts published every year nowadays. While the work of ZGGX is to be seen as a good reference presenting approaches to improved forecasting and integration of forecasts in operational problems, I believe some additional aspects may be discussed here in order to give a more complete picture. These aspects mainly relate to recent advances in renewable energy forecasting and to the use of probabilistic forecasts in operational problems.