It’s become customary for those in the wind sector to see a surge of announced orders for Vestas turbines just prior to a quarter’s end. The end of 2020 was no different, but the final tally of result spells something of a warning. While Covid-19 will be blamed as the chief culprit, a significant downturn in an otherwise booming US market, could indicate a downwards shift in its leading market share. That’s not to say that the order book has been quiet. In the final two weeks of December, and since Rethink Energy release its latest orders update, the turbine maker announced new orders amounting to 1,964 MW, bringing its total haul for the year to 15,509 MW for the…