US analyst Wood Mackenzie is suggesting that 2020 will be the peak of wind energy additions for some time, as the Production Tax Credit is phased out leaving 14.6 GW for the year. The following year, 2021 will benefit from about 6.6 GW of capacity being too late for the end of year 2020 deadline, and that around 1.5 GW of wind capacity will actually be cancelled because of this. Those delayed projects will earn less than forecast and that will come out of the margin of the developers. This means that there is around 23GW of wind pipeline contracted for commercial operation by 2020, before a slow-down. The analyst firm puts wind additions at 14.6 GW for 2020, and…