Electric Power Monthly!
July edition, for capacity changes and generation May 2020. In Electric Power Monthly time, the impact of the virus is being fully felt.
Coal capacity reduced in May 2020, by 1,294.1MW to at 224,525.1MW. Forecast capacity reductions continue. Last month, the 12 month net capacity change forecast was -6,755.4MW. This month the forecast decreased by 297.8MW to -5,759.1MW.
Coal's rolling 12 month share dropped another 0.50% to 20.44%, a drop of 5.85% from 12 months ago. Coal was 48.21% of generation in 2008. May 2020 generation was 46.5TWh compared to 71.9TWh in 2019, and rolling 12 month generation falling to 833.5TWh compared to 1,100.5TWh a year ago.
Nuclear capacity was unchanged in May 2020, so remained at 97,102.9MW. Planned capacity reductions were also unchanged at -1,619.3MW.
Nuclear generation was slightly down in May 2020 (64.3TWh v 67.1TWh), with rolling generation at 805.9TWh compared with 805.4TWh to May 2019.
Coal generation is normally 2nd lowest in May and it was the 2nd lowest recorded at 46.5TWh.
Rolling 12 month coal generation has fallen 267TWh in 12 months. The difference between coal and nuclear 12 month rolling generation is now only 27.7TWh. Nuclear generation has now exceeded coal generation for 6 months in a row. With continuing capacity reductions, the current trend has coal generation being lower than nuclear generation by July 2020.
That's because coal generation capacity factors are continuing to fall.
May capacity factors have normally been among the lowest for coal, and had declined from 47.9% in 2017 to 41.7% in 2019, but, May 2020 was 28.4%. While it was very likely affected by the virus lockdowns, nuclear generation didn't drop much (89.1% v 90.8%) and CCGT generation was only slightly down on 2019 (48.2% v 48.6%), the vast majority of the reduction seems attributable to the marginalization of coal generation in the face of cheap natural gas.
Coal:
Capacity (MW):
Period | Prior | Change | New | Change |
---|
Month | 225,819.2 | -1,294.1 | 224,525.1 | -0.57% |
YTD | 229,241.4 | -4,716.3 | 224,525.1 | -2.06% |
Rolling | 236,095.5 | -11,570.4 | 224,525.1 | -4.90% |
Plan +12mo | -6,755.4 | -297.8 | -5,759.1 | . |
Capacity Factor (MW):
Value | Prior | Change | New | Change |
---|
Month Capacity | 236,202.8 | -11,677.7 | 224,525.1 | -4.94% |
Month Factor | 41.7% | -13.3% | 28.4% | -31.89% |
Rolling 12mo Factor | 52.3% | -10.6% | 41.7% | -20.31% |
Generation (GWh):
Year | Month | YTD | Rolling | Month % | YTD% | Rolling |
---|
2019 | 71,883 | 391,519 | 1,100,473 | 21.66% | 23.99% | 26.29% |
2020 | 46,488 | 258,891 | 833,521 | 15.11% | 16.63% | 20.44% |
Difference | -25,395 | -132,628 | -266,952 | -6.55% | -7.36% | -5.85% |
Nuclear:
Capacity (MW):
Period | Prior | Change | New | Change |
---|
Month | 97,102.9 | 0.0 | 97,102.9 | 0.00% |
YTD | 98,070.2 | -967.3 | 97,102.9 | -0.99% |
Rolling | 98,873.0 | -1,770.1 | 97,102.9 | -1.79% |
Plan +12mo | -1,619.3 | 0.0 | -1,619.3 | . |
Capacity Factor (MW):
Value | Prior | Change | New | Change |
---|
Month Capacity | 98,908.9 | -1,806.0 | 97,102.9 | -1.83% |
Month Factor | 90.8% | -1.7% | 89.1% | -1.87% |
Rolling 12mo Factor | 92.4% | 0.9% | 93.3% | 1.01% |
Generation (GWh):
Year | Month | YTD | Rolling | Month % | YTD% | Rolling |
---|
2019 | 67,124 | 331,200 | 805,359 | 20.22% | 20.30% | 19.24% |
2020 | 64,338 | 327,660 | 805,869 | 20.91% | 21.05% | 19.76% |
Difference | -2,786 | -3,540 | 510 | 0.69% | 0.75% | 0.52% |