Integrating Southwest Power Pool Wind to Southeast Electricity ...

SPP Individual Unit Capacity Factors
Individual SPP CC generating unit capacity factors are shown in Figure 6-7. This shows a
significant decrease in capacity factors across most units for scenarios 2 and 3 vs. scenario 1 and
the low wind case. It can also be seen that some units are affected more than others – particularly
those units with 35% or greater capacity factors in Scenario 1 – these can be significantly
reduced.
Figure 6-8 shows the individual SPP coal unit capacity factors. As before, these do not show as
wide a range as CC units. However, lower (likely less efficient) capacity factor units from
scenario 1 can be seen to show some variability in their capacity factor across scenarios. It can be
seen here that coal is going to be most affected in SPP by the balancing strategy, whereas CCs
are affected elsewhere in the SERC regions. This is based on the modeling assumptions in terms
of fuel price and plant mix in different regions.
Figure 6-7: Individual CC capacity factors for SPP
A-5