Bike Workout - "Short" FTP Intervals

This was another FTP-type workout, where the plan was to do intervals at or near my functional threshold power. However, today's workout was planned to be a little easier in that the FTP intervals were only 12 minutes long instead of 15 minutes, like Tuesday's workout. In addition, I overslept a bit, and had to cut the workout to 45 minutes. However, according to Endurance Nation, as long as I get the main set in (in this case, the 2x12' at FTP), I should be okay.

Workout Summary

Entire workout (204 watts):
 Duration:   45:04
 Work:       552 kJ
 TSS:        60.9 (intensity factor 0.901)
 Norm Power: 234
 VI:         1.15

FTP Interval #1 (274 Watts):
 Duration:   12:00
 Work:       197 kJ
 TSS:        22.3 (intensity factor 1.055)
 Norm Power: 274
 VI:         1

FTP Interval #2 (267 Watts):
 Duration:   12:01
 Work:       192 kJ
 TSS:        21.1 (intensity factor 1.027)
 Norm Power: 267
 VI:         1