Trust me when I say this…*
…but that ain’t going to cut it.
25 years ago, I posted this to the old CyclingForum.com:
'Top 10 things I’ve learned using a power meter
10) I shouldn’t lose weight
9) I need big gears
8) I need small gears
7) Strength is irrelevant
6) Don’t start too hard in TTs
5) Train less, rest more
4) Heat acclimatization is critical
3) Specificity
2) SPECIFICITY
- SPECIFICITY!"
With respect to the last three, the training plan you have proposed will make somebody good at going hard for 5 min at a time… but the OP’s goal is to increase his 30 min power.
*It’s just a saying!