At its current price and stats, running a reactor on Verderium is significantly worse than running it on Blutonium.

Here are some quick calculations for the efficiency of the two possible fuel cycles, the first one burning Yellorium and Blutonium, the second one burning Yellorium and Verderium:

Yellorium - Blutonium:
Yellorium: 10490rf/mb * 1000 = 10,490,000rf + 1000mb cyanide
1000mb cyanide = 500mb Blutonium
Blutonium: 21618rf/mb * 500 = 10,809,000 rf

Total Power: 21,299,000rf

Yellorium - Verderium
Half of the Yellorium is used to produce Verderium:
Yellorium: 10490rf/mb * 500 = 5,245,000rf + 500mb CyaniTe
500mb Cyanite = 250mb Blutonium
250mb Blutonium + 500mb Yellorium = 500mb Verderium
Verderium: 1324rf/mb * 500 = 662,000

Total Power: 5,907,000rf

As you can see, for every bucket of Yellorium, using a Yellorium-Verderium Cycle gains you about half the power of just burning the Blutonium.

The second issue is, that because of its high burn rate, you need a massive Yellorium reactor to power even a small Verderium rector.
This is a setup I used to test the ratios:

And I ended up with a ratio of 200 Yellorium fuel Rods for every Verderium Fuel Rod.
This also means that the output of the Verderium Reactor is almost insignificant compared to the Yellorium Reactor.
The Yellorium Reactor produces 164,000 rf/t while the Verderium Reactor produces 5,270rf/t.

All that combined means, that Verderium currently has little use except for crafting Ianite.
Its energy efficiency is actually lower than simply burning Yellorium and dumping the Cyanite, and while you need a significantly smaller reactor because of its high burn rate, there is little advantage to that because you need a massive Yellorium reactor just to produce enough fuel to keep it running.
The only use I see currently is for short term, very high loads, in a scenario where you don't use some sort of battery as a buffer.

I have a few suggestions of how it could be rebalanced:

• You could reduce the cost / increase the yield from the fluidizer recipe (this would also make Ianite cheaper, so it might not be the best idea)
• You could reduce the burn rate while keeping its energy production

As a Separate Idea, its recipe could be changed to require Magentite instead of Blutonium, so instead of having to choose between Yellorium-Blutonium and Yellorium-Verderium cycles, you could instead build a Yellorium-Blutonium-Verderium Cycle.
It's burn rate or recipe cost would still need to be adjusted, so the efficiency of the cycle is better than Yellorium-Blutonium.