You can answer that question yourself. Just ask yourself "does this create new energy?" If the answer is "yes", then you've contradicted the law of conservation of energy.Well, the answer is clearly YES, while there is no contradiction with the law of conservation of energy .
In order to understand it, let's start with the following:
Quick Fact on How Tidal Energy Slows Earth Rotation
"During our research, we found an interesting detail surrounding tidal energy and the effect its generation could have on the Earth. Naturally the movement of tides causes a loss of mechanical energy that is associated with the Earth’s rotation. According to some studies, our planet has actually lost 17 percent of its rotational energy in the past 620 million years."
So, our scientists assume that the Tidal energy is taken from the rotational energy of the objects.
This is incorrect assumption.
I can prove that there could be a tidal energy without any need for any rotation.
Let's look at the Moon.
Its face is locked with the Earth.
Therefore, The tidal bulge doesn't cross its surface. It is a frozen Tidal Bulge. Hence, there is no new energy due to Tidal and therefore, the moon is a frozen object.
That is correct, as long as the object is only affected by one main orbital object.
However, let's assume that around the moon we will set four objects. Each object will be in the size of 1/1000 Moon mass and each one orbits at a different radius (R, 1.2R 1.4R, 1.6R) and different direction.
Let's assume that the Moon and all of those four objects have totally lost their rotational energy.
So, the question is:
Could it be that a tidal energy can be created at this moon although it has totally lost its rotational energy?
The answer should be -YES!!!
If you need an explanation - I will be happy to give.
So, we can see that without any need for rotation, tidal forces can set new energy.
That is exactly the case with our SMBH.
Let's assume that it doesn't rotate at all.
Let's even start with the assumption that it is a totally frozen object.
However, there are so many objects that are orbiting around that SMBH (Lets also assume that none has a rotation energy).
So, each object orbits at a different radius and even at a different orbital direction.
Therefore, Each one of them sets a small moving tidal bulge on the SMBH.
Each tidal bulge must set some small tidal energy as it cross the SMBH surface.
The Impact of millions tidal's bulge that are crossing that surface at different directions and amplitude must cause Ultra high tidal energy at the SMBH.
Therefore, even if the SMBH was frozen, after some time it Must be melted from the Ultra high energy of that tidal activity.
Therefore, Tidal energy is a NEW energy.
It is a direct outcome from gravity force.
So, as long as the gravity is there, and there are more than just one orbital object - we should get new tidal energy even if the rotation of all the objects is Zero!.