The generators started to light up, slowly. But instead of the usual blue hue it gradually turned to purple in the same rate which it grew in luminosity. Until it was a raging inferno of warp light that intermixed with the plasma within.

During this, Zuriel felt an opening, a rift further to the fore of the hulk. It closed almost as soon as it had opened, but something came through.
Was it a summoning? Or just a single effect? No matter what, it was no minor psychic power being unleashed and more importantly, there was another psyker on board.
He smiled, he suspected there probably was other on board the hulk, probably even psykers. Definitively psykers if one counted deamons. Albeit weak ones.
Now he knew, he cursed his wandering mind. He had let too much energy through, his ritual was disturbed. The generator hissed and spat, wailing faces emerged in the light and in the corners of vision and atop the machine, a fury and some disfigured dark fiend sat and licked their mouths when gazing at the dread magi busy with the ritual.

If it was more power the warp wanted, it would get it.
Zuriel cast his hands towards the ceiling and began shouting his incantations instead of simple murmuring. He allowed energy to pass through the veil at an increased rate and more than that, he enforced his will upon it even further.
The small deamons on top of the reactor wailed in terror, they had misjudged their planned meal and now fled. There was no time however as the dread magi violently gestured more energy into the star, energy began to visibly enter it and wind began to rush into the symbol. The deamons tried to clamber and flee, but was pulled in by the gale wind which violently yanked at the robes of the fallen tech priest. The pathetic deamons dematerialized and became energy to fuel the ritual.

As black tar like warp stuff dripped from his eyes, mouth and from under his robes he finished the incantation.
The generator was now running at more capacity than it was supposed to bear, light shone out from rips and tears in the reactor and the ship got a massive influx of raw electricity.
Lumo bars exploded, blue lightning arced here and there and warning sirens began to blare.

With a black smeared smile Zuriel exclaimed.
-"Excellent..."

The generator was going to explode... in time. For the moment it was producing enough power to probably run a couple of ships, armed only with lances in high combat pressure.
The only thing keeping them from rupturing instantly was the energies Zuriel put in place to sustain it. It would not last forever.

As he turned around and began to walk away with heavy steps, he couldn't help but fiddle with his fingers, holding his fingertips at the fingertips of his other hand and flexing.
He was on his way to the sensorium.