It is hard to operate renewables 24/7. At night and winter, you need a big array of generators and LED lights to shine on solars. Very inefficient.

Or for every solar you need a generator as a backup!

I asked whether solar/wind in combination with storage technologies, including but not limited to batteries, was able to reliably power a data center.

Really, no! You were going to dump peak solar/wimd energy into grid, and play stupid why "backward" public utilities need gas to do stabilisation!

Batteries