The alternator works, it works fine. But its small, and unfit for big industrial purposes. In the real world we typically buils bigger and bigger alternators. So instead of spamming alternators, I suggest adding another more efficient, much bigger, alternator.

This requires adding 3 blocks. A large coil block, crafted from 4 spools. A magnet block, which polarity can be changed with a wrench. It doesnt have to have additional functionality for this suggestion.

Finnaly a Alternator Bearing. The Bearing has 2 settings, Stationary and Rotating. You must link them by placing them on the same vertical without a diffrent Bearing interuppting.

Attached to rotating bearing you add magnets with opposite polarity on different sides. And attached to the Stationary you place coil blocks, which must surrond the magnets.

You must turn the Rotating bearing and can extract power from the Stationary bearing. The power and SU is calculated by the amount of magnets (in polar pairs) as well as the RPM.

Finnaly you may not be able to extract all of the power unless you have enough coils. Since this is more efficient than a normal alternator, you will often need more coils than magnets.