A person's brain power is energy, but not provided by adding free energy.
A person's time is another form of energy.

In the future, things will be made, by a group of highly spiritual people. Where they imagine the objects, and all of its properties and bring it down from thought into plasma and further down into the physical.

In the here and now, plants grow slowly. It takes time and attention to grow them well, even if it is mostly automated. In the future, we will put more energy (not electricity) into growing the plants bigger and faster.

Even if i can just press the button on the CNC machine, and have it mill a part, it isn't all machine time. There is a lot of setup i have to do, to the block of metal, to setting the bits, to making sure everything is zeroed. On top of that, the g-code came out of my head, from the designs in my head.

In the future there will be a lot more automation, but there is still a human component.