Doesn't matter your profession. To say the grid is more stable than a dedicated system of components is... very wrong. Please, do us all a favor and correct this deficiency.

"The grid is far more stable in voltage and frequency than an isolated system"

You show clear indication of not knowing anything about this subject 🙂

Using Ad hominems isn't the best argument. Do some research.

UPS systems are highly efficient when powering a designated load. The problem is the grid, it's far from a designated load. This is because the grid power is highly variable, and the UPS system must constantly adjust its output voltage and frequency to match it. This can result in additional losses and reduced efficiency. Additionally, the reactive power necessary to push out KVARs can also contribute to losses, especially when there are extra reactive elements in the mix.

Another challenge that can affect the efficiency of grid-connected UPS systems is the overall power demand on the grid. If the UPS system is connected to a heavily loaded grid, it may not be able to provide sufficient power to its designated load, which can result in decreased efficiency or even failure of the UPS system.

I'm not saying it's impossible, but with our current grid demands, it's unrealistic to think that we can power the world by solar and wind alone. That's what I'm saying.

I work in the power industry and gain nothing from lying, I just point out the energy hypocrisies when I see them. 🤷🏻‍♂️

Do you know the power loss of inverters that large of size? It would be completely unfeasible.

Grid Batteries provide 1KW for every 3KW stored, large in part because of the power loss of inverters.

Solar doesn't create enough KVARs to power a grid sustainably. And forget about when, you know, night time.

Wind farms produce enough KVARs, but highly variable amounts of wind makes for an unreliable power plant.

I would love for us to be able to do all this, but it is not realistic.

I believe the next generation will not have the same relationship with the music industry that we currently do.

The next program could be one that creates a song based on your current mood, job, task, etc. Maybe even use lyrics you write. That would be something.

Yeah maybe for things like phone batteries. Grid batteries are a whole different beast. A significant amount of KVARs is necessary to run a grid. Batteries don't scale 1:1 when comparing small Lithium batteries to ones that provide power to a grid.

In other words, the inverter necessary to store the energy from AC to DC uses power, and the same vice versa for supplying power. I'm not thinking of hydrogen, just the application of batteries on a grid.

Oh ok. I understand the AC generator part of things, but I am less sure about how this frequency works on a renewable energy microgrid. Does the variable frequency work in a way with the AC (capacitive/inductive) reactance equation? for say, you need a lower current so in an inductive circuit, higher frequency -> higher reactance -> higher impedance -> lower current.

This is not correct. You may be confusing frequency with voltage.

Where do you get this 90% efficiency from? I have heard the batteries used for the grid have been tested to produce 1KW for every 3KW stored

This will be needed for the lack of VARs that solar produces.