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Grid forming services are indeed paid for, according to this very same article:
Power plants "should have controlled voltage and, moreover, many of them were economically remunerated to do so. They did not absorb all the reactive power that was expected," Aagesen said.
I don't know if it's illegal, but it's commonplace in Spanish media now.
Why not: keep most weight off the arm by using a fan/compressor installed in the base and routing a conduit to the arm? Then it will only have to move the conduit, not the heavy motor.
How to make (Almost) Anything https://fabacademy.org/
You know the reason even if you're not aware of it. It's the same reason you are using capital I for Internet and lowercase i for intranet. Internet is a proper noun, like "Laura", because there's only one. Intranet is a common noun, like "silla", because there are many. You don't attach determinants to proper nouns in Spanish.