O que significa a expressão off the grid?

Here's an expression you might've never heard of: off the grid. The first time I came across it was when I was scrolling through Netflix and read a certain movie synopsis which by the way is the one right above in the screenshot.

You can see it mentions a father who raises his children off the grid followed by terms like anti-establishment or utopian views. These terms are directly associated with the expression because off the grid refers to a lifestyle that consists of not depending on public utilities, especially the supply of electricity. 

So if you have a system in your house that helps you function without the support of remote infrastructure and stand in opposition to the conventional social principles of society, maybe you are anti-establishment like the character in the movie mentioned before.

That's all for now. Take care!!!!