The Sun can, and does, deliver googols of TWh per year of power to the planet, yet the only way we can harness it 100% to our needs with current technology is to blanket the planet in solar cells and windmills taking up millions of sq km of land and sea. Nobody knows what the effect of that abstraction on the 'liveable' biosphere will be, never mind where all the materials to build the infrastructure will come from. What we do know is that we lose a lot of that land for food creation and other uses.
It's a pipe dream to make us feel all warm and cuddly that we are doing something. The spreadsheet numbers make it all seem ever so easy when the realty is very much different - and unknown. See politicians and their PPE 'degrees' or ask an engineer.
Wind and solar are not 'deemed to be intermittent, they are, by there very nature, intermittent. It is a physical fact. They might be part of a solution, but only a small part - currently 15% of our needs, https://gridwatch.co.uk/ as I write. Think of how many windmills and solar cells we have to achieve that, and we are at the forefront!
Nothing that we do is 'cost free' yet some of you make out that it is - it is NOT.