Prof Mark Z. Jacobson of Stanford and his team disagree with you. Their modeling shows that with exactly zero improvements in storage or generation technology, we can both get all of our energy from renewables and save trillions annually by 2050.

I spoke to him about this on a podcast after writing a three-part analysis of his latest 143 country study.

https://medium.com/the-future-is-electric/massive-savings-of-money-and-co2-with-100-renewables-per-jacobson-fd0dbd15d32c?source=search_post---------3

https://medium.com/the-future-is-electric/storage-and-transmission-are-critical-to-a-renewable-world-but-cheap-per-jacobson-48f69e44935f?source=search_post---------2