A decade or so behind, in the US.

If the US didn't block import of Chinese tech, we could have electrified a decade ago.

The tech available at the current moment, is even more capable of replacing petroleum based electricity.

But our government is banning Chinese tech to serve our outdated industries instead of importing it to serve the population.

As any wise country would do when faced with superior technology, we should import it with the condition of technology exchange. Chinese manufacturers should be training US workers and industrial ownership how to produce cheap, efficient, sodium batteries.

This benefits the populous immediately, and the industries are able to advance into the current century's tech.