[beat]

Careful how you phrase that. There are lots of storage options that are viable - batteries, gravity, thermal, compressed air, etc - but none that have become major commercial products or installed on the grid at scale. Yet.

But there is no reason it should be impossible, or even outrageously difficult, to store enough offline energy to make a solar/wind grid viable. And, given modern software's ability to manage an automated pricing market from diverse sources, there's tremendous pressure to do just that.

This is why we're seeing massive active investment in storage products - not just Tesla, but many competitors. And not government funding, but rather venture capital. This is a technically feasible market worth hundreds of billions to whoever gets there firstest with mostest.

So I'm not the least bit concerned. Storage options will happen, and they will happen very quickly.