SteveKLord

The article is focusing on California as an example so that doesn’t seem entirely necessary but you could look to Norway to discover how they deal with this:

Vertical Panels are one solution as are Snow Repellent Panels and heated solar panels

Beyond simply the headline, the first two paragraphs from the article directly address this and site their source ( mentioned quoted above ) which further addresses the issue you are mentioning.

From the scientific journal directly sited in the article :

It’s true that solar energy is only produced when the sun is shining on solar panels. Likewise, wind energy is dependent on the ebb and flow of air currents. But the sheer volume of renewable energy being deployed, the ability to store that energy for longer, and to match demand with supply using software, creates a balanced grid.

According to BloombergNEF, lithium-ion battery cell densities have almost tripled, and costs have declined by almost 90% in the past decade – making it easier to smooth out the peaks and troughs of generation to meet the shifts and cycles of demand. Renewable energy sources themselves have dropped by as much as 82% over the same timeframe. Further improvements to both generation and storage will continue driving down costs, making renewable energy even more attractive to consumers.