The cost of solar panels is plummeting, and this will flood the power grid with cheap electricity. But that’s just Act 1. We won’t stop building solar at the limits of the grid - we’ll build a lot more.
This post explains why we'll keep building more,
Where I live (Sweden) our grid has been essentially fossil-free since the early 90’s, thus we haven’t had the same need. Particularly since our electricity prices (excluding grid fees) already dip into the negatives in the summer, and solar is useless in the winter (<3hrs of light and snow cover).
Unfortunately though, recent politically motivated shutterings of nuclear plants during the 2010s combined with higher volatility in continental Europe has led to the volatility of our own electricity market skyrocketing, and more decentralized electricity production has led to huge increases in grid fees (state monopoly).
During a recent winter we had prices (when accounting for taxes and fees) in excess of 1$/kWh. This, in a country where almost all heating is electric, is disastrous. For context, we live in a small villa with a geothermal pump, and despite keeping indoor temps as low as 12°C at times we ended up with 1000s of USD equivalent in power bills for the winters 22/23 and 23/24.
Quite sad really.