Why do you place solar with peak-load technologies like gas? The point of peak load plants, and why they charge a premium, is that they can ramp up output when there is sudden demand. Solar does not have that ability, just like coal and wind.
Guessing because the peak-load for electricity tends to coincide with very hot days. So lots of demand for air conditioning but the solar panels are also generating maximum capacity.
The peak demand for electricity is around the afternoon of the day, and it gets higher the hotter the day is.
Which is exactly where solar is available – it can’t deal with 100% of the peak load, but it can take about three quarters of the market for peak load techniques.
