Capacity factor. It is used in determining the average time online a plant operates. Nuclear plants run typically about 97 to 98% capacity factors. Most conventional plants like coal, gas turbine, etc., have capacity factors between 80 and 90%. Solar typically runs around 25% capacity factor.
Even the most basic source could have left you better informed.
en.wikipedia.org
You showed me a hyper-theoretical that bears no semblance to reality.
Converting salt water to fresh isn't a case of just boiling it. Normally, a saltwater to freshwater plant goes through a number of steps. First, you filter out all the sediments and other solids in the water. This typically uses a combination of settling tanks and sand / DE filtration. After that, you have to send the water through an RO system to remove the dissolved solids that filtration can't remove. The process isn't nearly as energy intensive as it is complex and requiring massive filtration systems.
Your continued flippant and vague answers to how things works shows you have no idea how any of this stuff works in any sort of detail.
That capacity factor is why you need, roughly, 5 KW of installed solar capacity to get 1 KWD (kilowatt day) of power, along with 3+ KWH of installed battery capacity. The combination drives the cost of a solar plant to astronomical levels that cannot be afforded.