If the power source indicates a power of 10 kW, then it is able to provide this consumer power around the clock.
another thing is that in the case of a solar power plant, the round-the-clock operation is provided by short-lived and expensive batteries, therefore, I agree with the conclusion.
Yes, even if not provided. Even if you throw away all the batteries and try to start without ballast, 18k USD per load is somehow a little expensive.