Comment by decimalenough
2 days ago
It is, unfortunately, also an apples to oranges comparison. A coal plant actually generates 1GW, 24/7, while "a gigawatt's worth" of solar panels is theoretical peak capacity at noon on a cloudless day.
2 days ago
It is, unfortunately, also an apples to oranges comparison. A coal plant actually generates 1GW, 24/7, while "a gigawatt's worth" of solar panels is theoretical peak capacity at noon on a cloudless day.
> It is, unfortunately, also an apples to oranges comparison. A coal plant actually generates 1GW, 24/7, while "a gigawatt's worth" of solar panels is theoretical peak capacity at noon on a cloudless day.
That's incorrect. The capacity factor of a coal plant is between 50% and 60%. That's far away from 100% although better than solar (but not that much better) with capacity factors ranging from 15%-30% [https://en.wikipedia.org/wiki/Capacity_factor].
> A coal plant actually generates 1GW, 24/7, while "a gigawatt's worth" of solar panels is theoretical peak capacity at noon on a cloudless day.
This is called "capacity factor". Other things like maintenance also affect it, no power plant actually generates "24/7". A simple back-of-the-envelope estimate would put solar power's capacity factor at around 25%, so that "gigawatt's worth of solar panels" would generate an average of 250MW. Which is still an impressive number.