I think the numbers you cite in [0] are in terms of total annual consumption.
PS Capacity factor is the ratio between capacity and production. Its probably the single most important factor when comparing different generation types. Its intentionally made confusing because NPPs have 90+ cap factor and renewables have about 10ish cap factor. This makes renewables seem competitive when they are not. That's why this is always presented in a confusing manor. PPS Its also the main reason power is so expensive in CA.
Demand is always instantaneous, and transmission lines from a generator need to be sized for the maximum instantaneous generation, so in terms of the size of (any kind of) generator it's the main thing you're interested in. Capacity factor brings in seasonal / daily output variation but that's a whole different thing.