You also need to consider the capacity factor, which tops out around 30-35% for wind and 20-25% for solar. So with 300 MW wind and 50 MW solar nameplate capacity the best we can expect is average output of around 120 MW.

Nuclear has a capacity factor of >90% since it only ever stops for maintenance, so a single 1.1 GW reactor (eg an AP1000) is like 8x this plant.

But at least in the US we have plenty of otherwise useless windy land and it's incredibly expensive to build a nuclear plant, so maybe this is the way to go.