I'm sorry but it's not that simple, as you can see clearly right now. Between Feb 9 and Feb 17th wind and solar energy delivery has been a very small fraction of capacity, less than 10%. To do baseload over a period of 8 days with that kind of resource would require roughly a 20x capacity overbuild and some kind of ridiculous battery. It's just not practical. Most realistic scenarios these days have lots of wind and solar and some overnight batteries, and rely on large mostly-idled capacity of gas to get through the black-swan events like this. Though obviously this approach has challenges as well.