Code and plot error bounds timeseries data

So I'm plotting average kW per minute for two systems in blue and red, what would be the most concise way to plot the error bars over each line?

I also have a similar plot just calculating and plotting average kW per hour (so there's less noise) for two systems below

Could I just put the error bars for the hourly plot? I saw this post online for error bars and I thought it looked very clean but I had trouble following it since the error bounds are randomly generated and not calculated. https://brendanhasz.github.io/2019/07/03/matlab-uncertainty-viz

Any help would be much appreciated. Thanks!