You can remove your downvote now.
“The generation data for wind, rooftop and utility solar data was rescaled to supply ~60%, 25% and 20% of demand respectively over the year. For example, over the last year utility solar generation has met 5% of demand. The target for utility solar was 20%, so I rescaled the last 7 days of utility solar data by 4x (ie, 20% divided by 5%).”
"Wind and Solar are fine as long as they're only X% of the grid, but you'd need <silly amount> of storage for lulls in wind and sun once they get close to 100%" is the question it's answering.
Rescaling existing production is exactly how to demonstrate whether the peaks and lulls of solar and wind would sufficiently line up in a 100% solar/wind/pumped storage/hydrogen storage grid. Real data > hypothesized data.
What's absurd is the fossil fuel/nuclear lobby's "for public consumption" models that assume that the sun and wind both go out for 4 weeks at a time every winter and that the only way to store energy is with lithium batteries from 2012.
If it's windy renewables skeptics will tell you how little power is being generated right now by solar panels.
If it's sunny renewables skeptics will tell you how little power is generated by wind turbines right now.
This is partly because skeptics are gonna skeptic but also it's also because sun and wind anticorrelate way more than most people think, reducing storage requirements down to quite reasonable levels (such that pumped storage/hydrogen can economically satisfy most grids).