The trick with the electric grid, is that you basically have network of leaky plumbing, with pipes of various sizes, with heterogenous congestions throughout.

The trick with the electric grid, is that you basically have network of leaky plumbing, with pipes of various sizes, with heterogenous congestions throughout. For example, the EIA estimates that the U.S. grids loose some 5% of energy in line losses between the generator(s) and the consumers. On top of that, that in states with high renewables, like Texas, you occasionally have grid congestion that causes wind turbines to curtail, or shut down, in order to balance the generation with the consumer's loads. A rough picture, seemingly updated every 5-15 minutes, of the broader 'nodes' in the U.S. grids can be seen at https://www.eia.gov/electricity/gridmonitor/dashboard/electric_overview/US48/US48 https://www.eia.gov/electricity/gridmonitor/dashboard/electr... Drill down deep enough into the data, and you will unearth the recent tracking of renewables in each of those nodes.