I think the use of batteries installed for renewables when renewables are low is an underappreciated win so good to see that discussed. However, I don't unders

I think the use of batteries installed for renewables when renewables are low is an underappreciated win so good to see that discussed. However, I don't understand how letting the batteries charge from gas turbines can increase the gas burned by 10x compared with building enough turbines to do it without using the batteries. Surely it would just be the percentage round trip loss from storing it in the battery? So more like 10% extra than 10x more. The footnote #6 suggests the model might just be blindly running the gas turbines once batteries are at 70% rather than predicting based on weather that the batteries would empty so maybe that explains it?