A grid battery has two numbers that are of interest One is how many Joules it can deliver in a second (Giga/Mega/Kilo/watts) One is how many Joules it can del

A grid battery has two numbers that are of interest One is how many Joules it can deliver in a second (Giga/Mega/Kilo/watts) One is how many Joules it can delivery completely (Giga/Mega/Kilo/watts) it can deliver If I'm running my 10kW shower for 5 minutes, I can do that from a battery that only has 1kWh of storage, but I can't run it from a battery that can only deliver 1kW. This is all high-school level science, and it's an indictment on the lack of diversity in news reporting how badly they get it wrong