Viewing a single comment thread. View all comments

PorkyPigDid911 OP t1_j6eirt3 wrote

Flow batteries are about $800-1000/kWh deployed - whereas lithium ion is about $400-500/kWh (utility scale installs). BUUUT...lithium needs to be repowered at about 1/3 of its original cost every ten'ish years, while flows need a much lesser repowering about 1/20th of the cost every twenty years.

As well, power grid assets are expected to have 50 year lifetimes - so - taking 10-20-30 years to be competitive is actually quite appropriate.