It’s taken 40 years for lithium-ion battery technology to evolve into its current state, powering everything from the smallest electronic devices to Tesla’s 100MW battery farm in southern Australia. But utility-scale Li-ion batteries are rare. 99% of grid storage today is pumped hydro, a solution that will always be limited by geographical and environmental constraints. For utility-scale chemical batteries to take off they need a new technology, … [Read more...]
Utilities are starting to invest in big batteries instead of building new power plants
There has been a dramatic drop in battery costs in recent years. Jeremiah Johnson and Joseph F. DeCarolis, of North Carolina State University, say if this continues grid-scale batteries could supplant the usual solutions to peak electricity demand: gas power plants and transmission lines. Inevitably, this will depend on the future price of gas, and the changing policy environment. But one thing is for sure: utilities don’t want to invest in peak … [Read more...]
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