The CSIRO has predicted battery storage and hydrogen electrolyser technologies will continue to undergo stunning cost reductions as uptake increases, which can be accelerated by governments adopting more ambitious climate change policies.
The consultation draft for its latest GenCost assessment includes calculations and projections for the expected cost of a range of electricity generation technologies.
Under development since 2017, this liquid metal battery (LMB) is about to be let loose on the globe. Consisting of 3 liquid layers; 2 of molten metals and a middle layer of molten salts. The system is self-heating and insulated, but contains no combustible materials - so they can't burn. And they retain all of their charge capacity for at least 5000 cycles (think decades, not years). Modular, safer and cheaper than lithium-ion batteries. https://ambri.com/technology/