On: CO2 batteries that store grid energy take off globally

[jakewins]

> Energy Dome expects its LDES solution to be 30 percent cheaper than lithium-ion.

Grid scale lithium is dropping in cost about 10-20% per year, so with a construction time of 2 years per the article lithium will be cheaper by the time the next plant is completed

[nine_k → jakewins]

Li-ion and even LFP batteries degrade; given a daily discharge cycle, they'll be at 80% capacity in 3 years. Gas pumps and tanks won't lose any capacity.

[jakewins → nine_k]

These are LCOE numbers we are comparing, so that is factored in.

The fact that pumps, turbines, rotating generators don’t fail linearly doesn’t mean they are not subject to wear and eventual failure.

[westurner → nine_k]

Lithium burns toxic. Carbon based solid-state batteries that don't burn would be safe for buses.

There are a number of new methods for reconditioning lithium instead of recycling.

Biodegradable batteries would be great for many applications.

You can recycle batteries at big box stores; find the battery recycling box at Lowes and Home Depot in the US.

[westurner → jakewins]

LDES: Long-Duration Energy Storage

Grid energy storage: https://en.wikipedia.org/wiki/Grid_energy_storage

[westurner → westurner]

Metrics for LDES: Levelized Cost of Storage (LCOS), Gravimetric Energy Density, Volumetric Energy Density, Round-Trip Efficiency (RTE), Self-Discharge Rate, Cycle Life, Technical Readiness Level (TRL), Power-to-Energy Decoupling, Capital Expenditure (CAPEX), R&D CapEx, Operational Expenditure (OPEX), Charging Cost, Response Time, Depth of Discharge, Environmental & Social Governance (ESG) Impact