svetz
Works in theory! Practice? That's something else
Ran across this DOE paper comparing different types of energy storage:
• lithium-ion (Li-ion) batteries
• lead-acid batteries
• redox flow batteries
• sodium-sulfur batteries
• sodium metal halide batteries
• zinc-hybrid cathode batteries
• pumped storage hydropower (PSH)
• flywheels
• compressed air energy storage (CAES)
• ultracapacitors
Here's a table of the costs, the 2025 projections are based on current rate of decline rather than any new technology breakthroughs:
None of them look like they're going to get the cost down to $10/kWh anytime soon, so probably some totally new technology is needed.
• lithium-ion (Li-ion) batteries
• lead-acid batteries
• redox flow batteries
• sodium-sulfur batteries
• sodium metal halide batteries
• zinc-hybrid cathode batteries
• pumped storage hydropower (PSH)
• flywheels
• compressed air energy storage (CAES)
• ultracapacitors
Here's a table of the costs, the 2025 projections are based on current rate of decline rather than any new technology breakthroughs:
None of them look like they're going to get the cost down to $10/kWh anytime soon, so probably some totally new technology is needed.