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Energy storage: Difference between revisions
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{{dp | {{dp | ||
|iron.reserves | |iron.reserves | ||
| | |85 billion tonnes | ||
|Global iron reserves recoverable | |Global iron reserves - iron metal recoverable | ||
|Source: Global iron ore reserves 2010-2021 - Statista | |Source: Global iron ore reserves 2010-2021 - Statista | ||
}} | }} | ||
| Line 226: | Line 226: | ||
However, it is unknown how much of other metals might be needed to make the flywheel systems - for example the rare earth magnets involved in the motor/generator components. This page needs more research. | However, it is unknown how much of other metals might be needed to make the flywheel systems - for example the rare earth magnets involved in the motor/generator components. This page needs more research. | ||
How much [[energy]] would it take to refine all that steel? | |||
{{dp | |||
|energy.tfc | |||
|9938 Mtoe/year | |||
|Global total final energy consumption | |||
|Source: Key World Energy Statistics 2020 | |||
}} | |||
{{dp | |||
|steel.recycled.production.energy_by_mass | |||
|sqrt(1665*4170) watt hours per kg | |||
| | |||
|<cite>How much energy does it take (on average) to produce 1 kilogram of...</cite>https://www.lowtechmagazine.com/what-is-the-embodied-energy-of-materials.html | |||
}} | |||
{{dp | |||
|steel.new.production.energy_by_mass | |||
|sqrt(5550*13900) watt hours per kg | |||
| | |||
|<cite>How much energy does it take (on average) to produce 1 kilogram of...</cite>https://www.lowtechmagazine.com/what-is-the-embodied-energy-of-materials.html | |||
}} | |||
{{calc | |||
|steel.new.production.energy_by_mass * other_energy_storage_needed / flywheels.practical.energy_by_mass | |||
|months energy.tfc | |||
}} | |||
<!-- TODO: labor footprint - could work from (required * steel_industry.workers 40 hours/week / steel.production) idk --> | |||
Viability of flywheels in vehicles is unknown too. Flywheel-based vehicles have existed for over a century, but they don't store enough energy to last more than a kilometer. Perhaps vacuum-sealed electrical type of flywheel could store more energy {{x|this page needs to clarify this more in previous paragraphs}}, but would the bumps of the road cause energy losses too quickly? This page needs more research. | Viability of flywheels in vehicles is unknown too. Flywheel-based vehicles have existed for over a century, but they don't store enough energy to last more than a kilometer. Perhaps vacuum-sealed electrical type of flywheel could store more energy {{x|this page needs to clarify this more in previous paragraphs}}, but would the bumps of the road cause energy losses too quickly? This page needs more research. | ||
===Compressed air=== | <!-- TODO: ===Compressed air=== --> | ||
===Gravity blocks=== | <!-- TODO: ===Gravity blocks=== --> | ||