When thinking energy storage, most people will think of battery. However, in some workshop, you can find 'air power tools' powered by compressed air.
It make ones wonder what are other means of storing energy.
It turns out, there are a whole range of options to store energy other than battery or fuel. Some examples:
- lifting tons of concrete e.g. Energy Vault,
- melting salt (how does it store the energy?),
- spinning flywheel
- pumping water into dam
- and many more ways
| Storage | Example |
|---|---|
| Chemical | battery, fossil fuel, etc. |
| Gravity | lake/dam, concrete blocks |
| Compressed air | |
| Molten Salt | |
| Flywheel | http://large.stanford.edu/courses/2020/ph240/barnett2/ |
A more extensive list is wikipedia.
To be looked around the internet. Some that are of interests:
- Electricity from the grid
- Electricity from battery
- Gas
- Fuel/petrol
- Monitor, laptop, fridge, raspberrypi, smartphone, ...
We pull up a weight and a mechanism will convert it to light throughout the night.
If so, is it enough to power electronics that goes with people? like smartphone? or hearing aid.
Good for charging while hiking, for example.
Currently, energy distribution mainly means electrical grid, at least from my/consumer perspective. Is this conversion always efficient?
You know, that particle that always escape or captured. Is it possible for pure photon. Sounds non-sensical.