3 ms·
Seems like they'd do it on the edge of a natural cliff to avoid having to build a tower, or maintain an abandoned mineshaft. There aren't big cliffs everywhere,
by robbrown451 6y ago
Seems like they'd do it on the edge of a natural cliff to avoid having to build a tower, or maintain an abandoned mineshaft. There aren't big cliffs everywhere, obviously, but where there are, seems like an economical option.
- wedn3sday 6y agoCliffs tend to move a bit, falling slowly over time. There may be more stable cliffs to use, but the ones near where I grew up on the coast have a fairly steady fall rate (a new cm/year).
- imtringued 6y agoDrilling holes for energy storage isn't economical at all. Gravitricity is never going to work on a large scale.
- jeffbee 6y agoYeah, don't do the math on their outrageous claims. Excavating a hole in the ground that's 150m across and 1000m deep represents a monstrous up-front investment of energy. Not to mention the small matter of their 8-megaton piston costing half a billion dollars.