4 ms·
Surprisingly when things become heavy enough the ground by itself isn't enough anymore and you start needing supports for heavy things
by acrid_acre 3y ago
Surprisingly when things become heavy enough the ground by itself isn't enough anymore and you start needing supports for heavy things
- Gravityloss 3y agoInteresting thought. If these are super cheap, at some point the foundations or the land they are on becomes a significant cost issue. Say for example if a 12 m long and 2.3 m wide standard 40 ft container weighs 16,000 kg (16 t), how many can you pile on an old parking lot? I would assume the cost of the batteries (and then after that things like inverters) is still so high everything else is in the noise.
- tomek_ycomb 3y agoRandomly grabbed some soil strength (it varies alot), but a reasonable number seems 3000 pounds per square foot. That puts your number at. (3k4010) / (16k*2.2) (estimating width of the 40 foot at 10 feet), Uhh.. 34 containers. I think that's enough. In reality you would be able to drive helicoil foundations or any number of things to change the dynamic. I agree the foundations would be secondary to the rest of the system cost in general though