4 ms·
Would putting a vertical axis flywheel in a deep basement containment be a good start? Cap with rebar & concrete, or steel like a liquid storage tank - depend
by dmckeon 8y ago
Would putting a vertical axis flywheel in a deep basement containment be a good start? Cap with rebar & concrete,
or steel like a liquid storage tank - depends on wheel material and failure modes?
- CydeWeys 8y agoBy the time you're considering building a concrete bunker, it's clearly better to give up on flywheels and stick with chemical batteries. A bunker will cost a lot more to construct than a few Powerwalls.
- dangrossman 8y agoJust one Powerwall costs more than the cost of burying an underground gas tank, and you'd need 10 of them to store enough power to charge one Tesla 100 kWh car. That's $35,000 in batteries alone without the cost of installing them. $35,000 is much more than it would cost to put down an underground concrete foundation to drop a flywheel into. House-size basement foundations can cost 1/8th that.
- cjsawyer 8y agoAlso consider the relative availability of battery chemicals vs steel and concrete. We already have the infrastructure set up to efficiently produce huge quantities of those building materials.