5 ms·
Batteries easily last a decade now. LFP chemistries easily will do 1000+ cycles. Also 24 hours is a huge amount - you actually don't need more than that, especi
by N1H1L 5y ago
Batteries easily last a decade now. LFP chemistries easily will do 1000+ cycles. Also 24 hours is a huge amount - you actually don't need more than that, especially if you have offshore wind in your mix, as they blow pretty much all the time.
- liketochill 5y ago1000 cycles / 365 days =~ 3 years, not 10? I heard a solar project is over-provisioning the battery and planning to replace it every 5 years as they must be able to deliver some amount of MWh 4 years down the road.
- N1H1L 5y agoYes - but you are never really cycling all the way. Draining them down completely and filling them all the way up. Rather they are often smoothing out power supply.
- liketochill 5y agoSo a cycle is a full discharge and if you get at least 1000 cycles but never go below 10% discharge you would get 10000 10% discharge/charge cycles from a battery?
- N1H1L 5y agoYes. As Apple puts it here[0]: > You complete one charge cycle when you’ve used (discharged) an amount that equals 100% of your battery’s capacity — but not necessarily all from one charge. For instance, you might use 75% of your battery’s capacity one day, then recharge it fully overnight. If you use 25% the next day, you will have discharged a total of 100%, and the two days will add up to one charge cycle. References: [0] https://www.apple.com/batteries/why-lithium-ion/ https://www.apple.com/batteries/why-lithium-ion/
- Aerroon 5y agoAnd when a storm hits? No electricity?
- N1H1L 5y agoThat happens today only, with conventional power sources. Snowstorms routinely knock out power infrastructure