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You are pricing battery storage in kWh but storage is measured in kW. $50-100 kW is "normal" for installed grid scale battery. There is no realistic way to GEN
by shiftpgdn 4y ago
You are pricing battery storage in kWh but storage is measured in kW. $50-100 kW is "normal" for installed grid scale battery.
There is no realistic way to GENERALLY determine the price of the kWh coming out of a grid scale battery due to the large number of variables, such as battery lifepan, wholesale production rates, land and permitting cost, etc.
- ncmncm 4y agoNot true. A battery stores kWh. kW is practically unlimited for utility-scale batteries. By contrast, many other storage methods have limits on kW, but may offer practically unlimited kWh. Some limit charging kW, but may be discharged at a higher rate. Short-term storage wants high charge and discharge rate, efficiency and durability. Longer-term storage mainly favors cheap capacity, and tolerates low charging rate and low efficiency.
- bagels 4y agokWh is a unit of energy measurement kW is a unit of power measurement Capacitors are capable of delivering high levels of power but have relatively small energy storage capacity compared to batteries. Grid scale batteries need to be sized in terms of both charge/discharge rates (kW/MW) and energy storage (kWh/MWh)
- nmeagent 4y agoStorage is measured in units of energy, i.e. something akin to Joules. Watts (and thus kW) are a measure of power, i.e. energy rate: 1 W is 1 Joule per second. kWh is a measure of energy (a kW for an hour) and is directly convertible to Joules. You could of course price based on energy discharge rate in kW, but not that alone...