The article here concludes with one year long cycle, of the 1MW battery. Not without exception; there's some draw down after dinner even on the charge up sunny

The article here concludes with one year long cycle, of the 1MW battery. Not without exception; there's some draw down after dinner even on the charge up sunny months. But a couple kWh against a 1MW pack is not super super notable. If it were cycle count alone degrading battery it'd still be an almost 5000 year battery (before becoming a 0.8MW battery). As others are pointing out, we have stabilized chemistries even more, so 5k cycles is pretty low at this point.