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A comment on More Solar and Battery Storage Added to TX Grid Than Other Power Src Last Year. Parent comment

Re:More Solar and Battery Storage Added to TX Grid Than Othe... by hn_throwaway_99 on Saturday February 15, 2025 @03:11PM (#43061860)
It's a good question, but when discussing grid energy storage, there are 2 important things:

1. How much power output the storage can replace (i.e. discharge capacity) . The appropriate unit for that is watts (or megawatts, etc.)

2. How long can it do it for (i.e storage capacity) - as you point out, the appropriate metric for that is megawatt-hours.

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Re:More Solar and Battery Storage Added to TX Grid Than Othe... by zidel on Saturday February 15, 2025 @03:26PM (#43061990)
And to add to that, power is almost always the number that is reported/counted so watts is usually correct. That might seem strange since batteries store energy, but in terms of the service they provide to the grid power in/out is more important than storage at least for now.

Edit: 1-2 hours of storage seem to be the current state in Texas at the moment: https://www.renewableenergyworld.com/energy-storage/texas-co...

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Re:More Solar and Battery Storage Added to TX Grid Than Othe... by timerol on Saturday February 15, 2025 @03:41PM (#43062124)
It's worth noting that for 2, projects are generally quoted in just "hours", with the storage capacity in MWh implied
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