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This is not true. Batteries are cheaper than peaker power plants using fossil fuel. They also allow the operator to fulfill market demands at the minute level
by outside2344 4mo ago
This is not true. Batteries are cheaper than peaker power plants using fossil fuel. They also allow the operator to fulfill market demands at the minute level versus the hours previously that it took to turn on a peaker plant.
This is being done at scale in California and Texas.
- mayama 4mo agoFore more than 2 hours capacity, batteries are expensive than most other and cost keeps increasing as more hours of capacity needed. Without gas or coal to burn when 1hr battery capacity runs out, battery storage is expensive.
- teamonkey 4mo agoAre you saying that the cost/MWh of battery storage goes up the more batteries are installed?
- mayama 4mo agoIt's simple power vs energy equations. Let's say you need to supply steady 1MW to town for 1hr, 2hr or 10hr. This needs total of 1MWh 2Mwh or 10Mwh respectively. Let's say battery would cost $200/kwh, then this would cost 200k, 400k or 2M resp. Battery storage is generally used for less than 2hr duration currently where they are price competitive. For the rest, either gas peaker, coal or hydro is used.
- whimsicalism 4mo agointeresting, so most power in Texas at night comes from batteries?