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https://www.seia.org/sites/default/files/EIA-860.pdf
It would be good to see the actual data.
The article doesn’t make this clear so I am assuming those numbers represent GWh of storage. To put this in context Bath County is a reservoir that has 24GWh of storage. https://en.m.wikipedia.org/wiki/Bath_County_Pumped_Storage_S...
As often the case, reporters can't tell power apart from energy, happily confusing Watts and Watt-hours/Joules.
Why do people think that battery storage doesn't have a power specification? To the point that they will incorrectly declare others to now know what they are talking about, when in fact the accuser doesn't know?
The article doesn’t make this clear so I am assuming those numbers represent GWh of storage. To put this in context Bath County is a reservoir that has 24GWh of storage. https://en.m.wikipedia.org/wiki/Bath_County_Pumped_Storage_S...
Context for your context: Bath County resevoir is descrbed as "largest battery in the world", and cost the equivilent of 4 billion dollars (in 2021 $), occupies 265 acres of land, and has a capacity of around 14,000,000 m3 of water. I'm curious to see how the costs compare. My understanding is pumped hydro storage gets cheaper at scale. If my math is correct, 24GWH of storage at $4 billion dollars^ is $167 per kilowa…
10-20% YoY drop in manufacturing cowts is pretty likely, although demand will keep up with production and lithium extraction capacity so this might just turn into profit in the short term.
Sodium ion is presently scaling, which should remove most of this raw material limitation by late 2020s. Additionally the lower volumetric capacity, higher coulpmbic efficiency and higher thermal stability should reduce cooling and fire control.
TL;DR Some/most people expect it to drop each year similar to what solar did. I expect prices to be stable for 2-4 years while anyone with a lithium mine or existing production builds a small ocean of cash to swim in and then crash abruptly to <$80/kWh
The article doesn’t make this clear so I am assuming those numbers represent GWh of storage. To put this in context Bath County is a reservoir that has 24GWh of storage. https://en.m.wikipedia.org/wiki/Bath_County_Pumped_Storage_S...
Grid resources' most salient aspect is their power rating. For lithium ion batteries, there is typically four hours of duration when discharging at maximum capacity, though sometimes it's as low as one to two hours. And for the earliest lithium ion battery that were used for frequency regulation, it was as low as 15-30 minutes of duration. But today, it's usually safe to multiply the GW by four to get GWh for grid batteries, if one cares about the GWh more than GW for some reason.
As often the case, reporters can't tell power apart from energy, happily confusing Watts and Watt-hours/Joules.
The EIA understands energy and power, the unit names used for energy and power, and is using them correctly in this short article. As much as I hate it when they use terms like "billion kWh" in some of their reports, it is their prerogative and a correct use of terms. Why do people think that battery storage doesn't have a power specification? To the point that they will incorrectly declare others to now know what th…
The very first chart in the article is titled "U.S. Battery Storage Capacity (2015-2025)", but the vertical axis is labelled "gigawatts".
Storage capacity is not measured in gigawatts.
Edit: yes, batteries also have a power delivery rating, but that is not what is implied by "storage capacity".
Earlier quoted context omitted.
Context for your context: Bath County resevoir is descrbed as "largest battery in the world", and cost the equivilent of 4 billion dollars (in 2021 $), occupies 265 acres of land, and has a capacity of around 14,000,000 m3 of water. I'm curious to see how the costs compare. My understanding is pumped hydro storage gets cheaper at scale. If my math is correct, 24GWH of storage at $4 billion dollars^ is $167 per kilowa…
Pumped hydro can amortize over 50-100 years. In a true renewable grid, you will get over 50,000 cycles from the same dam (with some turbine replacements). EDIT: numbers..
Earlier quoted context omitted.
The EIA understands energy and power, the unit names used for energy and power, and is using them correctly in this short article. As much as I hate it when they use terms like "billion kWh" in some of their reports, it is their prerogative and a correct use of terms. Why do people think that battery storage doesn't have a power specification? To the point that they will incorrectly declare others to now know what th…
What are you talking about? The very first chart in the article is titled "U.S. Battery Storage Capacity (2015-2025)", but the vertical axis is labelled "gigawatts". Storage capacity is not measured in gigawatts. Edit: yes, batteries also have a power delivery rating, but that is not what is implied by "storage capacity".
Grid assets are measured by power, and power is a key specification of storage capacity.
Edit in response to your edit: the EIA, and in fact all the people who run grids and the grid storage, refer to capacity in terms of power, and when talking about "storage capacity" on the grid continues to use power because it would be nonsensical and silly to switch to a not-so-useful energy unit rather than power unit when power is the key metric for grids.
Earlier quoted context omitted.
The EIA understands energy and power, the unit names used for energy and power, and is using them correctly in this short article. As much as I hate it when they use terms like "billion kWh" in some of their reports, it is their prerogative and a correct use of terms. Why do people think that battery storage doesn't have a power specification? To the point that they will incorrectly declare others to now know what th…
What are you talking about? The very first chart in the article is titled "U.S. Battery Storage Capacity (2015-2025)", but the vertical axis is labelled "gigawatts". Storage capacity is not measured in gigawatts. Edit: yes, batteries also have a power delivery rating, but that is not what is implied by "storage capacity".