5 ms·

Lithium-ion battery pack prices hit record low

53 points by ryanalam 3y ago

hristov 3y ago
Good news. Lets hope this results in lower EV prices and higher EV adoption.
- ElijahLynn 3y ago
  Yes! This combined with a 10 fold increase in public EV chargers, using the new NACS (North American Charging Standard) that Tesla open sourced and all manufacturers agreed to implement in 2025 will be the tipping point! At some point gas stations will lose enough revenue they will have to raise the prices, which will only accelerate the shift.
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CorrectHorseBat 3y ago
So why are the prices of home batteries still around €1000/kWh?
- briffle 3y ago
  They aren't. your just looking at the name brands that want to sell you a "Solution" This is around 5Kwh for $1300. They even sell a rack that holds 5 of these. You can have more than one rack hooked up to your inverter) https://www.currentconnected.com/product/sok-sk48v100-ncbt-user-serviceable-rack-mountable-battery/ https://www.currentconnected.com/product/sok-sk48v100-ncbt-u... Another couple hundred for another that is UL listed: https://www.currentconnected.com/product/eg4-ll-48v-100ah-server-rack-battery/ https://www.currentconnected.com/product/eg4-ll-48v-100ah-se...
  - keep_reading 3y ago
    30kWh for $8k here https://signaturesolar.com/eg4-lifepower4-lithium-batteries-kit-30-72kwh-6-server-rack-batteries-pre-assembled-enclosed-rack-with-door-wheels-busbar-covers/ https://signaturesolar.com/eg4-lifepower4-lithium-batteries-...
  - CorrectHorseBat 3y ago
    I'm not sure if I would classify that as a home battery, but it does indeed seem much more reasonably priced. I don't know if I can find a local installer selling this or anything else in the same price/kWh category. With inverters and solar panels I don't have this problem.
    - briffle 3y ago
      They are literally used as home batteries for many people that currently live off-grid. Yes, you would need an inverter as well. Just like you would for any kind of device to store 120V/240V AC power as 12/24/48V DC power. (Both that site I linked to and the other poster have lots and lots of inverters that can be tied to grid, and solar, and carey enough power to run your entire home for < $2k
      - CorrectHorseBat 3y ago
        I wouldn't call off-grid a typical home situation either, it's just something that is not done here. I mean I can go to any local installer and get solar panels and inverters that are reasonably priced, but with batteries that's just not the case.
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pg_bot 3y ago
I'm trying to think of the second order effects of solar and battery storage if it becomes cheap enough to run your entire house without the grid. Wouldn't it make sense to design houses with DC power from the ground up? Why go through the inefficient inverter if you are generating DC from a solar panel and using DC power internally in all of your appliances? Assuming $3-5 per watt fully installed and a 6 kWh solar panel array. Plus and additional $10k worth of batteries, you should be able to run most houses 24/7/365 off solar power. So a $40k investment should be around what you need to generate all the power for your home for ~25 years. (Assuming you average 30 kWh used per day) This is pretty close to being a no brainer for certain areas of the country with high electricity prices. (California, Hawaii)
- snapplebobapple 3y ago
  Many areas it is illegal to not be connected to the grid in the city (it certainly is in my home city in Canada). I bet a lot of stuff would go DC in this case (i.e. lighting) I suspect appliances would stay AC because they would put a huge premium on dc appliances just because they can.
  - joshspankit 3y ago
    > Many areas it is illegal to not be connected to the grid It’s mind-boggling that this happened as it only seems to serve the private power companies while simultaneously restricting entire populations from some of the biggest benefits of current and future sustainable energy sources.
    - snapplebobapple 3y ago
      It's not really surprising when you look at the history. In my area the distribution at the city level was put in by the public utility owned by the city, so of course they are going to mandate that the business the city is taking huge debt out in to gamble on electrification will be propped up with a requirement to be grid connected to get any permit. This doesn't make it right, but I get why they did this and why it continues.

53 points by ryanalam 3y ago

hristov 3y ago

Good news. Lets hope this results in lower EV prices and higher EV adoption.

ElijahLynn 3y ago
Yes! This combined with a 10 fold increase in public EV chargers, using the new NACS (North American Charging Standard) that Tesla open sourced and all manufacturers agreed to implement in 2025 will be the tipping point! At some point gas stations will lose enough revenue they will have to raise the prices, which will only accelerate the shift.

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CorrectHorseBat 3y ago

So why are the prices of home batteries still around €1000/kWh?

briffle 3y ago
They aren't. your just looking at the name brands that want to sell you a "Solution" This is around 5Kwh for $1300. They even sell a rack that holds 5 of these. You can have more than one rack hooked up to your inverter) https://www.currentconnected.com/product/sok-sk48v100-ncbt-user-serviceable-rack-mountable-battery/ https://www.currentconnected.com/product/sok-sk48v100-ncbt-u... Another couple hundred for another that is UL listed: https://www.currentconnected.com/product/eg4-ll-48v-100ah-server-rack-battery/ https://www.currentconnected.com/product/eg4-ll-48v-100ah-se...
- keep_reading 3y ago
  30kWh for $8k here https://signaturesolar.com/eg4-lifepower4-lithium-batteries-kit-30-72kwh-6-server-rack-batteries-pre-assembled-enclosed-rack-with-door-wheels-busbar-covers/ https://signaturesolar.com/eg4-lifepower4-lithium-batteries-...
- CorrectHorseBat 3y ago
  I'm not sure if I would classify that as a home battery, but it does indeed seem much more reasonably priced. I don't know if I can find a local installer selling this or anything else in the same price/kWh category. With inverters and solar panels I don't have this problem.
  - briffle 3y ago
    They are literally used as home batteries for many people that currently live off-grid. Yes, you would need an inverter as well. Just like you would for any kind of device to store 120V/240V AC power as 12/24/48V DC power. (Both that site I linked to and the other poster have lots and lots of inverters that can be tied to grid, and solar, and carey enough power to run your entire home for < $2k
    - CorrectHorseBat 3y ago
      I wouldn't call off-grid a typical home situation either, it's just something that is not done here. I mean I can go to any local installer and get solar panels and inverters that are reasonably priced, but with batteries that's just not the case.
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pg_bot 3y ago

I'm trying to think of the second order effects of solar and battery storage if it becomes cheap enough to run your entire house without the grid. Wouldn't it make sense to design houses with DC power from the ground up? Why go through the inefficient inverter if you are generating DC from a solar panel and using DC power internally in all of your appliances? Assuming $3-5 per watt fully installed and a 6 kWh solar panel array. Plus and additional $10k worth of batteries, you should be able to run most houses 24/7/365 off solar power. So a $40k investment should be around what you need to generate all the power for your home for ~25 years. (Assuming you average 30 kWh used per day) This is pretty close to being a no brainer for certain areas of the country with high electricity prices. (California, Hawaii)

snapplebobapple 3y ago
Many areas it is illegal to not be connected to the grid in the city (it certainly is in my home city in Canada). I bet a lot of stuff would go DC in this case (i.e. lighting) I suspect appliances would stay AC because they would put a huge premium on dc appliances just because they can.
- joshspankit 3y ago
  > Many areas it is illegal to not be connected to the grid It’s mind-boggling that this happened as it only seems to serve the private power companies while simultaneously restricting entire populations from some of the biggest benefits of current and future sustainable energy sources.
  - snapplebobapple 3y ago
    It's not really surprising when you look at the history. In my area the distribution at the city level was put in by the public utility owned by the city, so of course they are going to mandate that the business the city is taking huge debt out in to gamble on electrification will be propped up with a requirement to be grid connected to get any permit. This doesn't make it right, but I get why they did this and why it continues.