Hacker News Reader

HNHacker News

Top New Best Ask Show Jobs

Comment by ju-st | Hacker News Reader

Full thread

ju-st·

120 M€ [https://www.pv-magazine.de/2017/06/22/ewe-plant-bau-eines-ba...]

750 MWh

------

160 € per kWh.

LiIon is currently at ~170€/kWh (200USD). LiIon prices will drop more until 2023 but 160€ is still a very good considering this is a research project.

View on HN

In a high use setting like grid storage, the cost per charge cycle is a more important metric. Many lithium systems are only rated for ~1000 deep cycles. Since this redox-flow system is advertised at 10,000 cycles, it could end up being much cheaper overall.

Tesla Powerwall battery is $5,500 for 14kWh. That's $392/kWh.

Where do you get the $200/kWh batteries from?

Possibly bulk pricing?

I googled it, e.g. "Since 2014, the cost of completed packs has crashed from $400/kWh to below $200/kWh for some stationary storage systems, he says. Similar reductions have hit the automotive market. GM has said it’s paying LG $145/kWh for the cells in the 2017 Bolt battery pack." http://spectrum.ieee.org/transportation/advanced-cars/2017-i... Several other websites mention 200USD as the price Tesla pays for the packaged cells.

You're comparing a small consumer product to a large industrial installation? Tesla's Powerpack is an industrial-scale system.

Tesla Powerwall is a consumer product.

https://www.tesla.com/powerwall

Large installations are a different product:

https://www.tesla.com/powerpack

Right, and the big industrial system I'm referring to is the flow battery described in this article. Which I'm sure you read.

Why the downvotes? I have not found a source that will provide me with Li-Ion cells (without battery management systems) for < 300 USD/kWh

Reply on news.ycombinator.com