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I've read few articles about it today and some are incorrectly reporting that Northvolt will be producing 150GWh of batteries after 6bln investment. $2.8bln wi
by antattack 5y ago
I've read few articles about it today and some are incorrectly reporting that Northvolt will be producing 150GWh of batteries after 6bln investment.
$2.8bln will finance 20GWh production upgrade, therefore Northvolt will need to raise a lot more money to achieve 150GWh production.
- jiggawatts 5y agoThose are the wrong units. A single cell's capacity is measured in Watt-Hours, which is a unit of stored energy. A factory making some number of cells per hour has its production measured in Watts, which is a unit of power. The article makes this mistake several times, conflating energy and power in some places, but then correctly saying "150 GWh ... annual capacity" elsewhere. PS: 150 GWh/annum is just 17 megawatts! This goes to show just how difficult batteries are to produce...
- chris_va 5y ago> 150 GWh/annum is just 17 megawatts! ... no no no ... these aren't single use cells, instantaneous power isn't a meaningful unit (I mean energy/time is technically power, but one couldn't compare this to power as measured from a traditional power plant or anything like taht). If one had to somehow contort the output into watts: Recharged every week, 150GWh of car batteries would eat ~1GW of grid capacity. It is still a very long way from any meaningful fraction of grid energy (~4TW globally), but watts really aren't the right unit to measure production capacity.