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Comment: Happens all the time (Score 3, Interesting) 131 131

There's news like this every week. None of these is clearly better cheaper or faster to market than any other breakthrough like it at this early stage. It all evens out to a fairly steady improvement over time. Battery weight and prices still keep halving every five years or so and that's already factored into stock prices, minus some risk.

Comment: They already sell batteries for power companies (Score 1) 116 116

From TFA:

The company created a subsidiary called ACCUmotive in 2009 to develop lithium-ion batteries. It built an energy-storage array that is now operated by German electricity joint venture Coulomb. The system's 96 lithium-ion "modules" boast a combined 500 kilowatt hours of storage capacity, which is used to stabilize the Saxony Kamenz power grid. There are plans to expand this installation to 3,000 kWh of storage capacity.

Comment: Tesla battery also far larger than needed (Score 1) 334 334

The Tesla Battery's cost $13,000 would pay most people's electric bills outright over it's life.

The Tesla's battery is also 53, 70 or 85 kWh whereas the average household uses around 1 kW (kWh/h) and certainly can get by with a few kWh of storage to handle its overproduction of solar during a day.

In the end, it's just economics. Does solar + battery pay itself back in lowered electricity bills? If it does, nothing else matters.

Comment: Price difference may not matter to everyone (Score 2) 149 149

The difference between 25 and 40 € isn't that big. Depending on where exactly you are and want to go in Helsinki/Tallinn, it may well be more convenient to take a train.

Heck, people ride the metro for nearly half an hour to get downtown for beers. If I can get to a decent Tallinn pub in less than an hour door-to-door I'd probably go now and then, depending on how late in the evening I can get back home.

For those who don't know, alcohol and restaurant food are around half the price in Tallinn compared to Helsinki.

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