Hacker News Reader

What's the use case here? Power outages?

In Europe we have plug-in batteries that just cycle PV every day to lower your electrical bill. But these are usually 2,5kWh or 5kWh.

In Europe you are hard limited to 800watt on a normal plug, no way you can do 2,4kW without a special fuse.

View on HN

I don’t know where the 800W is coming from. It is quite common to have 16A breakers on a circuit. That is 3,8kW. My regular apartment has 3x20A breakers and for example my induction hob is 7,2kW two phase.

The 800 watt is a safeguard.

If you add the battery to a 16A circuit then you can theoretically draw 3,8kW + 800watt on it with the battery.

With this Pila battery you could put 3,8kW + 2,4kW on the same circuit!

If you want more than 800watt you can't use a regular plug in your house, it has to be a dedicated circuit.

Do you have a link to such a plug-in battery that's marketed for lowering electrical bills?

Reply on news.ycombinator.com