I want one of these....... and solar panels, of course!
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Launching Tesla Energy
One of the main challenges of running a power grid is that supply and demand have to be in balance at all times. This means that electricity has to be consumed when it is generated. This makes it harder to integrate sources of energy over which you don't have control, such as wind and solar power.
That's the problem that having more energy storage connected to the power grid could solve.
Tesla publicly launched a new division last night, Tesla Energy, and unveiled the Tesla Powerwall storage system for homes and businesses.
It does three main things: First, it can store solar energy if you have solar panels, second, it can store energy from the grid off-peak when power is cheapest (in places where utilities have time-of-use dynamic pricing) and release it when power is most expensive, saving you money and smoothing out the demand peak, which is good for the grid overall. Finally, it can act as a backup power source if there's a power failure.