The ultimate home power supply?

[joelha]

I don't know how electrically quiet or noisy it might be, but from an audiophile perspective, it's certainly intriguing . . . at least to this audiophile.

 

Tesla wants to power your home with a battery - Apr. 22, 2015

 

Joel

[HenSch]

Hi Joel,

 

I fear it's going to add a lot of noise to the mains supply. Every kind of DC/AC converter, which is needed to feed the battery power into the electricity grid, is a switching power device.

 

Only a few years back, when the electricity companies here in Germany started the first installations of so-called Smart Meter (electronic electricity meters), significant problems with the accuracy of these meters became evident once they are installed after a power converter of a photovoltaic system. It came out that these converters are creating a lot of noise in the frequency range from 2kHz up to 150kHz, which led to misfunctioning of the electronic meter.

 

Needless to say that this is a fatal frequency range for us audiophiles...

 

Following the future "smart grid" ideas, a lot of additional noise is yet to come into our electricity supply, I suppose. I guess that is why mains filter are rising more and more attention recently from my perspective.

 

Henning

[Jud]

Depends. We've had a long thread on this recently. It turns out some "pure sine wave" inverters have harmonic distortion figures lower than those specified for utility current to the home.