Friday, 22 May 2015

Tesla's new PowerWall Battery from Elon Musk


Tesla  Powerwall Battery

see link

In a conversation with a city councilor who is all for the community solar project said  “how about Tesla’s new battery” as if this was the solar answer.

Let me say these do have applications, but not here in Nelson these batteries fall under the category of  “toys for rich boys”

Here is an excerpt from an article

That's some pricey power, given how infrequently the lights go out. The average US home loses power for just under 2 hours a year. Over the course of a nine-year lease that average homeowner would pay $277 for each hour the battery is running.

To some, that peace of mind may be worth it, though many who wanted that peace of mind bought a home backup generator long ago.

The price to go completely off the grid is even higher because that would require a rooftop solar system bigger than what is now usually installed, and at least two Powerwall batteries. That kind of system would cost $96,000 without subsidies, about 74 years of electric bills for an average US home.



Batteries are toxic require a lot of non renewable energy and are inefficient.  They also only last for a certain number of cycles.  Will Nelson use solar to charge batteries?   I won't bother trying to help anyone understand this, either you know this is nuts or you believe.


Need I say more?   This comment came from the same councilor that told me the solar garden is free its paid for by Nelson hydro!

Tesla will likely sell millions, rich boys toys.