PowerSwitch Main Page
PowerSwitch
The UK's Peak Oil Discussion Forum & Community
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Battery powered homes

 
Post new topic   Reply to topic    PowerSwitch Forum Index -> Living in the Future
View previous topic :: View next topic  
Author Message
biffvernon



Joined: 24 Nov 2005
Posts: 18551
Location: Lincolnshire

PostPosted: Sat Feb 21, 2015 11:47 am    Post subject: Battery powered homes Reply with quote

Elon Musk, Tesla, and battery storage for the home:

http://www.theverge.com/2015/2/13/8033691/why-teslas-battery-for-your-home-should-terrify-utilities
_________________
http://biffvernon.blogspot.co.uk/
Back to top
View user's profile Send private message Send e-mail Visit poster's website
adam2
Site Admin


Joined: 02 Jul 2007
Posts: 6464
Location: North Somerset

PostPosted: Sat Feb 21, 2015 12:27 pm    Post subject: Reply with quote

Cutting through the marketing hype, this does not appear to be anything new.
Battery storage has its merits, and is almost unavoidable for off grid premises or for backup in case of utility failure.

Batteries have improved in recent years and further improvements seem likely, but AFAIK Tesla have not developed any radically new or improved battery technology as compared to their rivals.

In any case the priorities for electric vehicle batteries and those for bulk household energy storage are very different.
EV batteries must be as compact and lightweight as possible, cost is often less important especially for high performance vehicles. The use of relatively hazardous materials is tolerated, it being argued that this is no more risky than the established technology of many gallons of volatile petrol, stored in a lightweight tank under the rear seats.

For bulk energy storage in a home, the main priority is least possible cycle cost and the absence of volatile materials. I for one do not fancy 100KG of lithium indoors any more than I would keep 100KG of petrol indoors.
Weight and bulk are relatively unimportant, a battery to power a home for some days will need a dedicated room. probably in the basement. It matters little if the battery weighs 2 tons, or 6 tons, provided that it is cheap and safe.
_________________
"Installers and owners of emergency diesels must assume that they will have to run for a week or more"
Back to top
View user's profile Send private message
clv101
Site Admin


Joined: 24 Nov 2005
Posts: 7731

PostPosted: Sat Feb 21, 2015 2:47 pm    Post subject: Reply with quote

adam2 wrote:
For bulk energy storage in a home, the main priority is least possible cycle cost and the absence of volatile materials. I for one do not fancy 100KG of lithium indoors any more than I would keep 100KG of petrol indoors.
Weight and bulk are relatively unimportant, a battery to power a home for some days will need a dedicated room. probably in the basement. It matters little if the battery weighs 2 tons, or 6 tons, provided that it is cheap and safe.


Indeed, this is key. I would be very surprised if the optimum battery technology for mobile applications (phones, laptops, cars...) was the same as for static applications, buildings. A very different set of criteria.
_________________
PowerSwitch on Facebook | The Oil Drum | Twitter | Blog
Back to top
View user's profile Send private message Visit poster's website
biffvernon



Joined: 24 Nov 2005
Posts: 18551
Location: Lincolnshire

PostPosted: Sat Feb 21, 2015 6:38 pm    Post subject: Reply with quote

I suspect Elon Musk knows this. Smile
_________________
http://biffvernon.blogspot.co.uk/
Back to top
View user's profile Send private message Send e-mail Visit poster's website
biffvernon



Joined: 24 Nov 2005
Posts: 18551
Location: Lincolnshire

PostPosted: Sun Mar 22, 2015 10:42 pm    Post subject: Reply with quote

Maybe Elon Musk is not so smart?

http://offgridquest.com/news/tesla-motors-announces-a-new-home-batter

Quote:
“We are trying to figure out what would be a cool stationary (battery) pack,” Forbes had quoted Musk as saying at the time. “Some will be like the Model S pack: something flat, 5 inches off the wall, wall mounted, with a beautiful cover, an integrated bi-directional inverter, and plug and play.”

_________________
http://biffvernon.blogspot.co.uk/
Back to top
View user's profile Send private message Send e-mail Visit poster's website
biffvernon



Joined: 24 Nov 2005
Posts: 18551
Location: Lincolnshire

PostPosted: Fri Oct 30, 2015 12:52 am    Post subject: Reply with quote

Lithium oxygen progress:
http://www.cam.ac.uk/research/news/new-design-points-a-path-to-the-ultimate-battery
_________________
http://biffvernon.blogspot.co.uk/
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    PowerSwitch Forum Index -> Living in the Future All times are GMT + 1 Hour
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group