This is by recollection but IIRC the cost of summer peak power in California (not subsidized residential) was about $0.50/kWh back maybe 5 years ago (Home Power Magazine). Summer off peak was more like $0.22.
What?!! I thought electricity in the US was cheaper than here in Austria (with our government run electricity companies, lack of coal power plants and what not).
I have never paid more than 12cents per kWh here, at least according to my electricity bill. And I always thought electricity here was expensive! LOL!
In the southeast US, it's more like 10c per KwH. it probably has something to do with Southern Company buying up all the existing nuke plants. where I live, the electricity comes from Plant Vogel.
The values mentioned were ToD pricing of commercial customers during the height of the California "mal-regulation crisis". As I pointed out in that same post, the prices dropped to the more recent price of 31&9 per kWh. Residential users are typically subsidized at or below the lowest ToD price. Has something to do with them being able to vote, I should guess!
Several comments seem to suggest that there is a belief that this Soduim battery might compete with Li Ion or other high density batteries for compactness/ weight. That is not my impression. For the same energy these batteries may be even bigger than lead acid batteries (though probably lighter).
But, that is not the point. These batteries are claimed to be very cheap per KWh stored ($0.03 per kWh vs $1.00 per kWh for lead acid batteries).
This is by recollection but IIRC the cost of summer peak power in California (not subsidized residential) was about $0.50/kWh back maybe 5 years ago (Home Power Magazine). Summer off peak was more like $0.22.
What?!! I thought electricity in the US was cheaper than here in Austria (with our government run electricity companies, lack of coal power plants and what not).
I have never paid more than 12cents per kWh here, at least according to my electricity bill. And I always thought electricity here was expensive! LOL!
http://www.eia.doe.gov/electricity/epm/table5_6_b.html
U.S. Residential Electrical prices range from a low of 7.6 cents to a high of 27.6 cents per kilowatt-hour - average.
Generally, when the base load is covered by Nuclear, like in Illinois or Missouri, electricity is a LOT cheaper. But another major cost factor is the more stringent anti-pollution regulations in dense areas, and, of course, the greater kickbacks - er, lobbying costs - to make laws they can game for higher profits. And the looser oversight committees.
I was in the drug store (Walgreens) the other day and saw a hearing aid battery claiming to be lithium-air. I didn't realize that lithium-air battery technology was ready for the market.
Properties of metal-air batteries
Of the various metal-air battery chemical couples (Table 1), the Li-air battery is the most attractive since the cell discharge reaction between Li and oxygen to yield Li2O, according to 4Li + O2 → 2Li2O, has an open-circuit voltage of 2.91 V and a theoretical specific energy of 5200 Wh/kg. In practice, oxygen is not stored in the battery, and the theoretical specific energy excluding oxygen is 11140 Wh/kg, or 40.1 megajoules per kilogram. Compare this to the figure of 44 megajoules per kilogram for gasoline
U.S. Residential Electrical prices range from a low of 7.6 cents to a high of 27.6 cents per kilowatt-hour - average.
7.6 cents is very good, 27.6 cents is very bad (though that is only Hawaii anyway).
It is interesting how much prices vary in the US though. I was not aware of that.
U.S. Residential Electrical prices range from a low of 7.6 cents to a high of 27.6 cents per kilowatt-hour - average.
7.6 cents is very good, 27.6 cents is very bad (though that is only Hawaii anyway).
It is interesting how much prices vary in the US though. I was not aware of that.
Remember that the united States are not purely one country but to a degree still a collection of States, each with its own regulatory bodies, taxes, and friendliness to the electric companies. Consider the united States something like the EU. Would it surprise you if France had different prices than Greece? If not, why should it surprise you that Florida might have different prices than Georgia?