Re: [Vo]:EIA graphs shows the decline in coal use, increase in natural gas and wind

Alain Sepeda wrote: > I'm not convinced Powerwall will be less expensive than LENR capacity, but > why not. > I do not think of full-scale power wall would be needed with a cold fusion generator. The PowerWall has 7 kWh capacity. I think that a steam turbine cold fusion

Re: [Vo]:EIA graphs shows the decline in coal use, increase in natural gas and wind

This look rational. Note that even with the grid surviving, we would not need the usual transcontinental grid, but a small clustered nano/microgrid. One place for optimisation is connection different consumers like housing and industry, or commerces, and offices, electric cars, ... I'm not

RE: [Vo]:EIA graphs shows the decline in coal use, increase in natural gas and wind

In some areas such as where I live, there are separate charges for delivering electricity and the actual electricity itself on the utility bill. Many months I pay more for line delivery charges than for actual electricity itself.

Re: [Vo]:EIA graphs shows the decline in coal use, increase in natural gas and wind

Here is a situation that I think would be unfair to the power companies, and unsustainable. The Tesla Powerwall project aims to put small batteries in houses so that solar power can be saved up during the day and used at night. Suppose this pans out, and also solar arrays get cheaper and larger. A

Re: [Vo]:EIA graphs shows the decline in coal use, increase in natural gas and wind

I wrote: > They would install a gas powered backup generator that turns on > automatically. This costs about $3000 for a small 11 kW unit (2.5 years of > $100 payments to the power company). > Note that in this scenario they have a Tesla Powerwall, so they do not need a generator capable of

[Vo]:EIA graphs shows the decline in coal use, increase in natural gas and wind

The EIA site has a wealth of data for every major source of energy. Here is an interesting graph of annual coal consumption since 1949: http://www.eia.gov/beta/MER/index.cfm?tbl=T06.02#/?f=A=1949=2014=1-5-12-13-14 In 1950 most coal was consumed by industry. Mainly steel production I expect. In

Re: [Vo]:EIA graphs shows the decline in coal use, increase in natural gas and wind

One of the states where there is an ongoing war between the electric utility companies, the solar homeowners, and solar businesses is Arizona. It seems to be a centroid of a lot of utility changes. I have read about the utility companies holding private large scale cross-utility conferences to

Re: [Vo]:EIA graphs shows the decline in coal use, increase in natural gas and wind

Bob Higgins wrote: One of the states where there is an ongoing war between the electric > utility companies, the solar homeowners, and solar businesses is Arizona. > It seems to be a centroid of a lot of utility changes. I have read about > the utility companies

Re: [Vo]:EIA graphs shows the decline in coal use, increase in natural gas and wind

Since 2000, wind has gone from producing 0.3% as much as coal to 11%. You can see why the coal companies are in a panic, and trying to stop the expansion in wind energy. Overall U.S. electricity production has not increased much since 2007, so any increase in wind, natural gas or solar means less

Re: [Vo]:EIA graphs shows the decline in coal use, increase in natural gas and wind

The Hawaiian Electric Power Company is squawking about the effects of rooftop solar: http://www.hawaiianelectric.com/heco/_hidden_Hidden/CorpComm/Hawaiian-Electric-Companies-propose-plan-to-sustainably-increase-rooftop-solar They make valid points here. It is not reasonable to ask the power

Re: [Vo]:EIA graphs shows the decline in coal use, increase in natural gas and wind

I wrote: > . . . the power companies do have a valid point. You cannot expect them to > act as distribution grid for PV electricity for free. If PV becomes a > significant fraction of all electricity they will have to start charging > everyone a "toll" for use of the distribution network, even