[Beowulf] Electricity cost: a critical survival issue of our ICT infrastructures.

[Eugen Leitl]

On Wed, Apr 10, 2013 at 09:40:38PM +0000, Lux, Jim (337C) wrote:
> In the US, electricity comes mostly from coal and natural gas, with the latter rapidly replacing the former.  France is somewhat unusual in having significant nuclear generation, but in the US, nuclear has been roughly constant at about 20%.

It doesn't have to be nuclear, coal or gas
http://www.renewableenergyworld.com/rea/news/article/2012/10/german-coal-fired-generation-of-electricity-falls-while-renewable-generation-rises
 
> 
> In PetaWattHr
> Coal	1.517
> Gas	1.231	 (natural)
> Nuc	0.769
> Hydro	0.277
> Renew	0.219	(wind, tidal, solar)
> Oil	0.013
> Other	0.012	(no idea what this is, biomass?)
> Gas	0.011	(other, blast furnace gas, e.g.)
> Coke	0.010 	 (from oil)
> 
> Over the last few years, Coal is decreasing by about 200 TeraWh/yr, Nat gas increasing by about the same. Oil is decreasing by about 3-4 TWh/yr, renewable is increasing about 20-25 TWh/yr.
> 
> http://www.eia.gov/electricity/monthly/epm_table_grapher.cfm?t=epmt_1_1