Yesterday I wrote:
I have talked about this progression in the past: the transmission /
energy / electricity grid will gradually be improved because of the
emphasis on wind and solar energy. Several generations from now, the
solar and wind farms can be replaced by small nuclear
electricity-generating sites, taking up a fraction (like 1%) of the land
that is required by wind/solar. By then, perhaps even the shale
revolution will have run its course and close to 100% of electricity
will be generated by nuclear energy.
It turns out that there is a similar story, and a very interesting story, over at
Carpe Diem on the same subject: the amount of land tied up / made unproductive by wind and solar farms.
Carpe Diem is writing: Inconvenient fact: To produce the same energy, a windfarm requires 725X more land than a fracking site.
- For the “land area of the whole facility,” a wind farm requires 725 times more land than a fracking site
to produce the same energy (9.5 TWh) — about 3,500 acres/5.6 square miles for a wind farm
with 87 328-foot tall turbines
vs. about 5 acres.
- A solar park requires 462 times more land area than a fracking site: about 2,290 acres or about 3.5 square miles.
But the real answer to US energy goes even farther: small nuclear power reactors. There is a long, long article summarizing progress to date
over at the World Nuclear Organization blog:
A 2009 assessment by the IAEA under its Innovative Nuclear Power
Reactors & Fuel Cycle (INPRO) program concluded that there could be
96 small modular reactors (SMRs) in operation around the world by 2030
in its 'high' case, and 43 units in the 'low' case, none of them in the
USA. (In 2011 there were 125 small and medium units – up to 700 MWe – in
operation and 17 under construction, in 28 countries, totaling 57 GWe
capacity.)
In January 2012 the DOE called for applications from industry to
support the development of one or two US light-water reactor designs,
allocating $452 million over five years. Four applications were made,
from Westinghouse, Babcock & Wilcox, Holtec, and NuScale Power, the
units ranging from 225 down to 45 MWe.
DOE announced its decision in
November 2012 to support the B&W 180 MWe mPower design, to be
developed with Bechtel and TVA. Through the five-year cost-share
agreement, the DOE will invest up to half of the total project cost,
with the project's industry partners at least matching this. The total
will be negotiated between DOE and B&W, up to $226 million.
In March 2013 the DOE called for applications for second-round
funding, and proposals were made by Westinghouse, Holtec, NuScale,
General Atomics, and Hybrid Power Technologies, the last two being for
EM2 and Hybrid SMR, not PWRs. Other (non-PWR) small reactor designs will
have modest support through the Reactor Concepts RD&D program. A
late application ‘from left field’ was from National Project Management
Corporation (NPMC) which includes a cluster of regional partners in the
state of New York, South Africa’s PBMR company, and National Grid, the
UK-based grid operator with 3.3 million customers in New York,
Massachusetts and Rhode Island.
By the way,
another great article from Matt Ridley via
Carpet Diem on the idiocy surrounding wind and solar power. From Matt Ridley,
from Great Britain:
Despite the best efforts of the Conservatives to rein in their
Lib Dem colleagues, the renewable-energy bandwagon careens onward,
costing ever more money and doing real environmental harm, while
producing trivial quantities of energy and risking blackouts next
winter. People keep telling me it’s no good being rude about all
renewables: some must be better than others. Well, I’m still
looking:
Tidal power remains a (literal) non-starter; if you ask
ministers why nothing has been built, they say it’s not for want of
proffering ludicrously generous subsidies on our behalf. Yet still
no takers.
Wave power: again, the sky’s the limit for what the government
will pay if you can figure out how to make dynamos and generators
survive the buffeting of waves, corrosion of salt and encrustation
of barnacles. Nothing doing.
Geothermal: perhaps great potential in the future for heating
homes through district heating schemes, though expensive here
compared with Iceland, but not much use for electricity. Air-source
and ground-source heat pumps, all the rage a few years ago, have
generally proved more costly and less effective than advertised,
but they are getting better. Trivial contribution so far.
Solar power: one day soon it will make a big impact in sunny
countries, and the price is falling fast, but generating for the
grid in cloudy Britain where most power is needed on dark winter
evenings will probably never make economic sense. Covering fields
in Devon with solar panels today is just ecological and economic
vandalism. Solar provides about a third of one per cent of world
energy.
Offshore wind: Britain is the world leader, meaning we are the
only ones foolish enough to pay the huge subsidies (treble the
going rate for electricity) to lure foreign companies into tackling
the challenge of erecting and maintaining 700-ft metal towers in
stormy seas. The good news is that the budget for subsidising
offshore wind has almost run out. The bad news is that it is
already costing us billions a year and ruining coastal views.
And so it goes. Algore is suing Aljazeera.
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