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- From: stead@skadi.CSS.GOV (Richard Stead)
- Newsgroups: sci.energy
- Subject: Re: Nuclear Power and Cli
- Message-ID: <51738@seismo.CSS.GOV>
- Date: 3 Jan 93 20:29:32 GMT
- References: <5218.1017.uupcb@spacebbs.com>
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-
- In article <5218.1017.uupcb@spacebbs.com>, howard.smith@spacebbs.com (Howard Smith) writes:
- > TI>When developing countries begin to industrialize, their electricity needs
- > TI>will quickly outgrow what is available with solar and wind technology.
- > TI>What then? Large units for baseload power, accented with smaller scale
- > TI>generation for peak loads, etc.
- >
- > You are making an invalid assumption. Why should their needs outgrow
- > "what is available with solar and wind technology". Solar and wind
- > technology is quite capable of supplying the needs of this country of
- > 257 million. The harvestable wind of just 12 midwest states could supply
-
- Depends on your definition of harvestable. How about a reference describing
- this for us? Does it include giving plenty of clearance for roadways,
- right-of-ways, towns and residences? How about sensitive habitat, were
- wetlands, forests, riparian environments, etc. eliminated from consideration?
- How about conflict between agricultural uses and the wind farms?
-
- > our needs on a competitive basis. Solar is rapidly becomming
-
- Both supplying our needs and "competitive" need justification. Supplying
- our needs includes non-varying baseload requirements - but the wind is
- not that cooperative. However, I seriously doubt that long-term energy
- storage (up to days at a time) has been included in the costing. There
- is also the problem of delivering that power from out in the middle of
- nebraska somewhere to NY or whereever else the large demands are. So
- this massive midwest windfarm has not been demonstrated to supply our
- needs. Nor has it been demonstrated to be competitive. What are the
- cost estimates and what expenditures do they assume? Also, do they
- assume unproven improvements in technology? The only competitive wind
- farms I am aware of are in relatively unique environments with relatively
- constant, high-speed, uni-directional or bi-directional winds (coastal
- environments and certain mountain valleys).
-
- > competitive and is fully capable of also meeting our needs.
-
- This is also unproven for the same reasons.
-
- > TI>I couldn't see solar and wind supporting a country of 10-20 million
- > TI>or more, and I wouldn't want to be in Bangladesh when a typhoon
- > TI>carries off the country's entire capacity of solar panels.
- >
- > In most cases the solar panels will be firmly attached to the structures
- > they power, and if the typhoon carries off the buildings, then they are
- > in deeper trouble.
-
- Firmly attached is also a relative term. All those roofs in South Florida
- were considered "firmly attached" as well, at least until they blew away.
- The mounting systems I have seen for 1) PV panels, 2) hot water panels and
- 3) mirrors for the power tower; all would not survive the heavy winds of
- a strong typhoon. I'm talking about sustained winds in excess of 80 mph
- and gusts over 120 mph. That kind of typhoon is relatively common, they
- come even more powerful, just like hurricanes. Even with mounts strong
- enough to keep them down in a big storm, the panels will be destroyed
- by the first chunk of wind-borne debris that smashes into them.
-
-
- --
- Richard Stead
- Center for Seismic Studies
- Arlington, VA
- stead@seismo.css.gov
-