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- From: slb@suned1.nswses.navy.MIL (Shari L Brooks)
- Newsgroups: sci.space
- Subject: Re: Solar Power Satellites
- Summary: How much earth material to GEO?
- Message-ID: <20832@suned1.Nswses.Navy.MIL>
- Date: 21 Jul 92 23:51:59 GMT
- References: <a5fb3274@Kralizec.fido.zeta.org.au> <BrHuE7.DGn@news.cso.uiuc.edu> <1992Jul19.162911.11057@access.digex.com> <14d6jmINN65f@agate.berkeley.edu>
- Reply-To: slb@suned1.UUCP (Shari L Brooks)
- Organization: Naval Satellite Operations Center, Point Mugu, CA, USA
- Lines: 23
-
- In article <14d6jmINN65f@agate.berkeley.edu> gwh@soda.berkeley.edu (George William Herbert) writes:
-
- >*Re: costs; Interesting new work suggests that it's possible to build
- >a SPS in the 5 gigawat range (sort of standard sized) with about 85,000
- ^^^^^^^
- >tons of mass, 99.4+-% of which can be lunar. Thus the potential cost
- >is as low as 540 tons to GEO, plus lunar & L2 factories, plus the space
- >transportration infrastructure to move stuff from a L2 factory to GEO.
- >Which is half to an eighth of what earlier estimates looked like.
- >The estimated cost of building an SPS is coming down, presuming that
- >lunar materials work...
-
- Does this new work assume that more than one will be built? The 540 tons
- to GEO, does that cover only building the powersat or is it also including
- whatever materials necessary to build the factories? Or is it assumeing
- the infrastructure has already been in place and this is what it takes to
- build one?
-
- --
- Shari L Brooks | slb%suned1.nswses.navy.mil@nosc.mil
- NAVSOC code NSOC323D | shari@caspar.nosc.mil
- NAWS Pt Mugu, CA 93042-5013 |
- --> All statements/opinions above are mine and mine only, not the US Navy's.
-