I have developed a system that masses 600+ tonnes and is lofted into
orbit by a reusable vehicle derived from our experience with the
External Tank only.

The satellite consists of a 5.2 km diameter inflatable concentrator.
This concentrator focuses sunlight on to a 125 m diameter CPV/Emitter
array. This array beams IR laser energy at 900 nm to 8,000 receivers
across the visible face of the Earth. Each beam generates 1.25 MW at
the 22 m diameter receiver using silicon within a water filled lens
array. A total of 10,000 MW.

http://www.scribd.com/doc/35439593/S...-Satellite-GEO

At $0.042 per kWh each satellite generates $300 million per month in
revenues. Four satellites, including the launcher fleet and
operations
to place four satellites cost less than $14.4 billion - the annual
income of four satellites on GEO.

Multiple RS-68 pump sets at the base of each ET derived airframe feed
an aerospike engine at the base of each airframe - which work
together
in groups of 7 to create a multi-stage launcher that places the
satellite on orbit.

The satellite deploys on LEO and uses solar powered ion engines -
which give it 30 years of station keeping capability - to add 4.33
km/
sec to its velocity to take up an orbit at GEO. There the station
beams power to 8,000 stationary receivers across the visible face of
the Earth.

http://www.scribd.com/doc/31261680/Etdhlrlv-Addendum
http://www.scribd.com/doc/30943696/ETDHLRLV