Here's a good
video showing feature of an energy efficient home built in
Florida. It's not a solar home, but shows other aspects of the
design. The home meets the EPA's ENERGY STAR requirements for
homes.
The beginning
of the video concentrates on exterior and landscaping issues
which are more relevant to a Florida climate. Most of the
video about the actual construction of the home starts at
about 4:50.
Federal Tax Credits of up to $2,000 on a solar water heating system
and up to $2,000 on a photovoltaic solar electric system are now in
effect. Maryland has additional incentives. Ask your solar contractor
for details.