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how does PV work?
direction, inclination
the inverter
solar maps
makes sense?
economical?
do it yourself kits
installed base Europe
grants

building code

pennywise
gauging = knowing
daily production
monthly production
electricity saved
what can 1kWh do 4U?
ABC of photovoltaics
test panels
photogallery
links
records
solar thermal installation
PV packages
other solar energy
on hydrogen
waves and tides