The term solar panel may refer either to a photovoltaic array, a
collection of solar cells used to generate electricity, or to a
flat solar thermal collector, such as a solar hot water panel, used
to generate solar hot water or otherwise collect solar thermal energy.
In both cases, the panels are typically flat, and a few meters in
height and width, and are ideally sized for easy installation, and
are priced so that they find typical use in domestic or light industrial
applications. The are idela for the conservation of energy.
Solar thermal panels are more economically viable at the moment
than solar photovoltaic panels. Recently there has been a resurgence
in development towards large scale energy production in parts of
the world with significantly high insolation levels; solar panels
are the primary component of most solar power generating facilities.