Solar energy is recognized as one of the most promising
alternative energy options. On sunny days, solar energy systems
generally collect more energy than necessary for direct use. Therefore,
the design and development of solar energy storage systems, is of vital
importance and nowadays one of the greatest efforts in solar research.
These systems, being part of a complete solar installation, provide an
optimum tuning between heat demand and heat supply. Hence way
that the domestic sector can lessen its impact on the environment is
by the installation of solar flat plate collectors for heating water