Abstract. Using solar energy in photovoltaic power plants
is an important method of electricity generation from renewable
sources. Its potential is vast and technically easy to utilise. At
present, photovoltaic power plants are the fastest-growing
renewable energy source (RES) in the Czech Republic. Their
installed capacity reached 1390 MWp (December 2010). Only
in the last two years more than 1300 MWp was put in
operation. This rapid development of photovoltaic sources is
having a negative effect on the electric power system control.
One option for mitigating this effect is to store the energy
generated by photovoltaic in times of excess power in the grid
and supply it to the grid when required, i.e., during peak periods
of the daily load curve. There are numerous different storage
technologies. The hydrogen system can be used to provide for
storage of electric power in large amounts as well. This paper
describes the state-of-the-art in the field of our research into
solar energy storage in the Technical University of Ostrava.