Complete the paragraph by choosing the appropriate words given in the brackets:
(marginal, array,cell, panel, string, current, power station, potential difference).
Many solar panels are connected in series and in parallel to generate required.........and .............solar.........is the basic unit in solar electric plant, many solar cells come together to form a solar........many solar panels connected in series form a solar............and, many solar strings connected in parallel form a solar..........As we can obtain as much electrical power as needed, they are used in applications which need........power(e.g. calculators that run on solar energy) to ........of MW capacity.