Using readily available 350 F, 2.7V super-capacitors, a total
of 87 pieces would be required, comprising three parallel
strings of 29 each. At a cost of roughly $ 10 per piece, it
was decided for demonstration purposes, to limit the supercap
bank to 58 capacitors (i.e. two strings of 29 each) with a
storage potential of 74 kJ.