Pedersen currents in the ionosphere have a similar production mechanism to Hall currents, have a similar equation form for determining conductivity and have a similar conductivity profile and conducitivity dependence on various factors. The Pedersen and Hall conductivities are maximised during daytime or in auroral regions at night, as they depend on plasma density, which in turn depends on auroral or solar ionization. The conductivities also vary by about 40% over the solar cycle, reaching a maximum conductivity around solar maximum.