The problem with fixed capacitor banks is that they need switchgears and can cause harmonic problems in the grid. Although Thysristor Switched Capacitors (TSC) don't have this problem they have to be installed together with a transformer and they are much more expensive (I guess). The question is if the TSCs are a better choice than capacitor banks when it comes to reduce losses and as a sources of reactive power in the transmission grid (>22kV). Also, what are other advantages or drawbacks of TSCs? I am interested solely in the solution with TSC, not with Static Var Compensator (SVC).