Site_Pair  Break_Even_EUR_tCO2                     Dominance_Regime
Site A vs Site B           122.664499      0 to 122.66 (Site A least-cost)
Site B vs Site C           169.149048 122.66 to 169.15 (Site B least-cost)
Site A vs Site C           145.906774         > 169.15 (Site C least-cost)