def METHOD_NAME(self):
    if self.normalization == "gross floor area":
        titley = 'Thermal Energy [kWh/m2]'
    elif self.normalization == "net floor area":
        titley = 'Thermal Energy [kWh/m2]'
    elif self.normalization == "air conditioned floor area":
        titley = 'Thermal Energy [kWh/m2]'
    elif self.normalization == "surface area":
        titley = 'Thermal Energy[kWh/m2]'
    elif self.normalization == "building occupancy":
        titley = 'Thermal Energy [kWh/p]'
    else:
        titley = 'Thermal Energy [MWh]'
    return titley