Division 5 DETERMINATION OF THE CO2 EMISSIONS REDUCTIONS AND THE DETERMINATION OF THE STATISTICAL SIGNIFICANCE

The difference between the average CO₂ emissions resulting from the ten tests performed in accordance with point 4 is to be multiplied with the average electric power savings determined in accordance with point 3 divided by the difference between the average electric power consumption resulting from the two tests performed with and without the additional electric load, i.e.:

$$C_{{\mathrm{iCO}}_2}=\left(M_{\mathrm{iC}}–M_{\mathrm{iNC}}\right)\times \frac{{\mathrm{\Delta P}}_M}{P_{\mathrm{iC}}-–P_{\mathrm{iNC}}-}$$

C_iCO2

CO₂ saving of the LED lights (g/km)

M_iC

CO₂ mass emissions with additional electric load (g/km)

M_iNC

CO₂ mass emissions without additional electric load (g/km)

ΔΡ_M

average electrical power saving by using LED (W)

P_iC

average electrical power consumption with additional consumer (W)

P_iNC

average electrical power consumption without additional consumer (W)

The statistical significance of the measured effects is to be determined by calculating the standard deviation of the measured CO₂ values (with and without the additional load) and by comparing the difference of the measured CO₂ values (with and without the additional load) with the standard deviation. The difference of the measured CO₂ values is to be more than 3 times the standard deviation.