41Standard deviation of mean daily emissions for control group

41  Standard deviation of mean daily emissions for control group

  The standard deviation of mean daily emissions of greenhouse gas at sites in the control group in a population in the project in a measurement period in the reporting period, weighted by the number of days in the measurement period for which there is data, about measured energy consumption at sites in the control group, that is used for the purposes of this Part, is worked out using the formula (equation 2):

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where:

sd means the standard deviation of mean daily emissions of greenhouse gas at sites in the control group in a measurement period, weighted by the number of days in the measurement period for which there is data about measured energy consumption at sites in the control group, that is used for the purpose of this Part.

s means a site in the control group.

fs means the number of days in the measurement period for which there is data, about measured energy consumption at site s, that is used for the purposes of this Part, as a proportion of the sum of all the days in the measurement period for which there is data, about measured energy consumption at sites in the control group, that is used for the purposes of this Part, as follows:

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Es means the emissions of greenhouse gas at site s in the measurement period, in tonnes CO2‑e, worked out using equation 6.

Ds means the number of days in the measurement period for which there is data, about measured energy consumption at site s, that is used for the purposes of this Part.

EC means the mean daily emissions of greenhouse gas at sites in the control group in the measurement period, in tonnes CO2‑e per day, worked out using equation 4.

NC means the number of sites included in the control group for all or part of the measurement period.