Carbon Credits (Carbon Farming Initiative—Aggregated Small Energy Users) Methodology Determination 2015
48Standard deviation of change in mean daily emissions for control group
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48 Standard deviation of change in mean daily emissions for control group
The standard deviation of the change, between the relevant pre‑treatment period and a measurement period in the reporting period, in the mean daily emissions of greenhouse gas at sites in the control group in a population in the project, 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 7):
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where:
sd means the standard deviation of the change, between the pre‑treatment period and the measurement period, in the mean daily emissions of greenhouse gas at sites in the control group, 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.
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 change, between the pre‑treatment period and the measurement period, in the emissions of greenhouse gas at site s, in tonnes CO2‑e, adjusted for any difference between those periods in the number of days for which there is data, about measured energy consumption at the site, that is used for the purposes of this Part. This is worked out using equation 11.
DM,s 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 change, between the pre‑treatment period and the measurement period, in the mean daily emissions of greenhouse gas at sites in the control group, in tonnes CO2‑e per day, worked out using equation 9.
NC means the number of sites included in the control group for all or part of the measurement period.