Table 7: Estimated Average Savings among the Discontinued Sub-Groups during Evaluation Periods1 (Savings relative to the control energy use) group’s Discontinued Jan. 2011 Nov. Aug. 2013 Nov. – – Jan. 2011 Mar. Apr. 2012 Jul. 2013 – – Treatment 2014 (Treatment & 2014 2012 (Treatment) (Post-Treatment) Sample Size Post Treatment) (Post-Treatment) Discontinued Monthly 1.72* 1.75* 1.49* 0.71 1,670 Treatment Effect (3.56%) (3.62%) (3.70%) (1.66%) Discontinued Persistence 0.54* 0.76* 0.75* 0.09 3,979 Treatment Effect (1.11%) (1.57%) (1.86%) (0.23%) Discontinued Quarterly 0.76* 0.86* 0.83* 0.61* 9,856 Treatment Effect (1.56%) (1.79%) (2.06%) (1.27%) 15.505 Sample Size Overall2 35,000 35,000 35,000 35,000 n/a 75% Explained Variance 82% 69% 62% 1 Daily savings in kWh and percentages. Recall that all discontinued households were of electricity prior to receiving reports. “high users” 2 The remaining 19,495 households in the overall sample size are the discontinued control group households. * Statistically significant at 90% confidence.
Table 7: Estimated Average Savings among the Discontinued Sub-Groups during Evaluation Periods1 (Savings relative to the control group’s energy use) Discontinued Treatment Sample Size Jan. 2011 – Nov. 2014 (Treatment & Post Treatment) Jan. 2011 – Mar. 2012 (Treatment) Apr. 2012 – Jul. 2013 (Post-Treatment) Aug. 2013 – Nov. 2014 (Post-Treatment) Discontinued Monthly Treatment Effect 1,670 1.72* (3.56%) 1.75* (3.62%) 1.49* (3.70%) 0.71 (1.66%) Discontinued Persistence Treatment Effect 3,979 0.54* (1.11%) 0.76* (1.57%) 0.75* (1.86%) 0.09 (0.23%) Discontinued Quarterly Treatment Effect 9,856 0.76* (1.56%) 0.86* (1.79%) 0.83* (2.06%) 0.61* (1.27%) Sample Size Overall2 15.505 35,000 35,000 35,000 35,000 Explained Variance n/a 75% 82% 69% 62% 1 Daily savings in kWh and percentages. Recall that all discontinued households were “high users” of electricity prior to receiving reports. 2 The remaining 19,495 households in the overall sample size are the discontinued control group households. * Statistically significant at 90% confidence.
Evaluation%20of%20Persistence%20in%20Eversource%20Behavior%20Pgm%20(R32),%20review%20draft,%2012.19.15.docx