Table 1.

Household characteristics for control and treatment groups

Characteristics	Control mean	Treatment mean	t	P value
Household size*	2.8	2.8	−0.72	0.47
% households renting*	13.7	13.9	−0.27	0.79
% households with electric heating†	33.1	33.3	−0.27	0.78
No. of rooms†	6.5	6.5	−1.71	0.09
Household income (thousands of dollars)†	101.7	102.0	−0.32	0.75
% households with low payment history‡	12.1	12.5	−0.50	0.62
% households with low income subsidy‡	1.6	1.9	−1.01	0.31
% Whites*	47.2	47.4	−0.25	0.81
% Blacks*	31.1	31.0	0.08	0.94
% Asians*	13.5	13.1	0.90	0.37
% Hispanics*	11.5	11.7	−0.83	0.40
Summer 2010 electricity use‡, kW⋅h/d	42.0	41.8	0.36	0.72
Fall 2010 electricity use‡, kW⋅h/d	28.5	28.8	−0.74	0.46
Winter 2011 electricity use‡, kW⋅h/d	40.9	41.9	−1.19	0.23
Spring 2011 electricity use‡, kW⋅h/d	29.9	30.0	−0.32	0.75

^*Source: 2010 Census data (block-level information).

^†Source: 2010 Census Data (tract-level information).

^‡Source: data provided by utility company (household-level information).