The cost of electricity per month for customers is impacted by the amount of energy consumed and the size of the home or apartment. The average electricity in a Texas apartment will cost $89/month while a house will cost $154/month. The electricity cost per month can also fluctuate depending on the season and the size of your family. Square Footage Avg. Monthly Electricity Consumption on per KWh Avg. Electricity Cost Fewer than 1,000 773.67 $92.84 1,000 – 1,4999 1,022.08 $122.65 1,500 – 1,999 1,208.67 $145.04 2,000 – 2,499 1,195.75 $143.49 2,5000 – 2,999 1,272 $152.64 3,000 or greater 1,453.75 $174.45 Number of Household Members Avg. Monthly Electricity Consumption on per KWh Avg. Electricity Cost 1 Member 819.58 $98.35 2 Members 1,103.25 $132.39 3 Members 1,189.58 $142.75 4 Members 1,394.92 $167.39 5 Members 1,425.92 $171.11 6 or More Members 1,519.92 $182.39 Data sourced from the same source used for the other calculations: https://www.eia.gov/consumption/residential/data/2015/c&e/pdf/ce5.3a.pdf.