What factors influence electricity use?

Several factors can influence your monthly electric use. These factors can be measured by WPS, and we summarize them on your monthly bill.

Billing days
WPS makes every effort to read your meter once a month. The number of days between the monthly meter readings may vary slightly — it won't be exactly 30 or 31 days each time. Your bill shows the number of billing days included and how that compares with the same month last year. If fewer than 26 days or more than 35 days are included between meter reads, your bill is prorated to reflect the length of the billing period.
Average daily temperature
Weather plays a significant role in how much energy you use. During a cold winter when more heating is required, energy use is higher. During a mild winter, energy use is typically lower. The average daily temperature shown on your bill compares this month with the same month last year.
Cooling degree days
A measure of the need for air conditioning (cooling) based on temperature. Cooling degree days are calculated by subtracting 65 degrees Fahrenheit from the average daily temperature.
Heating degree days
A measure of the need for heating based on temperature. Heating degree days are calculated by subtracting the average daily temperature from 65 degrees Fahrenheit.
Percent warmer or cooler
Your bill shows what percentage warmer or cooler it was this month compared with the same month last year. This percentage is calculated based on the number of degree days this year compared with last year.
kWh used and average kWh/day
Kilowatt-hours (kWh) are a measure of how much electricity you've used. Your bill shows how many kilowatt-hours of electricity you used this year compared with last year — and the average number of kilowatt-hours used each day.

WEC Energy Group