Why does energy usage change by home size?
Unsurprisingly, our data shows that larger homes use more energy. This is likely based on two main factors:
- More space to heat, cool, and light
- More residents are contributing to the overall usage
Heating and cooling are the largest consumers of energy in a home. The Energy Information Administration (EIA) found that heating and cooling, including water heating, account for 43% of residential energy consumption. Larger homes require more output from their HVAC unit to effectively heat and cool the space. Lighting is the second-largest energy consumer in residential homes, accounting for around 10.3% of annual usage.
Electricity usage is also influenced by the number of occupants in a home. Large homes typically have more occupants than smaller homes, and subsequently, more complex energy needs. Every device and electronic in your home, from cell phones to toaster ovens, uses energy. More individuals in a home mean more devices running simultaneously, which increases your overall power consumption.
Additional components to consider
There could be a few additional reasons your home uses more energy. Consider if any of these factors apply to you:
- Landscaping. Single-family homes typically have yards that require maintenance and contribute to your energy usage. If you have outdoor lights, a sprinkler system, or an outdoor kitchen, these will increase your kWh usage compared to someone who does not have a yard.
- Number of appliances. Consider how many appliances you have in your home. Many larger homes have numerous refrigerators and freezers, which require significant energy to run.
- Age of your home. Newer homes tend to be more energy efficient due to advancements in insulation, building materials, and windows. A newer home might have lower energy consumption than an aging one with outdated fixtures.
- Energy-efficient appliances. The type of appliances in your home can directly impact your energy bill. For example, an ENERGY STAR-certified clothes dryer uses 20% less energy than other models. Homes fitted with modern energy-efficient appliances could have lower consumption than homes with older appliances.
- Location. Certain locations across the country and within Texas have more intense microclimates. If you live in an area with severe weather, you could have higher energy consumption due to coping with the conditions.
Many pieces fit together and lead to the big picture of your energy consumption. While our energy experts believe home size is a driving factor, it’s not the only component to consider.