In general, energy efficiency is about using less energy to do the same thing. For example, a more energy-efficient refrigerator uses less electricity than a less efficient model.
Energy efficiency can also be about using the same amount of energy but doing more with it. For example, LED light bulbs are more energy efficient than traditional incandescent bulbs because they use less electricity to produce the same amount of light.
There are many ways to make your home more energy efficient. Some are simple and inexpensive, like turning off lights when you leave a room. Others, like upgrading to Energy Star appliances, may require a larger investment upfront but can save you money over time.
No matter what route you choose, increasing your home’s energy efficiency is a smart way to save energy and money.
Methods for checking your homes energy efficiency
Blower door testing
A blower door is a powerful fan that mounts into the frame of an exterior door. The fan pulls air out of the house, lowering the air pressure inside. This causes outside air to flow into the house through all the cracks and openings.
The airflow is measured with a manometer, and the results are used to calculate the home’s air tightness. The tighter the home, the less energy it will need to maintain comfortable indoor conditions.
Infrared thermography
Infrared thermography is a camera that takes pictures of heat energy. It can be used to find a home’s hidden insulation problems and air leaks.
An infrared camera can show whether there are any areas where heat is escaping from the home. These “hot spots” can be sealed to improve the home’s energy efficiency.
Duct Leakage Testing
Duct leakage testing is a way to measure how much air is escaping from your home’s ductwork.
Leaks in the ductwork can cause your heating and cooling system to work harder than it needs to. This wastes energy and can raise your utility bills.
A duct leakage test involves pressurizing the ductwork with a fan and then measuring the amount of air that escapes. The results of the test can be used to seal the leaks and improve the efficiency of your HVAC system.
Energy audits
An energy audit is an assessment of your home’s energy use. The auditor will look at how much energy you use and where you can save. They may also recommend improvements that could make your home more energy efficient.
A professional energy auditor can conduct energy audits, or you can do it yourself with an online tool like the ENERGY STAR Home Energy Yardstick.
The audit will give you a good idea of where your home is wasting energy and what changes you can make to improve efficiency.
Improving your home’s energy efficiency
There are many ways to make your home more energy efficient. Some are simple and inexpensive, like turning off lights when you leave a room. Others, like upgrading to Energy Star appliances, may require a larger investment upfront but can save you money over time.
Here are some tips to get you started:
Take advantage of daylight by opening shades and blinds during the day. This will help reduce your need for artificial lighting and lower your energy bills.
Air leaks can account for up to 30% of a home’s heating and cooling costs. Sealing leaks around doors, windows, and other openings can help improve your home’s energy efficiency.
Adding insulation to your walls, attic, and floors can help keep your home warm in the winter and cool in the summer. This will reduce your energy consumption and lower your utility bills.
Replacing old, inefficient appliances with new ENERGY STAR models can save you money on your energy bills. Look for the ENERGY STAR label when shopping for new refrigerators, dishwashers, washing machines, and other appliances.
LED light bulbs are more energy-efficient than traditional incandescent bulbs and can last up to 25 times longer. Switching to LED bulbs is an easy way to save money and reduce your energy consumption.
A HERS rating can provide some more insight into your energy efficiency
Home Energy Rating Systems (HERS) is used to rate the energy efficiency of homes. A home with a HERS score of 100 is considered average, while a score below 100 indicates that the house is more energy-efficient than average.
HERS ratings consider several factors: insulation levels, window type and efficiency, and heating and cooling systems.
A home with a lower HERS score will use less energy than a home with a higher score and will have lower utility bills.
In conclusion, there are a few key ways to make your home more energy efficient. These include using natural lighting, sealing air leaks, insulating your home, and upgrading to Energy Star appliances. Switching to LED light bulbs is also easy to save money and reduce energy consumption. Finally, a HERS rating can give you some insight into your home’s energy efficiency.
