Earlier this year it dawned on me that the energy usage in my home had climbed dramatically when the weather got cold. This was somewhat puzzling to me because nothing had changed since it got colder so the hunt for the energy hog began.
Many of you are familiar with the Kill A Watt by P3 International (as shown above). This nifty device monitors your electricity usage and it even gives you estimates of how much money the device connected to the Kill A Watt will cost you to operate. I don’t have a Kill A Watt but I have a similar device from another company, called the PowerAngel. I used my PowerAngel monitoring device in order to go through my house and find how out much energy various devices in my house were using. This process can take a fair amount of time because, in order to get an accurate reading of electricity usage you may need to leave the device plugged into the monitor for an extended duration. For example, in order to get an accurate idea of electricity usage I left my entertainment center plugged into the PowerAngel for about a week. This gave me an accurate reading of how much energy is used per week; from this I can compute the cost and usage for any duration of time I wanted.
When going through my house I monitored my entertainment center, refrigerator, computer and many other devices. Along the way I found items that were large electricity users and I tried to find ways to reduce consumption. For my entertainment center I installed a Smart Power strip. I configured the Smart Power strip so that the TV and satellite receiver have power constantly and the TV and VCR draw zero power when the TV is off. For my bedroom entertainment system I configured it in a similar way. These configurations reduced the amount of electrical draw by up to 50%. I found my refrigerator to be comparable to most Energy Star rated refrigerators even though it is not Energy Star rated. The majority of my other devices in my home are Energy Star rated.
After going through my house I didn’t find any devices that seemed to be drawing an over abundance of electricity so, the hunt for the electrical hog was still on. My next location for my audit was the garage. I have a small shop that I keep above freezing during the winter. This shop is heated using an electric ceramic heater that is controlled using its built-in thermostat. After leaving my energy monitor on the ceramic heater for just a day I realized that the heater was using HUGE amounts of electricity. This ceramic heater was the reason behind my electric bill increase during cold months. The ceramic heater’s thermostat was not properly working which was causing this unit to run almost all the time. I quickly replaced this with a newer electric ceramic heater that i had in my home which, greatly reduced the electricity usage.
While doing the self-audit in my garage it also dawned on me that I should do something about an old freezer that looks like it is from the 70s. The freezer has got to go. I was debating to either replace it with a new Energy Star unit or to downsize. I am currently going to be taking the route of eliminating the old freezer without replacing it. This should reduce my energy usage substantially.
With roughly 97% of my lighting in my house already being fluorescent, there is no significant effecientcy gain that can be achieved here. This leaves HVAC and water heating as my next targets. Since I am heating my home using a wood stove, the only HVAC upgrade that I am currently looking at doing is my central air. I have looked at several different options and I am left liking either a heat pump system or a standard AC unit that is very effecient. To improve how effeciently my central air is operating and when it is operating, I have been researching several different Energy Star rated programmable thermostats as well.
In addition to all of the HVAC related items, I have also been considering a new water heating system. Currently I am using a gas water heater that is about 10 years old. If I decide to go the heat pump cooling route, which I doubt due to cost, I would also install a water heater that used the same system. Due to the cost of heat pump systems I am realisticly looking at either a gas condensing water heater or a solar water heating system. These systems will offer plenty of warm water as well as use less energy.
It is crucial that you learn the value of conserving and that you try to take steps to do so. I am currently in the beginning stages of doing that more extensively. For example, this past month the electric bill totaled 863kWh of electricity, which is 30 kWh per day. The same month last year 35 kWh were used per day. A 5 kWh per day reduction in electrical usage is a great start, I was very pleased with it. I hope to continue reducing the monthly electrical usage to point that my monthly home usage is at least 800 kWh but ideally 750 kWh. The more energy that we are able to reduce the better because it reduces the use of fossil fuels and the negative impact on our environment.
Any ideas or questions, feel free to leave a post.