Energy efficiency around the home is one of the easiest and cheapest ways to help conserve energy around the globe. Replacing aging appliances, re-insulating walls, and recycling are just a few of the ways everybody can get involved with conservation and eco-friendly habits. Though some of these may seem like they will require planning and extra money, others will help you save money on your monthly utility bills. Replacing old incandescent light bulbs with newer compact fluorescent bulbs can help save hundreds of dollars a year in addition to providing a longer lasting light bulb.
To illustrate the savings and to provide a workable plan for switching from incandescent bulbs to compact fluorescent lighting, the monthly and yearly cost of running both types of light bulbs in a moderate home with two inhabitants, has been calculated. By knowing the daily electrical usage of each light bulb and the current electrical rate, one can determine the monetary and energy savings for any period of time.
Using a particular household, 62 light bulbs were counted and their wattages noted. Each light fixture was then assigned a number representing the average number of hours it is active each day. By multiplying the hours the light fixture was active, by the total wattage of all the bulbs in the fixture and dividing by 1000, the total energy use per light fixture can be obtained. Multiplying the number of days in a month by the sum of all the energy required, will yield a monthly energy usage in kW/h. Multiply this number by the current electric rate to find the cost of running the lights in a low traffic household.
Daily energy required by all 62 light bulbs equated to be 5.87 kWh. At the current local electric rate of $.093 per kWh, one month would cost $16.61. The yearly rate would be $199.32. By replacing each light bulb with a compact fluorescent bulb, one could cut their daily usage down to 1.53 kWh, resulting in a monthly cost of $4.34, and a yearly cost of $52.03. The savings would be $147.30 per year and result in a $12.27 savings every month.
The example above assumes a low daily electrical usage, but even low electrical demand will return substantial monthly and yearly savings, plenty to pay for the cost of replacing all incandescent bulbs in a home. A family of four or more could easily save hundreds of dollars a year in lighting costs.
There are a few reasons that more families have not taken this step in their homes. Compact fluorescent light bulbs may seem expensive at first glance with a bundle price of around $3 to $4. At high demand, a new compact fluorescent may actually pay for itself in as little in one month as savings on your utility bill. Also, many people do not realize just how much electricity an incandescent bulb requires annually. Learning about the savings in electricity and utility bills may help to encourage more families to adopt this strategy in their homes.
A plan started 60 days ago, to replace five incandescent bulbs each month, has already resulted in lower energy bills for this particular household. Though, due to low usage, it will take a few months to realize the savings, each month will continue to add savings until all 62 lights have been replaced. Since the life of each compact fluorescent is longer than a standard incandescent, the savings will also be realized over a longer period of time.
Removing incandescent light bulbs and replacing them with compact fluorescent bulbs, can result in a 75% lower lighting bill over the course of a year. In addition to turning off electrical devices when they are not in use and replacing appliances with newer energy efficient models, taking small steps such as replacing light bulbs can save money on utility bills at an amazing rate.
Below shows the savings of a low traffic household.
Electric Rate 0.093
# of Days 30.42
Monthly Savings $12.27
Yearly Savings $147.30