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Our customers frequently ask us how much their power bill will increase after their new system is installed. Nowadays we're only installing LED systems so our response is, "You will not even notice it." However, back when we installed incandescent systems the power requirements were much greater. While the number was relatively low compared to air conditioning units and the like, we would always provide cost estimates. This article will show you how to calculate the cost of power for landscape lighting. If you don't want to do the math we've included a handy calculator so you can quickly determine the cost for your system (or any other electrical component for that matter).
(total-wattage ÷ 1000) x hours-per-day-used x 365 x your-kwh-cost = Annual cost for your system.
Add the total wattage of your bulbs/fixtures. Divide your total wattage by 1000 to covert to kilowatts. Now you have your kilowatt per hour (kwh) consumption. Multiply your kilowatt per hour consumption by the number of hours per day your lights will be on. This gives your daily kilowatt consumption. Next multiply your daily kilowatt consumption by 365 to get your annual kilowatt consumption. Finally multiply your annual consumption by your cost for power (in the US the average is about $.11/kwh¹).
We installed a typical LED front-yard system this week so lets calculate the annual electrical cost for this customer. The system has 11 3-watt fixtures and two 2-watt fixtures so that totals 37 watts. Divide that number by 1000 and we see that her usage will be .037kwh. This customer will run her lights for an average of 8 hours per day so her daily kilowatt consumption will be .296 kilowatts. Her system runs every day so multiplying by 365 we get an annual usage of 108.04 kilowatts. She lives in Atlanta and the average kwh charge by her power provider is $.12/kwh. So multiply her annual usage by the rate and we see her annual cost will be $12.96.
If you are not into the math and just want a quick answer use our handy calculator below.
US Energy Generation. Click for details. This article is intended to give you a general guideline for the power usage of various lighting options. There are many other considerations when determining the optimum fixtures for your environment. If you would like to go into more detail we are available for discussion. We offer free consultation and design we'd love an opportunity to work with you. Our contact information is below or you may visit our FREE CONSULTATION page to schedule an appointment. Call 770-521-2805 or email contact@abulouslighting.com
1. Electric Power Monthly, October 2014 ~ US Energy Information Administration.
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Absolute Lighting installed my outdoor flood lights 2 years ago and they are beautiful! They did such a great job that I used them to setup and take down the Christmas lights for the past 2 years. I would highly recommend them. Frank always responds to questions and automatically puts me on the schedule for set up and take down of the Christmas Lights.
We love Abulous lighting and have been using them for years They are very responsive and professional and will come back no questions asked for any follow up work Good pricing and highly trustworthy Frank, the owner, is a true stand up guy. I recommend without reservation
Frank and the team at Abulous were great to work with. They came out and retro-upgraded some previous lighting that we had done a few years back and made it look as seamless and continuous as possible. They also worked with us on the best (& most economical) way to light up a hard to reach area of our yard. They also followed up with us after we had another group of workers "disturb" some of the lighting wires and came back out and fixed everything back up again. Very friendly, dependable local resource who do great work. Highly recommend.
After reviewing multiple companies we contracted with Abilous Lighting to create outside accent lighting for our home, backyard patio, walkways, & fire pit. Their ideas and design were the best! It was a pleasure working with Frank Hasty, who did the design, and his crew of Brandon & Rusty who performed the work. All were excellent to work with. We are very happy with Abulous Lighting.