Last October I replaced 38 #halogen pot lights in our new house with low wattage LED's and got quite a significant decrease in hydro usage (LED's and the power to save part one) but these 38 bulbs did not even account for 50% of the bulbs in the house. Recently Save on #Energy introduced some spring coupons to be applied to different power saving items that you can replace in your house, one of these coupons were $5 off #LED #bulbs, single or multi packs. Canadian Tire had a sale that had the $5 off coupon applied at time of sale for qualifying items. One of these items were single LED's for $7.99 with out the discount or $2.99 with the discount, which worked out to about $4.00 per bulb tax included and coupon applied.
I purchased 45 of these bulbs in total so I would have enough to replace all remaining bulbs inside and outside for a total initial cost of $180.00. It is a large upfront investment for bulbs but if they have the same or better savings as I have seen with the 38 halogen bulbs than it will be worth while.
It has now been one week since replacing these bulbs. Though it is a small sample size, I decided to crunch some numbers from our hydro usage of the last week compared to random samples throughout the last year. As expected there has been a noticeable reduction in the hydro usage.
|Hourly Reduction||Daily Reduction||Estimated Monthly Reduction||Estimated Yearly Reduction|
|0.10 kWh||2.4 kWh||72 kWh||864 kWh|
These numbers work out to about a 12% reduction of hydro usage per month. When you tally up the cost of hydro as well as other fees included in the bill at a cost per kWh, we will be looking at an additional savings of between $20 - $30 a month. Add this over a year and we are looking at
|Monthly Savings||Yearly Savings||Bulb Lifetime Savings (10 years)|
These estimates do not include the increase of hydro usage over the coming years, but the savings are sure to be much more, making the initial $180.00 investment well worth it.