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# LED's and the power to save - Part 2
- URL: https://www.adamsooley.ca/leds-and-the-power-to-save-part-2/
- Published: 2015-04-02T04:00:00.000Z
- Updated: 2024-07-30T17:36:29.000Z
- Author: Adam Sooley
- Tags: Home Improvement, Money Saving, Technology, #Import 2026-04-10 15:29

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](https://www.adamsooley.ca/blog/2015/04/02/leds-and-power-save-part-2#)) 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) |
| --------------- | -------------- | -------------------------------- |
| $20.00          | $240.00        | $2400.00                         |

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.