Unfortunately I needed to guest post for TSH on this one. He was kind of busy, and I didn’t want to leave you on the edge of your seats any longer. If you are wondering what I am talking about, check out this post, where we made some changes to our electricity consumption (stopped using the chest freezer and replaced most of the light bulbs with CFLs) and hypothesized how much we would save. TSH guessed $6.13. I guessed $8.
Now, being the scientists we are, we love results. Especially significant results. And these results did show a significant (although not exactly well-defined) difference. Ha!
The short answer is that our bill was $32.03. (194 kWh for a 31-day month = 6.26 kWh/day). This is the lowest our electric bill has ever been since we have lived here. Not bad. The question of how much we saved was harder to answer, because we don’t have a good control. Our use fluctuates, not even including the months we have air conditioner. For example, if you compare last month’s bill ($36.17) to this month’s bill, it appears we only saved $4.14. However, if you compare last November’s bill ($41.65) to this November’s, then it appears like we saved $9.62.
To help you visualize it better, here’s the data from the past year in kWh/day. The months are named by the month the electric use ended in. For example, the month named November is actually mid-October through mid-November.
Now here is the data in bills:
In an effort at a better control, I averaged the previous bills, excluding months December (extra family for Thanksgiving and Christmas lights), June, July, August, and September (Air conditioning and less efficient refrigerator, etc). That came out to 7.94 kWh/day or a bill of $39.91. Based on that, we saved $7.88. Anyway, our conclusion is that we saved somewhere from $4-$8. A rate of $48-$96 saved per year just by switching out some light bulbs and not being so spacious with our freezer use. Sorry that is so inconclusive, but I think we can safely say we will have at least an extra $50 at the end of a year. Maybe we’ll have a follow-up post at the end of the spring when we can average several of the new use months to compare to the old use months, especially because we can’t tell if TSH or I was more accurate on our estimates. Sadly, I think he is more accurate regarding just the freezer and CFLs, since I have been extra careful lately about only turning on lights if I really need them, but maybe I have still helped us save $8 in general.
Did any of you try to cut down on your electric bills after the last post? What was your result?
Oh, and seriously this time, the next post will be on what we decided to do about PG’s Christmas presents.