We celebrated a very peaceful and quiet candle-lit Earth Hour last night. We used our Sense Energy Monitor to watch consumption drop as we went around and turned off lights and appliances. We went so far as to turn off the fridge and the ERV (normally we would never turn these off, but we wanted to see how much energy they were actually using). We got as low as 83W of baseline load, which we attribute to the small plug loads made up of things like the modem and router, alarm clock, tv and receiver (plugged in but off). Our normal baseline is about 200-250W, which includes the ERV running 24/7.
We've had our new Sense Energy Monitor installed for nearly a month now, so I thought I'd share some first impressions.
First, a bit about the monitor we chose. Sense is a new product that has only been on the market for a few months, and isn't currently available in Canada (we ordered ours to Ogdensburg and drove down to pick it up). The purpose of the product is to monitor and track our electricity usage — and since our home is all-electric, it in fact tracks our total energy usage. The monitor installs with two clamps on the electrical mains leading in to the panel. While the install was quick and straightforward, I had the assistance of my electrician since the mains are always live (and if you're thinking of getting one, I'd recommend you do the same!). This type of electricity meter installed on the mains is fairly common, but what Sense claims to be able to do is to recognize different signatures and break out the electricity usage for each individual appliance in the house.
After install, the monitor takes several weeks or months before it learns everything in the house (for more information on how and why check out their website), but it will give you immediate feedback on total consumption. After nearly a month, it has learned our espresso machine, oven, and fridge and freezer lights. Even though this doesn't seem like much, it's been very interesting to look at the energy usage chart and figure out usage trends by deduction!
I'm hopeful the Sense Monitor will continue to add more devices soon, but in the meantime check out this chart showing from midnight to midnight last Friday. I've indicated some of the big spikes and what we figure they were.
24 hours of monitoring from March 17th