Do you know how big your CO2 footprint is for the electrical energy you consume?
I did not know either, so I found this how to calculate. Result: close to half a kilogram (401gr) per kWh, using the 2020’s German mix.
Is this much? Let’s go along my own consumption: My house consumes 10kWh per day, almost constant, with 4 people living in it. Each kWh creates an anual CO2 footprint of 0.0365 tons: 0.401kg/kWh/ 1000(kg into tons) * 365 / 4 (people) = 0.0365. So, my personal CO2 footprint for electricity is about 0.365 tons p.a. Curious to hear how big your footprint is.
Read your electricity consumption – but how?
The all-inclusive solution is a Shelly 3EM. Fits into your fuse cabinet, reads power for all 3 phases, forwards by Wifi / MQTT. Interesting solution also if your energy meter is outside the Wifi range. Versions for 1 phase exists as well.
Other solutions – various types of energy meters
Spinning disc – ferraris
Electrical meters with LED pulse output
if your electrical meter is a bit younger, it might look like this. There should be a LED, blinking 1000 times per kilowatt-hour.
It goes without saying that all devices connected to your electricity meter are now included into your CO2 footprint: Air condition, electrical heating, charging your e-car. Cool, or?
Side effects: What else can you do once you have your power consumption online?
identify your minimum power consumption: Which power in Watts is your house never under? Sounds like a very low thing, but keep in mind that each single Watt consumes 8.8kW hours a year. More on my success journey later here
Learn how your power consumption looks like over the day. It is easy to optimize once you know it – and once you compare yourself with your friends.
Community: How can you help?
Tell us about your electrical meter and the solution that works for you
Tell us about your learnings and life hacks how you lowered your energy consumption