If you're interested in non-realtime energy monitoring (and speak German), check out my skunkworks project from way back: www.stromverbrauch-online.de
You sign up, regularly put in your current meter readout and get an estimate of your monthly and yearly electricity bill. No hardware required. I've gotten a number of signups since and some people really get religious about putting in their data - some do it every other day!
Getting your energy consumption down can be an interesting sport, see the Tweet-A-Watt.
You sign up, regularly put in your current meter readout and get an estimate of your monthly and yearly electricity bill. No hardware required. I've gotten a number of signups since and some people really get religious about putting in their data - some do it every other day!
Getting your energy consumption down can be an interesting sport, see the Tweet-A-Watt.