What is EnerJar?

      
The EnerJar is an easy-to-build device that accurately measures the power draw of electrical appliances. The EnerJar was the winner of the Greener Gadgets design competition. The design is still being optimized, but preliminary schematics and source code can be found on this site by following the "Hardware" and "Software" links to the left.

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Progress page and more

I just added a Progress page where we will keep track of what still needs to be done.

Also, we've gotten a few questions about the possibility of a 240-volt international version of the EnerJar. To make the EnerJar work on 240 volts, all that is needed is to change the value of a single resistor. The code will be exactly the same, because of the calibration that we are working on.

In response to another question, at the moment, we are not planning on selling prebuilt EnerJars. We may reconsider after the design is completed and we begin sourcing parts, but if you want an EnerJar but have no soldering skills, we recommend making friends with an electronics geek. They are pretty handy to have around.

Welcome to EnerJar.net!

Well, we've finally launched a real website! As you can probably tell, we're not totally done with the site but we have posted preliminary schematics and source code. We will be updating the site as we solidify more of the design. If you want to stay updated on our progress, subscribe to our RSS feed or leave a comment below saying that you want to be on our mailing list. If you run into any issues with the site, email: admin {at) enerjar [dot} net.