This blog post is not about retro computers, but I think it is quite interesting.
E.ON sent me one of their free home energy monitor devices. Great device – it tells me my current electricity usage and an estimate of my next bill. There is only one downside to the device, the supplied software doesn’t work on Mac OS.
But the lack of OS X was not an issue – I discovered some software called [email protected] . I installed the software running on my Linux server. The power meter is connected to my server via a USB to serial cable.
The systrem requirements for the system are quite minimal.
- Apache with PHP
Full requirements can be found on the [email protected] website.
Getting the software up and running was quite simple. My server already had all the required software installed. Within minutes, my server was receiving XML data from the energy monitor. Im running the most current version – 0.5
So, this is a graph of my electricity usage whilst I write this article. Click it graph to view it in more detail.
When I took this screen shot, the following devices were on in my house.
- Living room TV
- Virgin V+ box
- Virgin broadband modem
- Linksys router
- Apple TimeCapsule
- Phone chargers etc.
- Couple of lights (Low energy bulbs)
I’ve had the energy meter running for a few days now, and it has made me more conscious about the energy I am wasting. I just need to keep going on at the kids to turn their bedroom light off when they are not in the room! Easier than it sounds. 🙂