I’ve been working on a new home energy monitor since my old one stopped working after the new net meter went in.  It’s easy enough to send some data up to pachube.com, but there are a lot of neat sites out there which have gotten started helping consumers track their home energy use:

• Google Powermeter
• Microsoft Hohm
• Mapawatt
• Wattzon
• Pachube, and others

Each has their own API, and most of them work with some subset of the commercial energy monitors out there:

• Ted 5000
• CurrentCost Monitor
• Efergy
• Brultech ECM-1240
• Blue Line Innovations
• Eco-eye
• The Owl
• Various Homemade devices

But do you really want to pick your device based on the sites they support, or vise versa?  And wouldn’t it be nice if a single device could report to any or all of the above monitoring sites, each with their various strengths and weaknesses?

It’d be possible to make an energy-data-multiplexer which can accept inputs from any of the above devices, store the basic usage in a database (just feed name / timestamp / power value), and from there send it out to any/all of the sites which accept such data.  It’s just a Simple Matter of Programming ™ to write the interfaces on both sides…. right? :)

Anyone have experience with this kind of thing?