Comment Re:Maybe currentcost (Score 1) 172
I own a CurrentCost ENVI. The current cost units do have basic device-level drivers for OSX but the interface software required to upload the data to Google Powermeter is (sadly) Windows only. It's one of the biggest gripes in the CurrentCost message forums but the developers appear complacent on the subject.
As such I've been forced to run Windows 24/7 via Parallels with the sole task of running the Google Powermeter application in Windows instead of OSX. Frustrating.
Frustration aside, I do like the unit, but I discovered shortly after my purchase that it only partially supports tiered pricing - it does support two tiers (day and night) with selectable rates and times, but our local utility uses three tiers with each coming into effect at various times of day - off peak, mid peak, and full peak. The ENVI has no ability to be programmed to support this - what I did was program it for the "average" price between mid=peak and on-peak so that it is at least relatively close on the price display.
I'm hoping eventually GPM will also add more options - it supports only *one* tarrif rate, making it even less useful for calculating pricing. It does graph the information nicely though.