An Open Source energy consumption monitoring tool for D-Link DSP-W215 "Smart" outlets.
This uses some of the undocumented features of the CGI interface provided by DSP-W215 outlets to periodically read power consumption information, and feed it into an emoncms instance.
All DSP-W215 related code is in dspLog.py. EmonFeeder.py is just the emoncms related facilities.
Note: While this does work, D-Link could very well break it at any time with a product update.
Really, Just buy Ubiquiti mPower monitor/control plugs. They actually have their API documented (unofficially, but by actual Ubnt employees): https://community.ubnt.com/t5/mFi/mPower-mFi-Switch-and-mFi-In-Wall-Outlet-HTTP-API/td-p/1076449
The hardware is similar cost, and the Ubiquiti hardware have a full-stack for on-premises monitoring/graphing. The standard is no cloud!