[adafruit] wrote in to let us understand that the Tweet-a-Watt is now offered in kit form. While the plans have been offered for a while, a kit is a welcomed addition. The kit doesn’t include the Kill-a-Watt monitor, however rather the XBee adapters as well as parts needed to make it speak to your Arduino or computer. The kit is $90, while the Kill-a-Watt can be discovered for approximately $20.