There’s the kill-a-watt device by P3, which is widely available for about $25 per outlet. For central data collection it can be modified with the tweet-a-watt kits from Adafruit.
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There’s the kill-a-watt device by P3, which is widely available for about $25 per outlet. For central data collection it can be modified with the tweet-a-watt kits from Adafruit.