The TED 5000 series of smart meters allow home energy monitoring in real time. You can even view your electricity usage from any Internet-connected device, including your mobile phone. This device is compatible with Google PowerMeter. Kits start at $199.95
Support The Gadgeteer: The Gadgeteer’s main sources of revenue are advertising and affiliate links in articles like this one. Even though we may receive compensation, we always give our honest opinions about our experiences with each product.