Energy monitoring is one of the important applications arising from research in Internet of Things (IoT). Smart meters allow us to obtain periodic updates of energy consumption data that can be analyzed to provide important insights into energy usage. However, design limitations in smart meters only allow the monitoring of the aggregated consumption data instead of real-time consumption data. We develop a prototype device for sensing in smart homes using Wi-Fi enabled communication. Wi-Fi was selected as the technology of choice due to high availability in homes, and issues about energy consumption were ignored due to availability of a permanent power source. Preliminary results from comparing the energy measurement from the prototype device with an off-the-shelf device using statistical techniques are presented in this paper.