Most smart homes waste nearly a quarter of their energy on devices left running when nobody needs them, and many popular energy apps care more about collecting your data than cutting your bills. This episode breaks down how to build a smart home energy system that actually saves money while keeping your information private. Chelsea Miller explains the three essential layers of energy management, compares the major wireless protocols, and reveals which devices work locally without sending your habits to the cloud. Whether you're starting from scratch or fixing a system that never delivered on its promises, this guide covers the technical details that matter.

• Smart energy management has three layers that work together. Think of it like a team: monitors watch how much power you use, smart plugs and switches control when things turn on  ...