Against the backdrop of the U.S. Inflation Reduction Act (IRA) and widened peak-valley electricity price gaps, Intelligent Home Energy Management Systems (iHEMS) have become pivotal for households and businesses to cut costs and seize policy dividends. This article outlines iHEMS’s pre-setup compliance checks, three core configuration steps, and parameter tuning balancing policy adherence, safety, and profitability. It also covers post-setup optimization strategies, risk avoidance, and tangible benefits—such as 15%-30% household electricity savings—while highlighting alignment with grid standards and clean energy goals.