Louisiana has the cheapest residential electricity at 12. 44¢/kWh—31% below the national average. For commercial rates, North Dakota leads at just 7. com's new Energy Marketplace allows commercial energy shoppers to compare up-to-date and reputable electricity providers, plans, and prices easily. com is a business electricity price comparison tool that lets you make your business energy comparison online and shop for commercial electricity prices in Houston, Dallas and anywhere in Texas. Shop the same way you do for your home! Use our tools to enter your zip code and shop. . What is the cheapest energy plan for a small business? The cheapest energy rate will differ based on business type and energy usage.