Use comprehensive energy audits to benchmark a plant's energy use against industry averages and reveal energy-saving opportunities that walk-through exercises can miss. Audits involve simple techniques, like reviewing utility bills, to complex ones—such as analyzing historical energy use and energy-efficiency investment options. Local utilities and non-profit organizations sometimes offer free or low-cost energy audit services. In addition, measuring the energy use of individual production and support processes provides invaluable information on where to focus your efforts. Process heating systems and motor-driven equipment are two of the best places to look first for substantial energy savings. The Additional Resources Section at the end of this chapter provides recommendations for other excellent resources and tools to help—including a guide to programs that offer free audit assistance to small and medium-sized manufacturers.