The Pacific Energy Center (PEC) offers educational programs, design tools, advice, and support to create energy-efficient buildings and comfortable indoor environments. Most of PEC's efforts are focused around commercial buildings; however, other departments offer advice and information for residential buildings. PEC services include assistance in daylighting and shading analysis of physical building models to optimize envelope design; advice on site orientation, glazing, shading, daylighting, and electric lighting systems; electric lighting system demonstrations and discussion of the pros and cons of different approaches to electric lighting, in particular buildings and building types; identifying applicable incentive programs for energy-related measures, including the Savings By Design program; and performance measurement tools for existing building systems evaluation and efficiency enhancements supported by protocols for tool use.