Every three years, Arizona Public Service (APS) and Tucson Electric Power (TEP) conduct a comprehensive study predicting the amount of energy their customers will need in order to determine the energy resources required to meet those needs. This study, known as an Integrated Resource Plan (IRP), is a common exercise that utilities undertake in many states. While different parts of the country have different electricity needs and varying resources available, we at Advanced Energy United (United) believe all IRPs should include a comprehensive assessment of the advanced energy resources available, a competitive procurement process, and full incorporation of any additional policies that will change resource needs or costs.