Solar power is an increasingly popular source of clean energy, but it’s important to do your research before making an investment. In Arizona, the state’s largest power supplier, APS, recently proposed a $460 million increase to its yearly revenue, which it says is necessary to maintain grid reliability and invest in clean power. While APS claims that this increase will only result in a modest cost increase for customers, it’s important to ask questions and do your due diligence before agreeing to any changes. Some important questions to consider include how the increase will vary among different types of households and whether or not past estimates of average bill increases have accurately reflected the experiences of individual ratepayers. It’s also important to be aware of any potential conflicts of interest and to carefully review any proposal documents, as they may not always provide all the necessary information.