If a payment to Tucson Electric Power Co is late, it is important to address the situation promptly to avoid late fees or service interruptions. The first step is to check the official website for information regarding payment options and late fees, which can help clarify your specific situation. Tucson Electric Power Co may offer various payment plans or assistance programs for customers who are struggling to make payments. It is also advisable to consider making a partial payment if possible, as this may help to reduce potential penalties. In addition, reaching out to Tucson Electric Power Co for options specific to your account is often beneficial. Customers may find useful resources and contacts on the company’s website. Taking these proactive measures can help manage the late payment effectively.