Granite City Electric typically offers a variety of payment methods to accommodate their customers' needs. Generally, they accept major credit cards such as Visa, MasterCard, American Express, and Discover. Additionally, they may accept payments via electronic check or bank transfer. For those who prefer in-person transactions, cash payments can often be made at their physical locations. It is advisable for customers to verify the specific payment options available at their chosen Granite City Electric location, as these may vary slightly from one branch to another. For the most current and detailed information regarding payment methods, it would be beneficial to review the appropriate section on the Granite City Electric website, where updated information on payment processing can be found.