Yes, you will receive monthly invoices from Nexamp once your project is up and running. This invoice will reflect charges for the net metering credits allocated on your monthly utility bill. Your first invoice will always be mailed to you in paper form, after that they will be online only within your personal customer portal account, unless specified otherwise. Nexamp accepts payment through the customer portal or by check. You can save payment methods, a credit card or direct bank account, in the portal. There is also an option to set up auto pay.