Yes, Seller may invoice Buyer immediately following REC Delivery provided that Seller may only submit one invoice per Contract Quarter under the SPV Contract. For REC Deliveries made in a Contract Quarter, the Seller is required to invoice for such REC Deliveries by the 20^th Day of the immediately succeeding Contract Quarter. For example, if Seller completed its REC Delivery for the Contract Quarter of January through March 2016 on March 15, 2016, Seller is required to invoice Buyer by April 20^th, but may invoice Buyer as early as March 16^th.