The list of systems identified in the Part 1 Proposal and the forecast quantity submitted in the Part 1 Proposal form are the basis of the Part 2 Proposal submitted by the Bidder. While the Bidder may choose not to provide bid assurance collateral for all of its identified systems and its forecast quantity, and while the Bidder may choose not to submit a Bid on a particular system, after the Part 1 Date the Bidder may not modify the systems it presented in the Part 1 Proposal or the number of RECs associated with any one system.