What is the ERC (European Research Council)? Find more information here:

-ERC website
-Euresearch: the Swiss guide to European research & innovation

Q: Synergy grant: Do I have to submit my proposal to a dedicated panel, similar to the Starting, Consolidator, and Advanced Grants?

No, the structure of the panels is not pre-defined and will be decided dynamically in relation to the proposals received. The Synergy Grants are evaluated in three steps after a single submission of the full proposal. At each step the structure of the panels may be re-configured to care for best expertise. The evaluation is based on the expertise of 80 panel members and chairs.