Power of Attorney for Nathaniel Fick

This filing is an Exhibit 24, a Power of Attorney granted by Nathaniel Fick to Michael Silberman and other authorized officers of Eos Energy Enterprises, Inc. The purpose of this Power of Attorney is to allow the appointed individuals to execute and file Form 3, 4, or 5 reports on behalf of Nathaniel Fick, as required by Section 16(a) of the Securities Exchange Act of 1934. This authorization covers all necessary actions to complete, execute, and file these reports with the SEC and any relevant stock exchanges. The Power of Attorney remains in effect until Fick is no longer required to file these reports or until it is revoked in writing. The filing is dated March 26, 2026.