; and (2) participation by public utilities in cybersecurity threat information sharing programs. (c) Incentive-Based rate treatment Not later than 1 year after the completion of the study under subsection (b), the Commission shall establish, by rule, incentive-based, including performance-based, rate treatments for the transmission of electric energy in interstate commerce by public utilities for the purpose of benefitting consumers by encouraging— (1) investments by public utilities in advanced cybersecurity technology; and (2) participation by public utilities in cybersecurity threat information sharing programs. (d) Factors for consideration In issuing the rule pursuant to this section, the Commission may provide additional incentives beyond those identified in subsection (c) in any case in which the Commission determines that an investment in advanced cybersecurity technology or information sharing program costs will reduce cybersecurity risks to— (1) defense critical electric infrastructure (as defined in section 215A(a)) and other facilities subject to the jurisdiction of the Commission that are critical to public safety, national defense, or homeland security, as determined by the Commission in consultation with— (A) the Secretary of Energy; and (B) appropriate Federal agencies; and (2) facilities of small- or medium-sized public utilities with limited cybersecurity resources, as determined by the Commission. (e) Ratepayer protection Any rate approved under the rule issued pursuant to this section, including any revisions to that rule, shall be subject to the requirements of sections 205 and 206 that all rates, charges, terms, and conditions— (1) shall be just and reasonable