This environmental impact report (EIR) has been prepared by California Energy Commission (CEC) staff to evaluate the potential environmental effects of the development of the Lafayette Data Center (LDC) and the Lafayette Backup Generating Facility (LBGF), referred to together as the project (project), in compliance with the California Environmental Quality Act (CEQA), the CEQA Guidelines, the Warren-Alquist State Energy Resources Conservation and Development Act, and California Code of Regulations, title 20, chapter 5, article 5 (Small Power Plant Exemptions).