The higher costs of energy have increased organizations' interest in searching for ways to reduce energy use. Typically, organizations have utilized structural or operational changes to decrease their energy use. Another approach involves the energy-conservation behaviors of an organization's employees. Drawing on value-belief-norm theory (Stern, 2000b), we examined the individual-level factors related to energy-conservation behaviors at work among employees of a large state university. Using path analysis, we found that environmental personal norms predicted self-reported energy-conservation behaviors, as well as behavioral intentions. Environmental personal norms also mediated the relationship of environmental worldviews with self-reported energy-conservation behaviors, as well as behavioral intentions. Implications for theory and organizational energy-conservation interventions are discussed.