A survey of US cement customers found that the reliability and continuous operation of the plant are their highest priorities (Coito et al. Shutting down a plant to install new equipment can jeopardize the integrity of the kilns. A study of the Swedish pulp and paper sector found the same thing (Thollander and Ottoson 2008; Figure 5.3). A majority of energy-intensive firms surveyed by UNIDO regularly monitored energy use at both the plant and the individual process levels, and both managers and engineers considered themselves well informed about energy-efficiency opportunities (UNIDO 2010h).