Moral Duty and Inner Drive Double the Power of Energy-Saving Predictions at Work

Why do some employees diligently switch off lights, unplug chargers, and shut down computers at the end of the day while others walk away without a second thought? A new study published in Discover Sustainability suggests that the answer lies less in what colleagues or managers expect and more in what employees believe is morally right and what they personally find satisfying. Researchers led by Yadgar Momenpour and Shahla Choobchian of Tarbiat Modares University in Tehran, working with colleagues at Shiraz University in Iran and Martin Luther University Halle-Wittenberg in Germany, set out to test whether the most widely used psychological model of human decision-making could be upgraded to better explain energy conservation intentions in the workplace.

The framework at the heart of the study is the Theory of Planned Behavior, or TPB, a model developed by social psychologists that has dominated behavioral research for decades. In its classic form, the theory proposes that a person’s intention to perform a behavior is driven by three factors: attitude, which captures how favorably the person evaluates the behavior; subjective norm, which reflects perceived social pressure from important others; and perceived behavioral control, which measures how easy or difficult the person believes the behavior to be. Intentions, in turn, are considered the most immediate psychological antecedents of actual behavior. Applied to energy conservation, the model asks whether employees who view saving energy as beneficial, feel encouraged by people whose opinions they value, and believe they have the resources and opportunity to act are more likely to intend to conserve.

While the TPB has been applied extensively to energy-saving behavior among university students, the authors identified a striking gap: comparatively little research has examined other university stakeholders, particularly faculty members and administrative staff. This matters because universities are large, energy-intensive organizations filled with laboratories, offices, lecture halls, and computing facilities, and their employees make countless small decisions every day that collectively shape the institution’s energy footprint. Understanding what drives those decisions among the people who occupy these buildings for years, rather than for the short span of a degree program, could unlock cost-effective strategies for reducing organizational energy consumption.

The study was conducted in a context where energy is subsidized, meaning that direct financial incentives to conserve are limited. This setting is theoretically important. In countries or organizations where electricity prices are kept artificially low, the usual economic levers that encourage conservation are weakened, and psychological drivers may carry proportionally more weight. The researchers reasoned that in such subsidized-energy contexts, the standard TPB variables might not tell the whole story, and that additional constructs drawn from moral psychology and motivation science could fill the explanatory gap.

To test this, the team extended the classic model with two constructs. The first is moral norm, sometimes called personal norm, which captures an individual’s sense of ethical obligation to act. In this study, moral norm was measured through items asking whether employees felt it was their moral duty to switch off unnecessary lights and devices at the end of the working day, whether such actions were part of their ethical code, whether they felt obligated to prevent colleagues from leaving equipment running, and whether they experienced guilt when failing to do so. The second addition is intrinsic motivation, the drive to perform a behavior because it is inherently satisfying or chosen freely rather than externally rewarded. Employees were asked whether they reduced energy use because they had chosen to, because they believed it beneficial, and whether they felt pleasure and satisfaction when turning off unnecessary equipment.

The results were dramatic. The original TPB model, containing only attitude, subjective norm, and perceived behavioral control, explained 30 percent of the variance in employees’ energy conservation intentions. That is a respectable figure by behavioral science standards, but when the researchers added moral norm and intrinsic motivation to the model, the explained variance rose to 54 percent, a near-doubling of predictive power. In statistical terms, the two new constructs accounted for nearly a quarter of all variance in intention beyond what the classic variables captured, demonstrating that the psychological machinery behind workplace energy conservation is substantially richer than the standard model assumes.

Equally revealing was which variables mattered in the extended model. All constructs except subjective norm were significantly associated with energy conservation intention. In other words, employees’ own positive evaluations of saving energy, their confidence in their ability to act, their sense of moral obligation, and their intrinsic motivation all predicted stronger intentions to conserve, but the perceived expectations of influential others did not. The authors are careful to interpret this nuance. Rather than concluding that subjective norms are universally unimportant, they argue that the influence of social pressure may be contingent upon organizational and contextual conditions. In a subsidized-energy environment where conservation is not a salient social cause, the expectations of colleagues and family may simply carry less weight than personal conviction.

The measurement instruments themselves offer a window into the concrete behaviors at stake. Energy conservation intention was assessed through specific plans for the coming week: turning off office lights when leaving an empty room, unplugging a laptop charger once the battery is full, switching off a fan when departing, and suggesting energy-saving practices to colleagues. Attitude items framed these same actions as important, helpful, beneficial to the environment and the university, and responsible. Perceived behavioral control probed whether conservation methods were difficult, whether employees could turn off unnecessary appliances, and whether they had the resources, time, and opportunity to do so. This behavioral specificity grounds the abstract psychological constructs in the mundane, repeated choices that determine a building’s daily electricity draw.

The practical implications extend well beyond academia. For managers, planners, and sustainability officers, the findings suggest that campaigns built purely on social messaging, telling employees that others expect them to save energy, may underperform in contexts like the one studied. Instead, interventions that activate moral reasoning, for example by framing energy waste as an ethical failure with consequences for the institution and the environment, and those that cultivate intrinsic satisfaction, perhaps by giving employees autonomy over their conservation choices and recognizing the personal value of their actions, are likely to be more effective. Because moral norms and intrinsic motivation are internal states, they can potentially be nurtured through communication, education, and workplace culture rather than through expensive pricing mechanisms or infrastructure upgrades, making them attractive tools for cost-effective demand reduction.

Theoretically, the study contributes a more context-sensitive framework for understanding workplace conservation behavior. It demonstrates that in subsidized-energy settings where direct financial incentives are limited, moral norm and intrinsic motivation substantially enhance the explanatory power of the TPB and explain additional variance in intentions beyond that accounted for by subjective norm. The research, approved by the Research Ethics Committee of Tarbiat Modares University and conducted with informed consent under the Declaration of Helsinki, received no specific external funding. As universities and other large organizations worldwide confront rising energy costs and climate commitments, the message from this work is clear: the path to a lower-carbon workplace may run not through peer pressure but through conscience and the quiet satisfaction of doing the right thing, one switched-off light at a time.

Subject of Research: Psychological predictors of workplace energy conservation intentions among university faculty and staff using an extended Theory of Planned Behavior model

Article Title: Expanding the theory of planned behavior to better predict energy conservation intentions in the workplace

Article References: Expanding the theory of planned behavior to better predict energy conservation intentions in the workplace. (n.d.). https://doi.org/10.1007/s43621-026-04572-0

Image Credits: AI Generated

DOI: 10.1007/s43621-026-04572-0

Keywords: energy conservation, Theory of Planned Behavior, moral norm, intrinsic motivation, workplace behavior, university faculty and staff, subjective norm, perceived behavioral control, subsidized energy, structural equation model, prosocial behavior, Discover Sustainability