Dr L Ramesh: Empowering Students as Sustainability Ambassadors for Scalable Energy Conservation and Climate Action

A sustainability lesson becomes more powerful when it leaves the classroom and reaches the household. This idea is at the heart of Dr L Ramesh’s work, which uses students not simply as learners of sustainability but as agents of behavioural change. As Founder and President of The Institution of Green Engineers (IGEN), a United Nations Department of Economic and Social Affairs (UN DESA)-indexed civil society organisation, he has developed a model in which students take sustainability messages directly into their communities.

The flagship #ENSAV9MANTRAS initiative, implemented through the IGEN ENERGY99CHALLENGE, is built around a straightforward proposition: one student can engage 99 households and encourage them to adopt practical energy-saving habits. The model seeks to address a familiar challenge in sustainability—the distance between policy awareness and everyday behaviour. Rather than relying solely on conventional awareness campaigns, it places students in the role of sustainability ambassadors who can establish direct relationships with households.

The approach is deliberately practical. Students encourage participating households to adopt simple, evidence-based energy conservation practices aligned with SDG 7 on affordable and clean energy, SDG 12 on responsible consumption and production and SDG 13 on climate action. The emphasis is on translating sustainability concepts into actions that people can understand and incorporate into everyday life.

Dr Ramesh’s role extends beyond conceiving the programme. He has developed the training framework, outreach strategy and monitoring systems needed to support consistency, accountability and measurement. This combination of education, community engagement and data-driven monitoring gives the initiative a structure that goes beyond awareness creation.

Its scale provides an indication of the model’s reach. More than 33,000 households have participated, with approximately 75 per cent adopting recommended energy-saving practices. The initiative has resulted in measurable reductions in electricity consumption, carbon emissions and water use. At the same time, students involved in the programme have developed leadership, communication and sustainability competencies, making the environmental intervention an educational experience in its own right.

The programme has also encouraged participating institutions to strengthen their own sustainability structures. Dedicated sustainability clubs and SDG-aligned academic frameworks have helped embed the initiative within institutional systems rather than treating it as a temporary campaign. The result is a model that operates simultaneously at student, household and institutional levels.

Its collaborative character further expands its potential. Students and faculty members work alongside university leadership, local communities, professional bodies, non-governmental organisations, industry experts and international academic partners. This network creates opportunities for both research and community engagement, strengthening the relationship between higher education and the societies it serves.

The “One Student, 99 Households” approach is particularly notable for its simplicity. It does not depend on an elaborate technological infrastructure or a high-cost intervention. Its strength lies in using educational institutions and existing community relationships to create a chain of sustainability ambassadors. The initiative has been recognised internationally as UN SDG Action #48555, while its flexible design allows it to be considered for use across schools, colleges and universities in different geographical and institutional settings.

For Dr Ramesh, the larger lesson is that education can become a mechanism for measurable environmental action when learners are given the opportunity to apply what they know. By connecting classroom learning with household behaviour, the model develops sustainability leadership while delivering practical environmental outcomes. The experience suggests that the reach of a university need not end at its campus boundary. Students can carry sustainability into homes and communities, turning education into a multiplier for climate action and responsible consumption.