<p>The focus of utilities worldwide has shifted towards energy saving, energy efficiency and demand flexibility, aiming for sustainable consumption and production. United Nations have declared ‘responsible consumption and production’ a sustainable development goal (SDG12). Energy sustainability and reduced GHG emissions can be achieved through responsible consumption, energy efficiency, adopting energy-saving technologies and policies. The proposed research investigated the energy-saving perspectives of Indian Generation Z (aged 15–24) and Millennials (aged 25–40). A comprehensive survey involving 556 Gen Z and Millennials explored their attitudes toward energy conservation, focusing on adopting energy-saving attributes, interest in emerging energy-saving technologies and policies, perspectives on global warming, willingness to sacrifice comfort, and the societal influences shaping their views. The findings revealed that 73% of Gen Z and 85% of Millennials prioritise ‘energy conservation. An in-depth understanding of these perspectives holds significant potential for crafting effective, future-ready energy strategies and policies for sustainable development. Acceptance rate of all energy-saving technologies, except device remote control, among the Gen Z and Millennials is above 75%, which is a positive sign towards sustainability. Gen Z and Millennials share similar opinions on the perspectives towards sacrificing comfort for energy saving, influence of society on energy conservation and energy-efficient technologies. They differ in perceiving energy-saving opportunities and energy-saving policies. The findings are validated using statistical tools and ANOVA.</p>