Sustainability is a journey and includes a variety of aspects. 4 typical pillars are environmental, social, cultural and management practises (the taxonomy can vary according to authors, eco-labels or management choice). In turn, each of those 4 pillars includes a variety of areas. We will focus on energy by discussing a practical framework to address it. This approach can help identify, organise and coordinate suitable initiatives to improve the environmental and financial performance of your asset. A light overview of the framework will also be enriched by some examples of opportunities for each of its components.