An energy audit is a good idea if you want to get a better idea of how your business is doing from an energy efficiency perspective.  Combined with a sustainability report, it will give you clear actions to take in order to improve efficiency and reduce your carbon footprint. This can be really useful, not only in helping you reduce costs but it will also help you to inform a robust sustainability policy which can be shared with supply chain, making your business more attractive to new customers and increasing your competitive.