Oil prices globally have risen 500% since 1999. Ireland will have to pay €1.45bn in penalties next year and up to €4.3bn by 2012, as CO2 emissions are currently 23% over the agreed Kyoto allowances. Over the next 25 years, population and economic growth will cause global energy needs to increase by approximately 50%. Consequently, Energy Efficiency (EE) has become an essential part of most organisations. This paper reports on research-in-progress which explores the implementation of an Information System (IS), which is used to manage and monitor energy usage and implement energy efficiencies within several organisations. Adaptive Structuration Theory (AST) provides the conceptual model that helps to capture the longitudinal change process. There is currently no published research in the area of IS implementation investigating an energy management system using AST. Preliminary results show that stricter imperatives to adopt the IS will not necessarily lead to a successful system.