The system helps you collect accurate data on your energy usage, which allows you to monitor your consumption better and develop more effective systems to manage your use and identify alternatives.
Many organisations see energy management as being part of a wider approach to managing their environmental performance. In that respect, ISO 50001 is the perfect partner for ISO 14001 Environmental Management System. However, whereas the latter helps you manage all of your environmental challenges, ISO 50001 focuses solely on your energy management and has a much bigger impact in this critical area. It may be that ISO 50001 is all you need.