However, the life-cycle costing advantages do not reside in energy savings alone. In fact, with current energy prices (in 2012) the energy argument can be difficult to sustain in eco - nomic terms. The financial benefits lay elsewhere – in water use savings, health, productivity, enhanced asset value and image. What is important is to consider all the potential bene - fits, to put financial value on them, and to compare perform - ance of green buildings with their less than green counterparts. Then a picture emerges that can carry weight within the business world. There are two important ramifications. The first is that since energy efficiency does not provide financial justification on its own, the building should be designed from many sustainable perspectives – not just energy ones. The business model is supported by the secondary benefits to energy-efficient design. Hence, there should be good integra - tion of the ecological and energy approaches, and these should recognise that perform ance means designing with user pers - pectives in mind.