Due to increasing costs associated with carbon emissions there is a growing business case to develop a well considered energy strategy for brown and greenfield facilities. This strategy could consider any number of solutions such as: replacing older fossil fuel driven power generation equipment with a higher efficiency alternative, to consolidate the power generation loads with a high efficiency power island, or to energize greenfield projects with low carbon intensity grid power. The drivers for this decision are case specific and can have significant implications on any design. Considerations around the stability and availability of the grid as well as the source and the associated carbon intensity of the grid power and the replacement of existing waste heat recovery systems with alternate process heating schemes must be evaluated to develop a rigorous power strategy. TDE can support a power audit to assist with a well-developed strategy to provide reductions in cost of ownership of an installation.