Stage 2 Design and Specification – Knowing the areas of your buildings that are using the most energy and carbon is one part of the solution, the next stage is often the trickiest. Here at GNZ we help you develop the decarbonisation measures highlighted in our stage 1, or any other energy reports (including ESOS), to ensure your low carbon destination is reached. Where possible, initial plans are developed to a point where specialist contractors are able to provide pricing for works.