Table 1 -Sustainability Scoring Score Assessment carried out Demonstrated need for the project 5 = Highest Yes and need for the project is clearly demonstrated and it is the best option. 3 = Medium Yes and some degree of uncertainty in the need for the project or whether this project is the best option. 1 = Low Yes and significant uncertainty in the need for the project or whether this project is the best option. 0 = Zero No or need for the project not demonstrated or it is clearly not the best option.