The potential benefits of a pan-Scotland investment in street lighting LEDs are significant. An investment of £298m could generate potential savings of £1.3bn over a 20-year operational period, before accounting for financing costs. These savings decrease to £900m if funded through PWLB (assumed rate of 3.47%) and £780m if funded through private finance (assumed rate of 6%). The savings are generated from energy savings (62%), maintenance savings (36%), and carbon emissions reduction (5%). The key assumptions of the analysis include the adoption of LED technology, the use of existing lanterns, and the implementation of a 20-year operational period. Next steps include further analysis of the specific costs and savings associated with each authority, as well as the development of a detailed business case for a pan-Scotland implementation.