The SEE average score for this indicator w'as 1.8 (Figure 12.12), suggesting that all SEE economies have much work to do to facilitate optimal cross-border trade in electricity. The SEE CAO continues to develop rules to harmonise cross-border capacity calculations in electricity and is working with NRAs to determine the cause of lack of consistency and irregularities in some of the measures calculated. The WB6 initiative is relatively new but is already seen as an important policy driver for the economies.