Figure 5From: Make or buy: IT-based decision support for grid imbalance settlement in smarter electricity networksModel savings (a) and savings sensitivity to barriers for aggregation level 12 (b). Blue line: Model savings relative to Base case and sensitivity to aggregation level. Savings sensitivity to the barrier setting for the aggregation level 12 = 3 hours (Base case vs. Model case). Green low deviation, yellow medium deviation, red high deviation from optimumBack to article page