Fig. 3: Scores of technical attributes, profitability, and environmental impacts for the low-hanging fruit plants.
From: A plant-by-plant strategy for high-ambition coal power phaseout in China

These plants belong to the bottom 50% for each of all three dimensions evaluated, which is indicated by the red dots (bottom half plants of the environmental score) within the bottom-left pink area (bottom half plants of the technical and profitability scores).