The analysis in WRI's report "Over Heating: Financial Risks from Water Constraints on Power Generation in Asia" found that new power generation capacity will be increasingly located in areas already considered to be water stressed or scarce (the power sector requires a steady supply of water for cooling and generation to maintain loads and avoid disruptions). India is the country of most concern for water constraints, as shown here, with 73% of capacity (62% of existing and 79% of new capacity) of the three largest power generation companies -- NTPC, Tata Power, and Reliance Infrastructure (including Reliance Power) -- located in water scarce or stressed areas.