Regulated water utilities distribute safe drinking water and manage wastewater treatment for residential, commercial and industrial customers under government-set tariffs. Water is the most essential utility service of all — demand is completely non-discretionary and stable regardless of economic conditions or weather. The regulatory compact is similar to other regulated utilities: the company invests in infrastructure and regulators allow it to earn a defined return through customer rates. Water infrastructure in most developed markets is aging and requires substantial ongoing investment, which regulatory frameworks must support through rate increases — creating a sustained capex cycle that drives regulated asset base growth and earnings. Water scarcity in specific regions is increasing the strategic importance of water infrastructure and attracting regulatory attention to both conservation and supply reliability investment. For investors, regulated water utilities offer the most defensive earnings characteristics in all of regulated utilities, with essentially no demand risk, stable regulated returns and long-term infrastructure investment growth drivers, balanced against interest rate sensitivity from the capital structure required to fund infrastructure ownership.