Is Rainwater Harvesting Used to Reduce Energy for Water Supply?

As urban populations swell and climate patterns shift, one critical question emerges: Can rainwater harvesting meaningfully reduce energy demands in water supply systems? Traditional centralized water networks consume 4-8% of global electricity—equivalent to all aviation emissions—to pump, treat, and distribute water. This energy burden increases by 40% when transporting water over 100 km, a common practice in water-stressed regions.