About District Energy
District energy (DE) systems centralize the production of thermal heating or cooling for multiple buildings located within a district, neighborhood, or campus.
How District Energy Works

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Centralized thermal plants can efficiently produce hot water, chilled water, and steam from a variety of energy sources, including renewable sources. From these centralized plants, hot and/or chilled water (or steam) is transported through an underground system of insulated pipes to individual buildings, where it’s used for space heating and cooling, and domestic hot water heating.
District Energy for Low-Carbon Cities (IDEA)

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District energy systems are highly flexible and scalable. And they provide significant environmental and economic benefits compared to conventional HVAC systems.