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TCAAP Energy Integration Resiliency Framework <br />Policy White Paper – Unique Opportunities for the TCAAP Site <br /> <br /> 17 <br />transmission system (minimal, but tangible), there is a heat affected zone around the district heating <br />pipes. This heat affected zone follows a triangular shape down and away from the district heating <br />pipes. Locating the water main in the heat affected zone reduces the potential for freezing, allowing <br />for shallower installation for both the water main and the sanitary sewer. <br />3.7. Snow and Ice Melt Systems <br />Snow and ice melting (SIM) systems use low-grade heat from a variety of potential sources (solar <br />thermal, ground source heat pumps, waste heat recovery, etc.) to provide a safe and reliable way to <br />keep street and sidewalk surfaces clear of snow and ice, without the need for environmentally <br />damaging salts or intensive maintenance efforts. SIM systems circulate water mixed with antifreeze at <br />approximately 100 degrees Fahrenheit through small tubes located under surface of the sidewalk or <br />pavement to heat the surface, preventing the accumulation of snow or ice. The water then drains <br />naturally into the storm drain system without the harmful contaminants associated with traditional <br />snow removal and storage. A SIM system could provide a significant financial benefit to the City due to <br />the reduced maintenance requirements, as well as a defining feature for the development.