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City of Arden Hills Chapter 13 Zoning Code <br /> <br /> <br />Section 1320 – District Provisions <br />Adopted: November 13, 2006 <br />Page 20 of 24 <br /> <br />3. Incorporation of renewable energy features, including solar, wind <br />energy or geothermal systems, into the building or site. This may include <br />using the Army’s water treatment process to develop geothermal energy <br />generation capability and/or the use of land and buildings for solar or wind <br />energy generation. <br /> <br />4. Energy Efficiency: A minimum of a thirty-five (35%) percent increase <br />in overall building energy efficiency as compared to the Minnesota Energy <br />Code. Energy efficiency is to be defined by the use of purchased <br />(generated or refined at a separate site) or on-site-generated fuels <br />consumed per square foot of occupied space. Calculations can take into <br />account the use of the following: <br /> <br />a) On-site generated renewable energy, including photovoltaic, wind, <br />or hydro generation of electricity; passive solar systems using solar <br />heat or light; geothermal source; or other use of renewable fuels <br />displacing the use of non-renewable fuels in the building’s systems. <br /> <br />b) Efficiency of all building mechanical systems that burn, convert, or <br />transform the energy in natural gas, electricity, oil, coal, steam, or <br />purchased heat or cold in any form. <br /> <br />c) Calculations shall not include manufacturing or mechanical <br />processes for which the State of Minnesota has not set a minimum <br />standard. <br /> <br />B. Stormwater management. Low-impact development techniques shall be <br />employed within each phase of the PUD Master Plan, to include, but not <br />limited to: <br /> <br />1. Use of rain gardens and other methods for bioretention of stormwater <br />runoff. <br /> <br />2. Use of bioswales and similar features designed to trap pollutants and <br />silt in runoff. <br /> <br />3. Integration of green roofs and roof gardens on buildings where <br />feasible to control rainwater and other benefits. <br /> <br />4. Use of pervious pavement for parking areas, walkways, plazas and <br />other paved surfaces. <br /> <br />5. Development of internal courtyards with plants and water features. <br /> <br />6. Design of stormwater collection areas as park features and public <br />amenities.