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<br /> <br />29 <br />Figure 13. Community-wide emissions from buildings in 2030 <br />In the near term, the community’s carbon footprint could be further reduced or eliminated by using carbon- <br />free electricity sources – such as on-site solar and/or utility green tariffs, as described in Section 6: <br />Renewable Electrical Energy Strategies. Since all of Minnesota’s electricity must be carbon-free by 2040, an <br />all-electric community should have no carbon emissions from building energy use after that year. <br />9. Draft Sustainability Design Guidelines <br />The development of sustainability design guidelines (Appendix I) for RCC supports the JDA's vision to create <br />a climate-forward development by providing a set of rigorous requirements for the developers of <br />buildings/parcels within the community to follow. These guidelines will support the RCC energy vision <br />through requirements for third party rating certifications, building energy efficiency and electrification, on- <br />site renewable energy generation, connection to district energy, embodied carbon reduction, support for <br />electric vehicle infrastructure, and tracking of performance metrics. Although a final version of the guidelines <br />was outside the scope of this project, a comprehensive draft of this team's recommendations was developed <br />and is ready for further discussion with stakeholders. <br />The following key requirements are included in the draft: <br />• Each building and tenant improvement to achieve LEED BD+C New Construction certification at the <br />silver level or above. <br />• All buildings and tenant improvements shall achieve 50% better energy efficiency than the MN Energy <br />Code, certification from the DOE's Zero Energy Ready Home program, or Phius CORE certification as <br />a Passive House. <br />• All buildings shall be all-electric and shall not use any fossil fuels. <br />0 <br />5,000 <br />10,000 <br />15,000 <br />Business as Usual Scenario 1: District <br />Energy - Entire <br />Development <br />Scenario 2: District <br />Energy - Town <br />Center <br />Scenario 3: <br />Decentralized <br />Geothermal <br />me <br />t <br />r <br />i <br />c <br /> <br />t <br />o <br />n <br />s <br /> <br />C <br />O <br />2 <br />Utility Gas <br />Electricity