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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Building footprints were edited by Zach Bodenner in fall 2021 in preparation for this project. Then data was transferred to GPI to create this feature class. </SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-size:12pt">From GPI:</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-size:12pt">"To calculate rooftop solar potential, a set of suitability criteria were applied and calculated:</SPAN></P><UL STYLE="margin:0 0 0 0;padding:0 0 0 0;"><LI><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-size:12pt">No solar may be built within 6 feet of the edge of the building rooftop (per OSHA and solar maintenance / installation requirements)</SPAN></P></LI><LI><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-size:12pt">Building slope (pitch) and aspect (orientation to the sun) were both calculated. For slope, rooftops with a no slope were calculated as “flat” rooftops, which have a slightly larger suitable minimum square foot area for installation than roofs with a pitch. For aspect, any rooftop area oriented northeast, north, or northwest were all considered not suitable (too few direct hours of sunlight). </SPAN></P></LI></UL><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-size:12pt">Once analyzed, the resulting solar insolation raster was used to calculate total solar potential"</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN /></P><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-size:12pt">Abbreviations:</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-size:12pt">W - Watt</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-size:12pt">KW - Kilowatt</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-size:12pt">MW - Megawatt</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-size:12pt">GW - Gigawatt</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-size:12pt">WH - Watt Hour</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-size:12pt">KWH - Kilowatt Hour</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-size:12pt">MWH - Megawatt Hour</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN /></P><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-size:12pt">Attribute Information:</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>SolGenWH: Solar generation potential (in Wh), accounting for a system panel efficiency of 13% and that the kWh generation to kW capacity ratio was 1300</SPAN></SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>SystemCost: Estimated dollar value for system based on size, for Minnesota average per watt cost for solar panel &amp; installation at $2.74; estimate assumed that only 75% of max system capacity was going to be installed per system, or for larger systems that economies of scale would provide per watt savings</SPAN></SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>CO2Avaoided_lbs: Estimated avoided CO2e emissions in lbs (from Xcel 2017 community energy reports, which estimates 802 lbs / MWh when solar replaces conventional grid)</SPAN></SPAN></P><P><SPAN /></P></DIV></DIV></DIV>

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