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Parcelization (Tile Layer)

Published by California Energy Commission | State of California | Metadata Last Checked: July 28, 2025 | Last Modified: 2024-03-25T16:16:28.000Z
This dataset is available for download from: Parcelization (File Geodatabase)Parcelization, a measure of size and density of parcels in a localized area, is a development feasibility factor that is used in evaluating substations’ ability to support new utility-scale resources in long-term energy planning. A statewide dataset of parcel boundaries are used to develop this index. The parcels are converted into a 90-meter raster, containing values of a unique identifier reflective of Parcel APN. A focal statistics tool is used to count the number of unique parcels within a 0.5 mile radius of each parcel. This output is provided here and is an intermediate output to the final parcelization map. Users who wish to use this information to produce the final map should overlay parcel boundary data and extract the mean raster value within each parcel.  The map is limited to the area considered with solar technical resource potential after a minimum set of land-use screens (referred to as the Base Exclusions) has been applied.   More information on the methods developing this dataset as well as the main use of this dataset in state electric system planning processes can be found in a recent CEC staff report and workshops supporting the resource-to-busbar mapping methodology for the 2024-2025 Transmission Planning Process. 

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Complete Metadata
@type dcat:Dataset
accessLevel public
contactPoint 
                                            {
  "fn": "GBlossom_CAEnergy",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:gis@energy.ca.gov"
}
description <div style='font-family:&quot;Segoe UI&quot;, &quot;Segoe UI Web&quot;, Arial, Verdana, sans-serif; margin:0px; padding:0px; clear:both; color:rgb(0, 0, 0); font-size:12px;'><p style='margin-top:0px; margin-bottom:0px; padding:0px; font-kerning:none; background-color:transparent; color:windowtext;'><span style='font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; margin:0px; padding:0px; font-size:11pt; font-variant-ligatures:none !important;'><span style='font-family:inherit; margin:0px; padding:0px; background-repeat:repeat-x; background-position:left bottom; background-image:url(&quot;data:image/gif;base64,R0lGODlhBQAEAJECAP////8AAAAAAAAAACH5BAEAAAIALAAAAAAFAAQAAAIIlGAXCCHrTCgAOw==&quot;); border-bottom:1px solid transparent;'>This dataset is available for download from: </span></span><a href='https://caenergy.maps.arcgis.com/home/item.html?id=99dd4edeb6fb47d99b80023b96c9ec87' style='color:rgb(0, 97, 155); text-decoration-line:none; font-family:inherit;' target='_blank' rel='nofollow ugc noopener noreferrer'>Parcelization (File Geodatabase)</a></p><p style='margin-top:0px; margin-bottom:0px; padding:0px; font-kerning:none; background-color:transparent; color:windowtext;'><span style='font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; margin:0px; padding:0px; font-size:11pt; font-variant-ligatures:none !important;'><span style='font-family:inherit; margin:0px; padding:0px; background-repeat:repeat-x; background-position:left bottom; background-image:url(&quot;data:image/gif;base64,R0lGODlhBQAEAJECAP////8AAAAAAAAAACH5BAEAAAIALAAAAAAFAAQAAAIIlGAXCCHrTCgAOw==&quot;); border-bottom:1px solid transparent;'><br /></span></span></p><p style='margin-top:0px; margin-bottom:0px; padding:0px; font-kerning:none; background-color:transparent; color:windowtext;'><span style='font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; margin:0px; padding:0px; font-size:11pt; font-variant-ligatures:none !important;'><span style='font-family:inherit; margin:0px; padding:0px; background-repeat:repeat-x; background-position:left bottom; background-image:url(&quot;data:image/gif;base64,R0lGODlhBQAEAJECAP////8AAAAAAAAAACH5BAEAAAIALAAAAAAFAAQAAAIIlGAXCCHrTCgAOw==&quot;); border-bottom:1px solid transparent;'>Parcelization</span><span style='font-family:inherit; margin:0px; padding:0px;'>, a measure of size and density of parcels</span><span style='font-family:inherit; margin:0px; padding:0px;'> in a localized area</span><span style='font-family:inherit; margin:0px; padding:0px;'>,</span><span style='font-family:inherit; margin:0px; padding:0px;'> is a development feasibility factor that is</span><span style='font-family:inherit; margin:0px; padding:0px;'> used in evaluating substations’ </span><span style='font-family:inherit; margin:0px; padding:0px;'>ability to support new</span><span style='font-family:inherit; margin:0px; padding:0px;'> utility-scale </span><span style='font-family:inherit; margin:0px; padding:0px;'>resources in long-term energy planning.</span><span style='font-family:inherit; margin:0px; padding:0px;'> </span><span style='font-family:inherit; margin:0px; padding:0px;'>A s</span><span style='font-family:inherit; margin:0px; padding:0px;'>tatewide </span><span style='font-family:inherit; margin:0px; padding:0px;'>dataset of parcel boundaries </span><span style='font-family:inherit; margin:0px; padding:0px; background-repeat:repeat-x; background-position:left bottom; background-image:url(&quot;data:image/gif;base64,R0lGODlhBQAEAPEDAABVzDNVzDNV/wAAACH5BAUAAAMALAAAAAAFAAQAAAIInC2QchYKQgEAOw==&quot;); border-bottom:1px solid transparent;'>are</span><span style='font-family:inherit; margin:0px; padding:0px;'> used to develop this index</span><span style='font-family:inherit; margin:0px; padding:0px;'>. The </span><span style='font-family:inherit; margin:0px; padding:0px;'>parcel</span><span style='font-family:inherit; margin:0px; padding:0px;'>s</span><span style='font-family:inherit; margin:0px; padding:0px;'> </span><span style='font-family:inherit; margin:0px; padding:0px;'>are converted </span><span style='font-family:inherit; margin:0px; padding:0px;'>into </span><span style='font-family:inherit; margin:0px; padding:0px;'>a 90-meter raster, </span><span style='font-family:inherit; margin:0px; padding:0px;'>containing</span><span style='font-family:inherit; margin:0px; padding:0px;'> values</span><span style='font-family:inherit; margin:0px; padding:0px;'> of a unique identifier reflective of</span><span style='font-family:inherit; margin:0px; padding:0px;'> Parcel APN</span><span style='font-family:inherit; margin:0px; padding:0px;'>. </span><span style='font-family:inherit; margin:0px; padding:0px;'>A</span><span style='font-family:inherit; margin:0px; padding:0px;'> focal statistics tool is used to count the number of unique parcels within a </span><span style='font-family:inherit; margin:0px; padding:0px; background-repeat:repeat-x; background-position:left bottom; background-image:url(&quot;data:image/gif;base64,R0lGODlhBQAEAPEDAABVzDNVzDNV/wAAACH5BAUAAAMALAAAAAAFAAQAAAIInC2QchYKQgEAOw==&quot;); border-bottom:1px solid transparent;'>0.5 mile</span><span style='font-family:inherit; margin:0px; padding:0px;'> radius of each </span><span style='font-family:inherit; margin:0px; padding:0px;'>parcel. This output </span><span style='font-family:inherit; margin:0px; padding:0px;'>is provided here </span><span style='font-family:inherit; margin:0px; padding:0px;'>and is an intermediate output to the final </span><span style='font-family:inherit; margin:0px; padding:0px; background-repeat:repeat-x; background-position:left bottom; background-image:url(&quot;data:image/gif;base64,R0lGODlhBQAEAJECAP////8AAAAAAAAAACH5BAEAAAIALAAAAAAFAAQAAAIIlGAXCCHrTCgAOw==&quot;); border-bottom:1px solid transparent;'>parcelization</span><span style='font-family:inherit; margin:0px; padding:0px;'> map</span><span style='font-family:inherit; margin:0px; padding:0px;'>. </span><span style='font-family:inherit; margin:0px; padding:0px;'>Users who wish to use this </span><span style='font-family:inherit; margin:0px; padding:0px;'>information</span><span style='font-family:inherit; margin:0px; padding:0px;'> to produce the final map should overlay parcel </span><span style='font-family:inherit; margin:0px; padding:0px;'>boundary </span><span style='font-family:inherit; margin:0px; padding:0px;'>data</span><span style='font-family:inherit; margin:0px; padding:0px;'> and extract the mean </span><span style='font-family:inherit; margin:0px; padding:0px;'>raster value within each parcel</span><span style='font-family:inherit; margin:0px; padding:0px;'>.</span><span style='font-family:inherit; margin:0px; padding:0px;'> </span></span><span style='font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; margin:0px; padding:0px; font-size:11pt;'> </span></p><p style='margin-top:0px; margin-bottom:0px; padding:0px; font-kerning:none; background-color:transparent; color:windowtext;'><span style='font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; margin:0px; padding:0px; font-size:11pt;'><br /></span></p></div><div style='font-family:&quot;Segoe UI&quot;, &quot;Segoe UI Web&quot;, Arial, Verdana, sans-serif; margin:0px; padding:0px; clear:both; color:rgb(0, 0, 0); font-size:12px;'><p style='margin-top:0px; margin-bottom:0px; padding:0px; font-kerning:none; background-color:transparent; color:windowtext;'><span style='font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; margin:0px; padding:0px; font-size:11pt; font-variant-ligatures:none !important;'><span style='font-family:inherit; margin:0px; padding:0px;'>The map is limited to the area considered with </span><span style='font-family:inherit; margin:0px; padding:0px;'>solar </span><span style='font-family:inherit; margin:0px; padding:0px;'>technical resource potential </span><span style='font-family:inherit; margin:0px; padding:0px;'>after a minimum</span><span style='font-family:inherit; margin:0px; padding:0px;'> set of</span><span style='font-family:inherit; margin:0px; padding:0px;'> land-</span><span style='font-family:inherit; margin:0px; padding:0px;'>use screen</span><span style='font-family:inherit; margin:0px; padding:0px;'>s (referred to as the Base Exclusions)</span><span style='font-family:inherit; margin:0px; padding:0px;'> has</span><span style='font-family:inherit; margin:0px; padding:0px;'> been applied.</span><span style='font-family:inherit; margin:0px; padding:0px;'> </span><span style='font-family:inherit; margin:0px; padding:0px;'> </span></span><span style='font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; margin:0px; padding:0px; font-size:11pt;'> </span></p><p style='margin-top:0px; margin-bottom:0px; padding:0px; font-kerning:none; background-color:transparent; color:windowtext;'><span style='font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; margin:0px; padding:0px; font-size:11pt;'><br /></span></p></div><div style='font-family:&quot;Segoe UI&quot;, &quot;Segoe UI Web&quot;, Arial, Verdana, sans-serif; margin:0px; padding:0px; clear:both; color:rgb(0, 0, 0); font-size:12px;'><p style='margin-top:0px; margin-bottom:0px; padding:0px; font-kerning:none; background-color:transparent; color:windowtext;'><span style='font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; margin:0px; padding:0px; font-size:11pt; font-variant-ligatures:none !important;'><span style='font-family:inherit; margin:0px; padding:0px;'>More information on the methods developing this dataset as well as the </span><span style='font-family:inherit; margin:0px; padding:0px;'>main use of this dataset in state electric system planning processes can be found </span><span style='font-family:inherit; margin:0px; padding:0px;'>in a recent </span></span><a href='https://www.energy.ca.gov/publications/2023/calculating-parcelization-electric-system-planning' style='color:rgb(0, 97, 155); text-decoration-line:none; font-family:inherit; margin:0px; padding:0px;' target='_blank' rel='nofollow ugc noopener noreferrer'><span style='font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; margin:0px; padding:0px; color:rgb(5, 99, 193); font-size:11pt; text-decoration-line:underline; font-variant-ligatures:none !important;'><span style='font-family:inherit; margin:0px; padding:0px;'>CEC staff report</span></span></a><span style='font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; margin:0px; padding:0px; font-size:11pt; font-variant-ligatures:none !important;'> and </span><a href='https://www.cpuc.ca.gov/industries-and-topics/electrical-energy/electric-power-procurement/long-term-procurement-planning/2022-irp-cycle-events-and-materials/assumptions-for-the-2024-2025-tpp' style='color:rgb(0, 97, 155); text-decoration-line:none; font-family:inherit; margin:0px; padding:0px;' target='_blank' rel='nofollow ugc noopener noreferrer'><span style='font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; margin:0px; padding:0px; color:rgb(5, 99, 193); font-size:11pt; text-decoration-line:underline; font-variant-ligatures:none !important;'><span style='font-family:inherit; margin:0px; padding:0px;'>workshops supporting the resource-to-busbar </span><span style='font-family:inherit; margin:0px; padding:0px;'>mapping methodology</span></span></a><span style='font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; margin:0px; padding:0px; font-size:11pt; font-variant-ligatures:none !important;'><span style='font-family:inherit; margin:0px; padding:0px;'> for the </span><span style='font-family:inherit; margin:0px; padding:0px;'>2024-2025 </span><span style='font-family:inherit; margin:0px; padding:0px;'>Transmission Planning Process</span><span style='font-family:inherit; margin:0px; padding:0px;'>. </span></span></p></div>
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "ArcGIS Hub Dataset",
    "format": "HTML",
    "accessURL": "https://cecgis-caenergy.opendata.arcgis.com/maps/CAEnergy::parcelization-tile-layer"
  },
  {
    "@type": "dcat:Distribution",
    "title": "ArcGIS GeoService",
    "format": "ArcGIS GeoServices REST API",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://tiles.arcgis.com/tiles/bWPjFyq029ChCGur/arcgis/rest/services/Parcelization_Replacement/MapServer/0"
  }
]
identifier 47a515b2-60c4-4855-a1b9-cac0eb71064f
issued 2024-03-25T15:25:01.000Z
keyword 
                                            [
  "CAOpenData",
  "California Energy Commission",
  "California Natural Resources Agency",
  "SB100",
  "STEP",
  "california energy commission"
]
license http://www.opendefinition.org/licenses/cc-by
modified 2024-03-25T16:16:28.000Z
publisher 
                                            {
  "name": "California Energy Commission",
  "@type": "org:Organization"
}
theme 
                                            [
  "Natural Resources"
]
title Parcelization (Tile Layer)

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