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Solar Row Zero Energy Townhomes - Boulder, CO

Published by National Renewable Energy Laboratory | Department of Energy | Catalog Last Checked: April 25, 2026 at 08:41 AM | Dataset Last Updated: November 01, 2023 at 04:41 PM
Wonderland Development has constructed a new "near zero energy" row home design in North Boulder consisting of 9 units: one 5-plex and two duplexes. NREL has performed short-term tests and installed long-term monitoring equipment in three of these units. Two of these units used a solar thermal combi system with a boiler for radiant space heating and water heating and mini-split system for space conditioning. The third unit used a high efficiency tank water heater for space heating. In addition to studying the overall performance of the homes, one unit was used for a detailed study on hot water draws at each fixture. Several reports and presentations were produced on this project, however, due to shifting funding and staffing priorities, a comprehensive final report for this project was never completed. This dataset contains a wealth of raw and analyzed data and several unpublished reports.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "019:20"
]
contactPoint 
{
  "fn": "Paul Norton",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:Paul.Norton@nlr.gov"
}
dataQuality 
true
description Wonderland Development has constructed a new "near zero energy" row home design in North Boulder consisting of 9 units: one 5-plex and two duplexes. NREL has performed short-term tests and installed long-term monitoring equipment in three of these units. Two of these units used a solar thermal combi system with a boiler for radiant space heating and water heating and mini-split system for space conditioning. The third unit used a high efficiency tank water heater for space heating. In addition to studying the overall performance of the homes, one unit was used for a detailed study on hot water draws at each fixture. Several reports and presentations were produced on this project, however, due to shifting funding and staffing priorities, a comprehensive final report for this project was never completed. This dataset contains a wealth of raw and analyzed data and several unpublished reports.
distribution 
[
  {
    "@type": "dcat:Distribution",
    "title": "Field Test of a DHW Distribution System.pdf",
    "format": "pdf",
    "mediaType": "application/pdf",
    "description": "Presentation at the 2010 ACEE Hot Water Forum",
    "downloadURL": "https://data.openei.org/files/5367/Field%20Test%20of%20a%20DHW%20Distribution%20System.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Case Study.pdf",
    "format": "pdf",
    "mediaType": "application/pdf",
    "description": "Results of One Year of Long-Term Monitoring",
    "downloadURL": "https://data.openei.org/files/5367/rep2.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Report PV Test Unit 1_v01.doc",
    "format": "doc",
    "mediaType": "application/msword",
    "description": "Short-term tests were conducted on the photovoltaic array connected to Unit 1 of the Solar Row project in Boulder, Colorado between November 19th  and 20th , 2007.  The tests consisted of measuring i-V (current-voltage) curves for the entire array every 5 minutes during sunlight hours.  The i-V curves were measured using a capacitance-type device which measures 200 voltage and current pairs over the period of between 0.5 and 2.0 seconds.  At the same time global solar radiation in the plane of the collector was measured using a Kipp and Zonen CM21 thermopile pyranometer.  Also measured was the back-of-module temperature using a single type T thermocouple temporarily taped to the back of one typical module.

The test data was used to calibrate a TRNSYS (2) model used to predict annual performance using TMY (Typical Meteorological Year) data for Boulder, CO.  The procedure used to calibrate the model is described by Barker (1).
",
    "downloadURL": "https://data.openei.org/files/5367/Report%20PV%20Test%20Unit%201_v01.doc"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Solar Row House_DataDaily.dat",
    "format": "dat",
    "mediaType": "text/html",
    "description": "This is the raw data for units 1 and 2 of the Solar Row Project saved at 24 hour intervals",
    "downloadURL": "https://data.openei.org/files/5367/Solar%20Row%20House_DataDaily.dat"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Solar Row House_Data60.dat",
    "format": "dat",
    "mediaType": "text/html",
    "description": "This is the raw data for units 1 and 2 of the Solar Row Project saved at 60 minute intervals",
    "downloadURL": "https://data.openei.org/files/5367/Solar%20Row%20House_Data60.dat"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Solar Row House_DataMonthly.dat",
    "format": "dat",
    "mediaType": "text/html",
    "description": "This is the raw data for units 1 and 2 of the Solar Row Project saved at monthly intervals.",
    "downloadURL": "https://data.openei.org/files/5367/Solar%20Row%20House_DataMonthly.dat"
  },
  {
    "@type": "dcat:Distribution",
    "title": "SolarRow DHW_DataEachScan_v01.xls",
    "format": "xls",
    "mediaType": "application/vnd.ms-excel",
    "description": "This is the raw domestic hot water 5 second event data for units 1 of the Solar Row Project. Hot water draws triggered an event that was then recorded at 5 second intervals. ",
    "downloadURL": "https://data.openei.org/files/5367/SolarRow%20DHW_DataEachScan_v01.xls"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Data and Analysis Spreadsheet for Solar Row.xls",
    "format": "xls",
    "mediaType": "application/vnd.ms-excel",
    "description": "This spreadsheet contains data and analysis for the Solar Row project ",
    "downloadURL": "https://data.openei.org/files/5367/Solar%20Row%20Data_v06.xls"
  },
  {
    "@type": "dcat:Distribution",
    "title": "SolarRowACH.xls",
    "format": "xls",
    "mediaType": "application/vnd.ms-excel",
    "description": "This spreadsheet contains data, analysis, and graphics for tracer gas infiltration testing at Solar Row",
    "downloadURL": "https://data.openei.org/files/5367/SolarRowACH.xls"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Solar Row House_Data01.dat",
    "format": "dat",
    "mediaType": "text/html",
    "description": "This zipped file contains the raw data for units 1, 2, and 3 of the Solar Row Project saved at 1 minute intervals. ",
    "downloadURL": "https://data.openei.org/files/5367/Solar%20Row%20House_Data01.dat"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Solar Row Final Field Test Report-public.pdf",
    "format": "pdf",
    "mediaType": "application/pdf",
    "description": "Wonderland Development has constructed a new near zero energy row home design in North Boulder consisting of 9 units: one 5-plex and two duplexes. NREL has performed short-term tests and installed long-term monitoring equipment in two of these units and plans to do the same in one additional unit. This report describes the results of the short-term tests in the south unit and an interior unit of a 5-plex which was completed in December, 2007. Within this report “unit 1” refers to the south end of the 5-plex, address 4657 and “unit 2” refers to the adjacent interior unit, address 4659. Future reports will describe the results of building energy simulations and long-term performance monitoring of the homes.

JANUARY 29, 2008
This report was reviewed, finalized, and presented to the builder but it was never published.",
    "downloadURL": "https://data.openei.org/files/5367/Solar%20Row%20Final%20Field%20Test%20Report-public.pdf"
  }
]
DOI 10.25984/2204234
identifier https://data.openei.org/submissions/5367
issued 2016-09-27T06:00:00Z
keyword 
[
  "BuildingAmerica",
  "Multifamily",
  "Solar combi system",
  "Tracer gas testing",
  "Zero Energy Home",
  "building america",
  "cold",
  "new construction",
  "photovoltaic system",
  "residential",
  "solar thermal system"
]
landingPage https://data.openei.org/submissions/5367
license https://creativecommons.org/licenses/by/4.0/
modified 2023-11-01T16:41:02Z
programCode 
[
  "019:002"
]
projectNumber FY10 AOP 1.9.1.19
projectTitle Building America
publisher 
{
  "name": "National Renewable Energy Laboratory",
  "@type": "org:Organization"
}
spatial 
"{"type":"Polygon","coordinates":[[[-105.2705,40.015],[-105.2705,40.015],[-105.2705,40.015],[-105.2705,40.015],[-105.2705,40.015]]]}"
title Solar Row Zero Energy Townhomes - Boulder, CO

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