PV Module Standoff and T98 Safety Maps for the United States (IEC 61730, 70 & 80 Celsius)
This dataset provides high-resolution maps of modeled photovoltaic (PV) module standoff distance and associated thermal conditions across the United States for two thermal design scenarios (T98 = 70 degrees C and 80 degrees C), representing distinct module temperature limits used in PV system design. The data are derived from National Solar Radiation Database (NSRDB) weather inputs and processed using the PVDeG (Photovoltaic Degradation) modeling framework.
Each scenario is provided as a separate NetCDF file and represents a distinct module temperature constraint used in system design and reliability assessments.
For each scenario, the dataset contains:
* Standoff distance (x, cm): required to achieve the specified T98 thermal threshold
* T98_inf (degree C): 98th percentile module temperature for a theoretical rack-mounted configuration with infinite standoff
* T98_0 (degree C): 98th percentile module temperature for a no-standoff configuration
All variables are provided on a ~4 km spatial grid (904 - 2424 points), covering the continental United States and surrounding regions.
The T98 metric represents the 98th percentile of modeled module operating temperature and is commonly used to evaluate thermal stress and inform design considerations related to safety standards such as IEC 61730.
These data enable spatially resolved analysis of module thermal behavior, support optimization of mounting configurations (e.g., standoff distance and airflow), and provide insight into geographically varying thermal design constraints relevant to PV system reliability and safety.
Citation Formats
TY - DATA
AB - This dataset provides high-resolution maps of modeled photovoltaic (PV) module standoff distance and associated thermal conditions across the United States for two thermal design scenarios (T98 = 70 degrees C and 80 degrees C), representing distinct module temperature limits used in PV system design. The data are derived from National Solar Radiation Database (NSRDB) weather inputs and processed using the PVDeG (Photovoltaic Degradation) modeling framework.
Each scenario is provided as a separate NetCDF file and represents a distinct module temperature constraint used in system design and reliability assessments.
For each scenario, the dataset contains:
* Standoff distance (x, cm): required to achieve the specified T98 thermal threshold
* T98_inf (degree C): 98th percentile module temperature for a theoretical rack-mounted configuration with infinite standoff
* T98_0 (degree C): 98th percentile module temperature for a no-standoff configuration
All variables are provided on a ~4 km spatial grid (904 - 2424 points), covering the continental United States and surrounding regions.
The T98 metric represents the 98th percentile of modeled module operating temperature and is commonly used to evaluate thermal stress and inform design considerations related to safety standards such as IEC 61730.
These data enable spatially resolved analysis of module thermal behavior, support optimization of mounting configurations (e.g., standoff distance and airflow), and provide insight into geographically varying thermal design constraints relevant to PV system reliability and safety.
AU - Springer, Martin
A2 - Kempe, Michael
A3 - Ford, Tobin
A4 - Ovaitt, Silvana
DB - Open Energy Data Initiative (OEDI)
DP - Open EI | National Laboratory of the Rockies
DO -
KW - energy
KW - power
KW - installation
KW - residential
KW - solar
KW - standard
KW - IEC 61730
KW - PV
KW - high resolution
KW - data
KW - processed data
KW - photovoltaic
KW - standoff distance
KW - thermal conditions
KW - United States
KW - module temperature limit
KW - T98
KW - PVDeG
KW - NetCDF
KW - analysis
KW - thermal behaviour
KW - mounting configuration
LA - English
DA - 2026/04/13
PY - 2026
PB - National Laboratory of the Rockies (NLR)
T1 - PV Module Standoff and T98 Safety Maps for the United States (IEC 61730, 70 & 80 Celsius)
UR - https://data.openei.org/submissions/8659
ER -
Springer, Martin, et al. PV Module Standoff and T98 Safety Maps for the United States (IEC 61730, 70 & 80 Celsius). National Laboratory of the Rockies (NLR), 13 April, 2026, Open Energy Data Initiative (OEDI). https://data.openei.org/submissions/8659.
Springer, M., Kempe, M., Ford, T., & Ovaitt, S. (2026). PV Module Standoff and T98 Safety Maps for the United States (IEC 61730, 70 & 80 Celsius). [Data set]. Open Energy Data Initiative (OEDI). National Laboratory of the Rockies (NLR). https://data.openei.org/submissions/8659
Springer, Martin, Michael Kempe, Tobin Ford, and Silvana Ovaitt. PV Module Standoff and T98 Safety Maps for the United States (IEC 61730, 70 & 80 Celsius). National Laboratory of the Rockies (NLR), April, 13, 2026. Distributed by Open Energy Data Initiative (OEDI). https://data.openei.org/submissions/8659
@misc{OEDI_Dataset_8659,
title = {PV Module Standoff and T98 Safety Maps for the United States (IEC 61730, 70 \& 80 Celsius)},
author = {Springer, Martin and Kempe, Michael and Ford, Tobin and Ovaitt, Silvana},
abstractNote = {This dataset provides high-resolution maps of modeled photovoltaic (PV) module standoff distance and associated thermal conditions across the United States for two thermal design scenarios (T98 = 70 degrees C and 80 degrees C), representing distinct module temperature limits used in PV system design. The data are derived from National Solar Radiation Database (NSRDB) weather inputs and processed using the PVDeG (Photovoltaic Degradation) modeling framework.
Each scenario is provided as a separate NetCDF file and represents a distinct module temperature constraint used in system design and reliability assessments.
For each scenario, the dataset contains:
* Standoff distance (x, cm): required to achieve the specified T98 thermal threshold
* T98_inf (degree C): 98th percentile module temperature for a theoretical rack-mounted configuration with infinite standoff
* T98_0 (degree C): 98th percentile module temperature for a no-standoff configuration
All variables are provided on a ~4 km spatial grid (904 - 2424 points), covering the continental United States and surrounding regions.
The T98 metric represents the 98th percentile of modeled module operating temperature and is commonly used to evaluate thermal stress and inform design considerations related to safety standards such as IEC 61730.
These data enable spatially resolved analysis of module thermal behavior, support optimization of mounting configurations (e.g., standoff distance and airflow), and provide insight into geographically varying thermal design constraints relevant to PV system reliability and safety.},
url = {https://data.openei.org/submissions/8659},
year = {2026},
howpublished = {Open Energy Data Initiative (OEDI), National Laboratory of the Rockies (NLR), https://data.openei.org/submissions/8659},
note = {Accessed: 2026-07-28}
}
Details
Data from Apr 13, 2026
Last updated Apr 23, 2026
Submitted Apr 13, 2026
Organization
National Laboratory of the Rockies (NLR)
Contact
Silvana Ovaitt
Authors
Research Areas
Keywords
energy, power, installation, residential, solar, standard, IEC 61730, PV, high resolution, data, processed data, photovoltaic, standoff distance, thermal conditions, United States, module temperature limit, T98, PVDeG, NetCDF, analysis, thermal behaviour, mounting configurationDOE Project Details
Project Name Durable Module Materials Consortium 2 (DuraMAT 2)
Project Number 38259

