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PV Module Standoff and T98 Safety Maps for the United States (IEC 61730, 70 & 80 Celsius)

Publicly accessible License 

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 -
Export Citation to RIS
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

Martin Springer

National Laboratory of the Rockies NLR

Michael Kempe

National Laboratory of the Rockies NLR

Tobin Ford

National Laboratory of the Rockies NLR

Silvana Ovaitt

National Laboratory of the Rockies NLR

DOE Project Details

Project Name Durable Module Materials Consortium 2 (DuraMAT 2)

Project Number 38259

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