Engineering Data References

Find data sources for your engineering application.

Engineering calculations depend on reliable inputs. Use this page to find equipment performance sources and understand the units, operating conditions and source dates needed to compare values and apply them correctly.

Whether you’re comparing heat-pump efficiency, sizing battery backup or estimating solar production, a traceable source helps you select appropriate inputs and document your assumptions.

Choose an application below, open its available reference and follow the source links. Check that the data matches your equipment and operating conditions before using it in a calculation, simulation or design. Related studios provide tools and learning resources.

Source types: certified and listed ratings, manufacturer performance, measured data, modeled data, and weather/resource data. See the differences ↓

Types of engineering data sources

Understand how each data type is produced and obtained. The organizations below are selected examples across engineering applications, not an exhaustive directory.

Certified & listed ratings

Use these to identify equipment and compare ratings under a stated test procedure. Certification programs and equipment lists have different verification scopes.

Selected sources and organizations

How to obtain it

Search the directory using the complete model number or matched indoor/outdoor combination. Check the certificate or listing, its rating conditions and current status. For AHRI data in a separate tool or website, arrange a signed data license; public lookup is not permission to republish.

What to check before using it

Confirm which values the program certifies, the applicable standard and edition, and the exact equipment match. A certified seasonal rating does not make every extended performance point certified.

AHRI data access and licensing ↗

Manufacturer performance

Use model-specific curves and extended tables to evaluate equipment across load, speed and temperature. These may contain tested or engineering-derived values beyond the certified rating points.

Selected sources and organizations

How to obtain it

Look in the manufacturer’s technical library for engineering submittals, selection data and performance tables. Ask its representative or technical support for the exact model, revision and required operating point. NEEP provides a consolidated heat-pump route, with enhanced downloads available to subscribers.

What to check before using it

Preserve model suffixes, configuration, test conditions and the document revision. Confirm whether values are measured or calculated and what power, fan, defrost or auxiliary loads are included. Obtain permission before reproducing tables or distributing derived collections.

NEEP access options ↗

Measured data

Use laboratory tests to study controlled behavior and field measurements to study installed operation. Keep the two settings identified because installation, duty and environment affect results.

Selected sources and organizations

How to obtain it

Choose a study and read its methods and data dictionary before downloading. Follow the study’s raw, processed or hourly file links, or its data-request instructions. Battery Archive requests an email inquiry for complete cell CSV files; some repository entries have access limitations.

What to check before using it

Check units, sensor uncertainty, timestamps, sampling intervals, missing data and the measurement boundary. Field COP is not a certified rating. Laboratory aging and accelerated tests do not directly establish a fleet failure rate. Follow study-specific license, privacy and citation requirements.

Example: DOE/NREL cold-climate field study ↗

Modeled & synthetic data

Use calculated profiles and benchmark systems to test methods, compare scenarios and explore behavior where a complete real-system record is not available.

Selected sources and organizations

How to obtain it

Select a documented release and scenario, then follow the provider’s dataset or case-download links. Download the model description and assumptions with the files. Choose a format compatible with your analysis software.

What to check before using it

Record model version, geography, scenario, aggregation and calibration assumptions. Synthetic grids are not actual utility networks; calibrated load profiles are not raw meter histories. Retain the modeled label and the dataset’s license and required citations.

NASA simulated degradation benchmarks ↗

Weather & resource data

Use location- and time-specific environmental inputs for energy and equipment studies. Station observations, satellite-derived estimates and typical-year files represent different kinds of evidence.

Selected sources and organizations

How to obtain it

Select the coordinates or station, variables, period and interval. Use the provider’s search/download interface or documented API; follow any account, key, request-limit and attribution requirements.

What to check before using it

Check station location, time zone, daylight-saving treatment, timestamp convention, quality flags and units. A typical meteorological year is not an actual historical year, and a satellite estimate is not an on-site instrument reading.

NSRDB dataset access guide ↗

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