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Mechanical · Data sources

Motor & Pump Energy Analysis

Efficiency, load, speed and pump performance curves.

Explore selected organizations, manufacturer libraries and research repositories. Each entry explains what it provides, how to access it and which operating conditions to check.

Source guide · Links reviewed

Data sources & references

5 selected sources · Links to original publishers. This is a curated guide, not an exhaustive directory or a hosted dataset.

Assessment methods & modeled estimates

DOE MEASUR — pumping assessments

Pumping-system assessment tools using field measurements, system curves and efficiency estimates.

Use it for
Evaluate energy-saving scenarios. Tool estimates are not certified performance curves for a selected pump or motor.
Operating conditions
Preserve measured flow/head, operating hours, fluid properties, motor/drive assumptions and measurement units. Keep assessment estimates separate from field observations.
Where & how to access
DOE describes MEASUR as free and open source. Review software and underlying reference-data terms separately before redistribution.
Open source ↗
Usage terms & attribution

DOE identifies MEASUR as free/open-source software. Check its license and any third-party reference-data terms separately; no software or data is hosted here.

Technical reference

Hydraulic Institute — pump curve reference

Guidance on interpreting manufacturer head, power, efficiency and NPSH curves.

Use it for
Identify the correct curve and operating conditions before comparing equipment. This reference is not a model-specific curve database.
Operating conditions
Identify pump type, speed, impeller diameter, flow/head units and fluid. Consult the relevant standard and manufacturer for the selected pump’s test basis.
Where & how to access
Public FAQ; standards and other publications have separate access terms. Link to guidance and check permission before reproducing curves or standards.
Open source ↗
Usage terms & attribution

Read the public FAQ at the source. Standards and publications have separate access and copyright terms; a link is not permission to reproduce their text or curves.

Manufacturer pump curves & selection

Grundfos — Product Center and pump curves

A route to product-specific performance curves, duty-point checks and pump documentation in Grundfos Product Center.

Use it for
Compare the required flow/head duty point with a selected pump’s curve.
Operating conditions
Match speed/frequency, impeller, fluid properties and curve tolerances. Distinguish shaft power P2 from electrical input P1 and check whether efficiency refers to the pump or complete assembly.
Where & how to access
Follow Go to Grundfos Product Center, search the exact product, then inspect its curve and documentation. The guide describes print/export and account-based project saving.
Open source ↗
Usage terms & attribution

Manufacturer documents and selection results remain subject to the publisher’s terms and notices. Use the original library; public access or an export option is not a license to republish its tables, curves or software.

Manufacturer motor data & selection

ABB — motor data and Optimizer

Motor selection guidance and access to data sheets, drawings and test reports through ABB Optimizer.

Use it for
Select a motor and compare documented performance assumptions. Cost-of-ownership calculations are estimates rather than site measurements.
Operating conditions
Match motor designation, rated voltage/frequency, speed, enclosure, duty and load fraction. Distinguish motor-only efficiency from motor-plus-drive performance.
Where & how to access
Open the linked Optimizer, choose a motor or enter its parameters, and consult the applicable technical documents. Request unavailable part-load data from ABB.
Open source ↗
Usage terms & attribution

Manufacturer documents and selection results remain subject to the publisher’s terms and notices. Use the original library; public access or an export option is not a license to republish its tables, curves or software.

Manufacturer pump selection

Xylem — pump product selector

Product-selection routes for Xylem equipment and associated technical information.

Use it for
Locate the appropriate pump family and its selection documentation for a specified duty.
Operating conditions
Match selected hydraulic model, impeller, speed, head, flow and fluid. Check test standard, NPSH information and whether power includes the motor/drive.
Where & how to access
Choose a product path in the selector; available tools and documentation depend on brand and region. Use the manufacturer’s representative for a confirmed selection.
Open source ↗
Usage terms & attribution

Manufacturer documents and selection results remain subject to the publisher’s terms and notices. Use the original library; public access or an export option is not a license to republish its tables, curves or software.

Practical use

Compare a measured pump operating point with its manufacturer curve, then use an assessment tool to evaluate speed or system changes. Keep measured efficiency separate from achievable-efficiency estimates.

Check before using the data

  • Match pump model, impeller diameter, speed, fluid density/viscosity and operating point.
  • Distinguish pump, motor and drive efficiency; state the boundary for each input power value.
  • Obtain model-specific curves and motor load-efficiency data from the manufacturer; preserve the curve revision.

Put the data to work

Use the related studio for calculations, simulations and practical learning.

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