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Energy & Utilities · head to head

ETAP vs OSIsoft PI System

ETAP logo

ETAP

Energy & Utilities

Electrical power system design and analysis software

From
$5000/year
Rated
-
Full reviewWebsite
OSIsoft PI System logo

OSIsoft PI System

Energy & Utilities

Real-time operational intelligence for industrial operations

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: ETAP no pricing is published, and reaching a figure requires completing a multi step quote form; OSIsoft PI System oSIsoft is now AVEVA and osisoft.com redirects to the AVEVA PI System pages
  • They diverge on capability: ETAP covers Load flow analysis, OSIsoft PI System covers Real-time data collection.

Where they differ

Only the attributes on which ETAP and OSIsoft PI System actually diverge.

Attributes where ETAP and OSIsoft PI System differ
AttributeETAPOSIsoft PI System
Starting price$5000/yearOn request
Pricing modelsubscriptionquote
PlatformsWindows, ApiWindows, Web, Api
Founded19861980

Identical on both: free tier (No), user rating (Not yet rated), category (Energy & Utilities).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in ETAP

  • Load flow analysis
  • Short circuit analysis
  • Arc flash analysis
  • Protective device coordination
  • Harmonics analysis
  • Transient stability
  • Cable sizing
  • Panel schedule design

Only in OSIsoft PI System

  • Real-time data collection
  • Time-series data storage
  • Advanced analytics
  • Asset framework
  • Visualization tools
  • Event frames
  • Data compression
  • Notifications and alerts

Both cover

  • SCADA systems

What people use each for

The jobs each tool is most often brought in to do.

ETAP

  • Electrical power system modelling, simulation and analysisnot OSIsoft PI System
  • Arc flash, load flow and protection coordination studiesnot OSIsoft PI System

OSIsoft PI System

  • Collecting and historising high frequency industrial process and sensor datanot ETAP
  • Operations dashboards and trend analysis for plants and utilitiesnot ETAP
  • Feeding real time operational data into analytics and digital twin applicationsnot ETAP

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

ETAP

  • No pricing is published, and reaching a figure requires completing a multi step quote form
  • Subscription durations offered are 3 years and 5 years, so there is no short commitment option
  • Licences are banded by user count rather than sold individually, in brackets of 1, 5 to 15, 15 to 25, 25 to 50 and over 50
  • National and international network licences are priced separately

OSIsoft PI System

  • OSIsoft is now AVEVA and osisoft.com redirects to the AVEVA PI System pages
  • No pricing is published; osisoft.com/pricing resolves to AVEVA product pages with no rate, minimum or cost driver
  • Licensing runs through the AVEVA Flex Subscription Program rather than a published per-seat or per-tag price
  • The PI System is split across separately listed products including PI Server, PI Vision, PI Data Infrastructure and Edge Data Store

Pricing, plan by plan

ETAP

$5000/year
  • Standard$5000/year
    • Load flow analysis
    • Short circuit analysis
    • Arc flash analysis
  • Professional$15000/year
    • Advanced analysis
    • Protective device coordination
    • Harmonics analysis
  • Enterprise$undefined/year
    • Real-time monitoring
    • SCADA integration
    • Custom modules

OSIsoft PI System

On request

No published plan breakdown. See the OSIsoft PI System review.

Which should you pick?

Choose ETAP if

  • You need load flow analysis.
  • You work on Windows, Api.
  • You also want short circuit analysis.
ETAP review

Choose OSIsoft PI System if

  • You need real-time data collection.
  • You work on Windows, Web, Api.
  • You also want time-series data storage.
OSIsoft PI System review

Questions people ask

Is ETAP or OSIsoft PI System better?
Neither clearly leads. ETAP starts at $5000/year and OSIsoft PI System at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ETAP or OSIsoft PI System?
ETAP starts at $5000/year and OSIsoft PI System at On request.
Does ETAP or OSIsoft PI System run on more platforms?
ETAP runs on Windows, Api. OSIsoft PI System runs on Windows, Web, Api.
What is ETAP best used for?
ETAP is most often used for electrical power system modelling, simulation and analysis, arc flash, load flow and protection coordination studies. Of those, electrical power system modelling, simulation and analysis and arc flash, load flow and protection coordination studies are not what OSIsoft PI System is typically brought in for.
What can ETAP do that OSIsoft PI System cannot?
ETAP covers Load flow analysis, Short circuit analysis, Arc flash analysis, Protective device coordination. OSIsoft PI System covers Real-time data collection, Time-series data storage, Advanced analytics, Asset framework. Both handle SCADA systems.
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