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Software · head to head

Stem Athena vs ETAP

S

Stem Athena

Software

AI-driven clean energy optimization

From
On request
Rated
-
Full reviewWebsite
ETAP logo

ETAP

Software

Electrical power system design and analysis software

From
$5000/year
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Stem Athena stem's site names the product PowerTrack Optimizer, formerly Athena, so the Athena name is retired; ETAP no pricing is published, and reaching a figure requires completing a multi step quote form
  • They diverge on capability: Stem Athena covers AI optimization, ETAP covers Load flow analysis.

Where they differ

Only the attributes on which Stem Athena and ETAP actually diverge.

Attributes where Stem Athena and ETAP differ
AttributeStem AthenaETAP
Starting priceOn request$5000/year
PlatformsWeb, Mobile, ApiWindows, Api
Founded20091986

Identical on both: pricing model (subscription), free tier (No), user rating (Not yet rated), category (Unknown).

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 Stem Athena

  • AI optimization
  • Energy storage management
  • Demand charge reduction
  • Grid services
  • Solar integration
  • Weather forecasting
  • Performance analytics
  • Remote monitoring

Only in ETAP

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

Both cover

  • Data encryption
  • Cloud deployment

What people use each for

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

Stem Athena

  • Optimising dispatch and market participation of battery energy storagenot ETAP
  • Monitoring and reporting on solar and storage asset performancenot ETAP
  • Remote diagnostics across renewable generation fleetsnot ETAP

ETAP

  • Electrical power system modelling, simulation and analysisnot Stem Athena
  • Arc flash, load flow and protection coordination studiesnot Stem Athena

Where each one falls short

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

Stem Athena

  • Stem's site names the product PowerTrack Optimizer, formerly Athena, so the Athena name is retired
  • No price, subscription fee or contract term is published anywhere on the site
  • The optimizer is one component of the wider PowerTrack suite alongside separate EMS, SCADA, Power Plant Controller and Logger products rather than a standalone licence
  • Design, procurement, commissioning and operation are sold as managed services separate from the software

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

Pricing, plan by plan

Stem Athena

On request
  • Commercial$undefined/custom
    • Energy storage optimization
    • Demand charge management
    • Rate optimization
  • Utility$undefined/custom
    • Grid services
    • VPP management
    • Frequency regulation
  • Enterprise$undefined/custom
    • Fleet management
    • Portfolio optimization
    • Custom integrations

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

Which should you pick?

Choose Stem Athena if

  • You need ai optimization.
  • You work on Web, Mobile, Api.
  • You also want energy storage management.
Stem Athena review

Choose ETAP if

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

Questions people ask

Is Stem Athena or ETAP better?
Neither clearly leads. Stem Athena starts at On request and ETAP at $5000/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Stem Athena or ETAP?
Stem Athena starts at On request and ETAP at $5000/year.
Does Stem Athena or ETAP run on more platforms?
Stem Athena runs on Web, Mobile, Api. ETAP runs on Windows, Api.
What is Stem Athena best used for?
Stem Athena is most often used for optimising dispatch and market participation of battery energy storage, monitoring and reporting on solar and storage asset performance, remote diagnostics across renewable generation fleets. Of those, optimising dispatch and market participation of battery energy storage and monitoring and reporting on solar and storage asset performance are not what ETAP is typically brought in for.
What can Stem Athena do that ETAP cannot?
Stem Athena covers AI optimization, Energy storage management, Demand charge reduction, Grid services. ETAP covers Load flow analysis, Short circuit analysis, Arc flash analysis, Protective device coordination. Both handle Data encryption, Cloud deployment.
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