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Energy & Utilities · head to head

Stem Athena vs Enerex

S

Stem Athena

Energy & Utilities

AI-driven clean energy optimization

From
On request
Rated
-
Full reviewWebsite
E

Enerex

Energy & Utilities

Energy procurement and market intelligence

From
$500/month
Rated
-
Full reviewWebsite

The short version

  • They diverge on capability: Stem Athena covers AI optimization, Enerex covers Real-time pricing.

Where they differ

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

Attributes where Stem Athena and Enerex differ
AttributeStem AthenaEnerex
Starting priceOn request$500/month
PlatformsWeb, Mobile, ApiWeb, Api
Founded20092001

Identical on both: pricing model (subscription), 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 Stem Athena

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

Only in Enerex

  • Real-time pricing
  • Supplier management
  • Contract optimization
  • Market analytics
  • RFP management
  • Risk analysis
  • Reporting
  • Invoice validation

Both cover

  • SOC2
  • 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 Enerex
  • Monitoring and reporting on solar and storage asset performancenot Enerex
  • Remote diagnostics across renewable generation fleetsnot Enerex

Enerex

  • Energy procurementnot Stem Athena
  • Supplier managementnot Stem Athena
  • Cost reductionnot Stem Athena
  • Risk managementnot Stem Athena
  • Contract negotiationnot 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

Enerex

Nothing recorded yet. See the Enerex review.

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

Enerex

$500/month
  • Professional$500/month
    • Market pricing
    • Supplier comparison
    • Contract management
  • Enterprise$1500/month
    • Advanced analytics
    • Portfolio optimization
    • Risk management
  • Custom$undefined/month
    • White label
    • Custom integrations
    • Dedicated support

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 Enerex if

  • You need real-time pricing.
  • You work on Web, Api.
  • You also want supplier management.
Enerex review

Questions people ask

Is Stem Athena or Enerex better?
Neither clearly leads. Stem Athena starts at On request and Enerex at $500/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Stem Athena or Enerex?
Stem Athena starts at On request and Enerex at $500/month.
Does Stem Athena or Enerex run on more platforms?
Stem Athena runs on Web, Mobile, Api. Enerex runs on Web, 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 Enerex is typically brought in for.
What can Stem Athena do that Enerex cannot?
Stem Athena covers AI optimization, Energy storage management, Demand charge reduction, Grid services. Enerex covers Real-time pricing, Supplier management, Contract optimization, Market analytics. Both handle SOC2, Data encryption, Cloud deployment.
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