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Energy · head to head

Honeywell Building Management vs Stem Athena

Honeywell Building Management logo

Honeywell Building Management

Energy

Integrated building and energy management system

From
On request
Rated
-
Full reviewWebsite
Stem Athena logo

Stem Athena

Energy

AI-driven clean energy optimization

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Honeywell Building Management honeywell Building Management publishes no online pricing across its product category pages (buildings.honeywell.com/us/en/products); the only purchasing path offered site-wide is a Contact Us support form, consistent with B2B building automation sold through installers/distributors rather than direct sale.; Stem Athena stem's site names the product PowerTrack Optimizer, formerly Athena, so the Athena name is retired
  • They diverge on capability: Honeywell Building Management covers HVAC control, Stem Athena covers AI optimization.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Honeywell Building Management and Stem Athena actually diverge.

Attributes where Honeywell Building Management and Stem Athena differ
AttributeHoneywell Building ManagementStem Athena
Pricing modelquotesubscription
PlatformsWeb, MobileWeb, Mobile, Api
Founded19062009

Identical on both: starting price (On request), free tier (No), user rating (Not yet rated), category (Energy).

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 Honeywell Building Management

  • HVAC control
  • Lighting management
  • Energy analytics
  • Maintenance tracking
  • Security integration
  • Microsoft
  • Google
  • SSL encryption

Only in Stem Athena

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

Both cover

  • SOC2
  • Cloud deployment

What people use each for

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

Honeywell Building Management

  • Building automationnot Stem Athena
  • Energy optimizationnot Stem Athena

Stem Athena

  • Energy asset optimization and managementnot Honeywell Building Management
  • Renewable energy integrationnot Honeywell Building Management
  • Energy storage managementnot Honeywell Building Management
  • Grid operations optimizationnot Honeywell Building Management

Where each one falls short

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

Honeywell Building Management

  • Honeywell Building Management publishes no online pricing across its product category pages (buildings.honeywell.com/us/en/products); the only purchasing path offered site-wide is a Contact Us support form, consistent with B2B building automation sold through installers/distributors rather than direct sale.

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

Pricing, plan by plan

Honeywell Building Management

On request

No published plan breakdown. See the Honeywell Building Management review.

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

Which should you pick?

Choose Honeywell Building Management if

  • You need hvac control.
  • You work on Web, Mobile.
  • You also want lighting management.
Honeywell Building Management review

Choose Stem Athena if

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

Questions people ask

Is Honeywell Building Management or Stem Athena better?
Neither clearly leads. Honeywell Building Management starts at On request and Stem Athena at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Honeywell Building Management or Stem Athena?
Honeywell Building Management starts at On request and Stem Athena at On request.
Does Honeywell Building Management or Stem Athena run on more platforms?
Honeywell Building Management runs on Web, Mobile. Stem Athena runs on Web, Mobile, Api.
What is Honeywell Building Management best used for?
Honeywell Building Management is most often used for building automation, energy optimization. Of those, building automation and energy optimization are not what Stem Athena is typically brought in for.
What can Honeywell Building Management do that Stem Athena cannot?
Honeywell Building Management covers HVAC control, Lighting management, Energy analytics, Maintenance tracking. Stem Athena covers AI optimization, Energy storage management, Demand charge reduction, Grid services. Both handle SOC2, Cloud deployment.

Answered from the vendors’ own pages

Stem Athena: How much does Stem Athena cost?

Stem does not publish pricing for Athena on its website. The company appears to use a custom enterprise pricing model. Interested customers must contact Stem directly through their website to inquire about pricing and availability.

Source
Stem Athena: Does Stem offer a free trial?

The Stem website does not mention a free trial or demo option for Athena. Customers are directed to contact Stem's sales team for information about trial access or pricing.

Source
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