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Energy · head to head

AVEVA PI System vs Stem Athena

AVEVA PI System logo

AVEVA PI System

Energy

Industrial data infrastructure for real-time insights

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: AVEVA PI System pricing is not published and comes through an account representative; Stem Athena stem's site names the product PowerTrack Optimizer, formerly Athena, so the Athena name is retired
  • They diverge on capability: AVEVA PI System covers Real-time data collection, Stem Athena covers AI optimization.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which AVEVA PI System and Stem Athena actually diverge.

Attributes where AVEVA PI System and Stem Athena differ
AttributeAVEVA PI SystemStem Athena
Pricing modelone-timesubscription
PlatformsDesktop, Web, Mobile, ApiWeb, Mobile, Api
Founded19672009

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 AVEVA PI System

  • Real-time data collection
  • Time-series data storage
  • Asset framework
  • Visualization
  • Analytics
  • Event management
  • Notifications
  • Data integration

Only in Stem Athena

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

Both cover

  • ISO27001
  • SOC2
  • Cybersecurity

What people use each for

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

AVEVA PI System

  • Industrial data collection and storage for oil, gas, and chemical processingnot Stem Athena
  • Real-time operational data visualization and HMI dashboardsnot Stem Athena
  • Supply chain and asset performance monitoring across sitesnot Stem Athena
  • Compliance and audit trail management for regulated industriesnot Stem Athena
  • Integration with SCADA systems and manufacturing executionnot Stem Athena

Stem Athena

  • Energy asset optimization and managementnot AVEVA PI System
  • Renewable energy integrationnot AVEVA PI System
  • Energy storage managementnot AVEVA PI System
  • Grid operations optimizationnot AVEVA PI System

Where each one falls short

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

AVEVA PI System

  • Pricing is not published and comes through an account representative
  • The vendor is moving to a subscription commercial model, so perpetual licence expectations no longer hold
  • Made up of several separately named components, including PI Server, PI Vision, Edge Data Store and the adapters and connectors needed per data source

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

AVEVA PI System

On request
  • Data Archive$undefined/license
    • Time-series data storage
    • High-speed data collection
    • Data compression
  • Operations$undefined/license
    • PI Vision dashboards
    • AF analytics
    • Event frames
  • Enterprise$undefined/license
    • PI Integrator
    • Cloud connectivity
    • Advanced analytics

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 AVEVA PI System if

  • You need real-time data collection.
  • You work on Desktop, Web, Mobile, Api.
  • You also want time-series data storage.
AVEVA PI System 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 AVEVA PI System or Stem Athena better?
Neither clearly leads. AVEVA PI System 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, AVEVA PI System or Stem Athena?
AVEVA PI System starts at On request and Stem Athena at On request.
Does AVEVA PI System or Stem Athena run on more platforms?
AVEVA PI System runs on Desktop, Web, Mobile, Api. Stem Athena runs on Web, Mobile, Api.
What is AVEVA PI System best used for?
AVEVA PI System is most often used for industrial data collection and storage for oil, gas, and chemical processing, real-time operational data visualization and hmi dashboards, supply chain and asset performance monitoring across sites, compliance and audit trail management for regulated industries. Of those, industrial data collection and storage for oil, gas, and chemical processing and real-time operational data visualization and hmi dashboards are not what Stem Athena is typically brought in for.
What can AVEVA PI System do that Stem Athena cannot?
AVEVA PI System covers Real-time data collection, Time-series data storage, Asset framework, Visualization. Stem Athena covers AI optimization, Energy storage management, Demand charge reduction, Grid services. Both handle ISO27001, SOC2, Cybersecurity.

Answered from the vendors’ own pages

AVEVA PI System: What is AVEVA PI System pricing?

AVEVA does not list PI System pricing on its website. AVEVA markets industrial software through enterprise sales channels with custom quotes.

Source
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
AVEVA PI System: Does AVEVA offer a Flex Subscription Program?

AVEVA mentions Flex Subscription Program on its site for flexible product access, but pricing and terms are not published publicly.

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
AVEVA PI System: Is AVEVA PI System available in the cloud?

AVEVA offers cloud options for its products, but per-seat or usage-based pricing for cloud deployments is not disclosed on the vendor website.

Source
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