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Energy · head to head

Generac Grid Services vs OSIsoft PI System

Generac Grid Services logo

Generac Grid Services

Energy

Virtual power plant and distributed energy management platform

From
On request
Rated
-
Full reviewWebsite
OSIsoft PI System logo

OSIsoft PI System

Energy

Real-time operational intelligence for industrial operations

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Generac Grid Services no pricing plans, tiers, costs, or pricing models are published on the website; OSIsoft PI System oSIsoft is now AVEVA and osisoft.com redirects to the AVEVA PI System pages
  • They diverge on capability: Generac Grid Services covers Virtual power plant orchestration, OSIsoft PI System covers Real-time data collection.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Generac Grid Services and OSIsoft PI System actually diverge.

Attributes where Generac Grid Services and OSIsoft PI System differ
AttributeGenerac Grid ServicesOSIsoft PI System
PlatformsWeb, Mobile, ApiWindows, Web, Api
Founded19591980

Identical on both: starting price (On request), pricing model (quote), 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 Generac Grid Services

  • Virtual power plant orchestration
  • Real-time DER dispatch
  • Grid frequency regulation
  • Demand response automation
  • Battery fleet management
  • EV charging optimization
  • Load forecasting
  • Market participation

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

  • SOC2

What people use each for

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

Generac Grid Services

  • Grid balancingnot OSIsoft PI System
  • Peak shavingnot OSIsoft PI System
  • Frequency regulationnot OSIsoft PI System
  • Capacity marketsnot OSIsoft PI System
  • Renewable integrationnot OSIsoft PI System

OSIsoft PI System

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

Where each one falls short

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

Generac Grid Services

  • No pricing plans, tiers, costs, or pricing models are published on the website
  • Customers must use a 'Get an Estimate' feature or contact sales directly

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

Generac Grid Services

On request

No published plan breakdown. See the Generac Grid Services review.

OSIsoft PI System

On request

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

Which should you pick?

Choose Generac Grid Services if

  • You need virtual power plant orchestration.
  • You work on Web, Mobile, Api.
  • You also want real-time der dispatch.
Generac Grid Services 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 Generac Grid Services or OSIsoft PI System better?
Neither clearly leads. Generac Grid Services starts at On request 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, Generac Grid Services or OSIsoft PI System?
Generac Grid Services starts at On request and OSIsoft PI System at On request.
Does Generac Grid Services or OSIsoft PI System run on more platforms?
Generac Grid Services runs on Web, Mobile, Api. OSIsoft PI System runs on Windows, Web, Api.
What is Generac Grid Services best used for?
Generac Grid Services is most often used for grid balancing, peak shaving, frequency regulation, capacity markets. Of those, grid balancing and peak shaving are not what OSIsoft PI System is typically brought in for.
What can Generac Grid Services do that OSIsoft PI System cannot?
Generac Grid Services covers Virtual power plant orchestration, Real-time DER dispatch, Grid frequency regulation, Demand response automation. OSIsoft PI System covers Real-time data collection, Time-series data storage, Advanced analytics, Asset framework. Both handle SOC2.

Answered from the vendors’ own pages

Generac Grid Services: How does Generac Grid Services publish pricing?

Generac Grid Services does not publish specific pricing on their website. Customers can request estimates through the 'Get an Estimate' feature or contact support at 1-888-Generac (1-888-436-3722).

Source
OSIsoft PI System: How much does the AVEVA PI System cost?

AVEVA PI System (formerly OSIsoft PI System) operates on a subscription-based commercial model with customized pricing. The company structures subscriptions to match specific use cases and business needs, requiring direct contact with account representatives.

Source
Generac Grid Services: What are Generac's contact options for pricing?

For pricing inquiries, contact Generac at 1-888-Generac (436-3722) for US/Canada or use the 'Get an Estimate' feature on their website for custom quote generation.

Source
OSIsoft PI System: What is AVEVA PI System's pricing model?

AVEVA offers subscription-based licensing for software components running on-premises or in the cloud. Subscriptions are customized per customer use case, and pricing is determined through consultation with local account representatives.

Source
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