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Energy · head to head

Emerson Ovation vs HOMER Energy

Emerson Ovation logo

Emerson Ovation

Energy

Distributed control system for power generation and water treatment plants

From
On request
Rated
-
Full reviewWebsite
HOMER Energy logo

HOMER Energy

Energy

Microgrid and distributed energy optimization software

From
$187.5/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Emerson Ovation nothing about the cost is published, and the licence is a minority of the total; engineering, I/O hardware and commissioning commonly exceed it, so a budget built from a software quote will be wrong by a large multiple.; HOMER Energy now owned by UL Solutions rather than being independent
  • They diverge on capability: Emerson Ovation covers Power application libraries, HOMER Energy covers Microgrid optimization.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Emerson Ovation and HOMER Energy actually diverge.

Attributes where Emerson Ovation and HOMER Energy differ
AttributeEmerson OvationHOMER Energy
Starting priceOn request$187.5/month
Pricing modelquotesubscription
PlatformsWindows, On-premiseWindows, Web
FoundedUnknown2009

Identical on both: 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 Emerson Ovation

  • Power application libraries
  • Ovation SIS
  • Embedded historian
  • NERC CIP tooling
  • Virtualised controllers
  • Simulation

Only in HOMER Energy

  • Microgrid optimization
  • Techno-economic analysis
  • Component library
  • Sensitivity analysis
  • Energy storage sizing
  • Renewable integration
  • Load profile analysis
  • Financial modeling

What people use each for

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

Emerson Ovation

  • Replacing an end-of-life control system on a coal or gas unit during a planned outage, where the vendor must supply turbine control as well as plant controlnot HOMER Energy
  • A municipal water authority standardising treatment plant control across several sites under one NERC-adjacent security regimenot HOMER Energy
  • An IPP wanting the DCS and the safety instrumented system engineered in the same tool rather than integrated across two vendorsnot HOMER Energy
  • Hydro operators needing IEC 61850 and DNP3 into a control system that also runs the balance of plantnot HOMER Energy

HOMER Energy

  • Sizing and optimising off-grid and microgrid systemsnot Emerson Ovation
  • Modelling the economics of solar, wind and battery combinationsnot Emerson Ovation
  • Electric bill optimisation for grid-connected sites and EV chargingnot Emerson Ovation
  • Utility-scale storage investment analysisnot Emerson Ovation
  • Comparing least-cost configurations against load and resource datanot Emerson Ovation

Where each one falls short

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

Emerson Ovation

  • Nothing about the cost is published, and the licence is a minority of the total; engineering, I/O hardware and commissioning commonly exceed it, so a budget built from a software quote will be wrong by a large multiple.
  • Ovation is power and water specific, so a group operating both power stations and chemical plants will end up running Ovation alongside DeltaV or a third-party DCS and paying for two engineering skill sets.
  • The annual support and subscription contract is effectively mandatory: without it you lose access to security patches, which for a NERC CIP regulated asset is not a decision you can defer.
  • Replacement is bounded by outage windows rather than by budget, so a decision to leave Ovation typically takes multiple years and cannot be reversed cheaply once started.
  • Third-party engineering capability is much thinner than for Rockwell or Siemens platforms, so you are largely dependent on Emerson or a small partner pool for changes, and their day rates set the cost of every future modification.

HOMER Energy

  • Now owned by UL Solutions rather than being independent
  • Split into three separate products, HOMER Pro for off-grid and microgrids, HOMER Grid for bill optimisation and HOMER Front for utility-scale, so the right one depends on project type
  • Pricing is not shown on the product pages

Pricing, plan by plan

Emerson Ovation

On request
  • Ovation Automation Platform$undefined/year
    • Priced by controller count, I/O point count and operator workstation
    • Hardware, engineering and commissioning quoted with the software
    • Annual support and subscription contract sold separately

HOMER Energy

$187.5/month
  • Base$187.5/month
    • No modules included; add individually
    • Basic support
    • Software updates
  • Professional$373.5/month
    • Any 4 modules included (Biomass Generation, Run of River Hydro, Advanced Grid, Advanced Load, etc.)
    • Basic support
    • Software updates
  • Expert$568.5/month
    • All modules included: Biomass, Hydro, Hydrogen, Advanced Grid/Load/Storage, Combined Heat & Power, Multi-Year, MATLAB Link
    • Basic support
    • Software updates

Which should you pick?

Choose Emerson Ovation if

  • You need power application libraries.
  • You work on Windows, On-premise.
  • You also want ovation sis.
Emerson Ovation review

Choose HOMER Energy if

  • You need microgrid optimization.
  • You work on Windows, Web.
  • You also want techno-economic analysis.
HOMER Energy review

Questions people ask

Is Emerson Ovation or HOMER Energy better?
Neither clearly leads. Emerson Ovation starts at On request and HOMER Energy at $187.5/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Emerson Ovation or HOMER Energy?
Emerson Ovation starts at On request and HOMER Energy at $187.5/month.
Does Emerson Ovation or HOMER Energy run on more platforms?
Emerson Ovation runs on Windows, On-premise. HOMER Energy runs on Windows, Web.
What is Emerson Ovation best used for?
Emerson Ovation is most often used for replacing an end-of-life control system on a coal or gas unit during a planned outage, where the vendor must supply turbine control as well as plant control, a municipal water authority standardising treatment plant control across several sites under one nerc-adjacent security regime, an ipp wanting the dcs and the safety instrumented system engineered in the same tool rather than integrated across two vendors, hydro operators needing iec 61850 and dnp3 into a control system that also runs the balance of plant. Of those, replacing an end-of-life control system on a coal or gas unit during a planned outage, where the vendor must supply turbine control as well as plant control and a municipal water authority standardising treatment plant control across several sites under one nerc-adjacent security regime are not what HOMER Energy is typically brought in for.
What can Emerson Ovation do that HOMER Energy cannot?
Emerson Ovation covers Power application libraries, Ovation SIS, Embedded historian, NERC CIP tooling. HOMER Energy covers Microgrid optimization, Techno-economic analysis, Component library, Sensitivity analysis.

Answered from the vendors’ own pages

Emerson Ovation: Is Ovation the same as DeltaV?

No. Ovation targets power generation and water; DeltaV targets chemicals, life sciences and refining. They are separate products with separate engineering tools and separate support organisations.

HOMER Energy: What are the pricing options for HOMER Energy?

HOMER Energy pricing information is not publicly available on their website. Customers must contact the vendor directly to obtain pricing information, trial access, and licensing options.

Source
Emerson Ovation: Can I get a price without talking to Emerson?

No. There is no published price list, no trial and no self-service configurator. Every Ovation number comes through Emerson or a certified partner.

HOMER Energy: Does HOMER Energy offer a free trial or demo?

Trial or demo availability cannot be confirmed from publicly accessible pages. Visit the main website or contact HOMER Energy sales directly to inquire about evaluation options.

Source
Emerson Ovation: Does Ovation 4.0 mean I can stop buying Emerson hardware?

No. The software-defined architecture virtualises controllers, but the I/O and field interfaces are still Emerson hardware and are still the bulk of the equipment cost.

Emerson Ovation: What decides the price?

Controller count, I/O point count and the number of operator workstations, plus the engineering hours to configure the control logic for your plant.

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