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Energy & Utilities · head to head

HOMER Energy vs OATI webSmartEnergy

HOMER Energy logo

HOMER Energy

Energy & Utilities

Microgrid and distributed energy optimization software

From
Free
Rated
-
Full reviewWebsite
OATI webSmartEnergy logo

OATI webSmartEnergy

Energy & Utilities

Comprehensive utility billing and customer engagement

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only HOMER Energy has a free tier, so it costs nothing to try first.
  • Each has a real cost: HOMER Energy now owned by UL Solutions rather than being independent; OATI webSmartEnergy oATI publishes no price for webSmartEnergy anywhere on its site; even the product overview is gated behind a brochure request form, with further detail requiring direct email contact to sales@oati.net rather than any published rate (archived brochure page, 25 June 2024)
  • They diverge on capability: HOMER Energy covers Microgrid optimization, OATI webSmartEnergy covers Customer information system.

Where they differ

Only the attributes on which HOMER Energy and OATI webSmartEnergy actually diverge.

Attributes where HOMER Energy and OATI webSmartEnergy differ
AttributeHOMER EnergyOATI webSmartEnergy
Starting priceFreeOn request
Free tierYesNo
PlatformsWindows, WebWeb, Mobile, Api
Founded20091995

Identical on both: pricing model (subscription), 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 HOMER Energy

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

Only in OATI webSmartEnergy

  • Customer information system
  • Utility billing
  • Payment processing
  • Smart meter integration
  • Rate management
  • Service order management
  • Customer portal
  • Demand response

Both cover

  • Data encryption
  • Cloud deployment

What people use each for

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

HOMER Energy

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

OATI webSmartEnergy

  • Utility billingnot HOMER Energy
  • Customer managementnot HOMER Energy
  • Smart meter datanot HOMER Energy
  • Rate analysisnot HOMER Energy
  • Demand response programsnot HOMER Energy

Where each one falls short

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

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

OATI webSmartEnergy

  • OATI publishes no price for webSmartEnergy anywhere on its site; even the product overview is gated behind a brochure request form, with further detail requiring direct email contact to sales@oati.net rather than any published rate (archived brochure page, 25 June 2024)

Pricing, plan by plan

HOMER Energy

Free
  • HOMER GridFree
    • Grid-connected optimization
    • Basic components
    • Limited simulations
  • HOMER Pro$1500/year
    • Advanced optimization
    • All components
    • Unlimited simulations
  • Enterprise$undefined/year
    • Multi-user licenses
    • API access
    • Custom modules

OATI webSmartEnergy

On request
  • CIS Basic$undefined/custom
    • Customer management
    • Billing engine
    • Payment processing
  • CIS Advanced$undefined/custom
    • Advanced rate structures
    • Demand response
    • Prepaid metering
  • Enterprise$undefined/custom
    • MDM integration
    • Analytics suite
    • Multi-commodity

Which should you pick?

Choose HOMER Energy if

  • You need microgrid optimization.
  • You want to start without paying.
  • You work on Windows, Web.
  • You also want techno-economic analysis.
HOMER Energy review

Choose OATI webSmartEnergy if

  • You need customer information system.
  • You work on Web, Mobile, Api.
  • You also want utility billing.
OATI webSmartEnergy review

Questions people ask

Is HOMER Energy or OATI webSmartEnergy better?
Neither clearly leads. HOMER Energy starts at Free and OATI webSmartEnergy at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, HOMER Energy or OATI webSmartEnergy?
HOMER Energy has a free tier; the other does not. Paid plans start at Free for HOMER Energy and On request for OATI webSmartEnergy.
Does HOMER Energy or OATI webSmartEnergy run on more platforms?
HOMER Energy runs on Windows, Web. OATI webSmartEnergy runs on Web, Mobile, Api.
Can I use HOMER Energy for free?
Yes. HOMER Energy has a free tier, so you can try it without paying. OATI webSmartEnergy starts at On request.
What is HOMER Energy best used for?
HOMER Energy is most often used for sizing and optimising off-grid and microgrid systems, modelling the economics of solar, wind and battery combinations, electric bill optimisation for grid-connected sites and ev charging, utility-scale storage investment analysis. Of those, sizing and optimising off-grid and microgrid systems and modelling the economics of solar, wind and battery combinations are not what OATI webSmartEnergy is typically brought in for.
What can HOMER Energy do that OATI webSmartEnergy cannot?
HOMER Energy covers Microgrid optimization, Techno-economic analysis, Component library, Sensitivity analysis. OATI webSmartEnergy covers Customer information system, Utility billing, Payment processing, Smart meter integration. Both handle Data encryption, Cloud deployment.
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