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Energy & Utilities · head to head

OATI webOASIS vs HOMER Energy

OATI webOASIS logo

OATI webOASIS

Energy & Utilities

Energy trading and transmission management platform

From
On request
Rated
-
Full reviewWebsite
HOMER Energy logo

HOMER Energy

Energy & Utilities

Microgrid and distributed energy optimization software

From
Free
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: OATI webOASIS the Internet Archive's capture of OATI's homepage on 20 December 2020 named webOASIS-related modules (OASIS, OASIS Management, OASIS Automation) among dozens of grid and energy trading products, all sold enterprise-to-enterprise via login/contact with no price figure published.; HOMER Energy now owned by UL Solutions rather than being independent
  • They diverge on capability: OATI webOASIS covers Energy scheduling, HOMER Energy covers Microgrid optimization.

Where they differ

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

Attributes where OATI webOASIS and HOMER Energy differ
AttributeOATI webOASISHOMER Energy
Starting priceOn requestFree
Pricing modelquotesubscription
Free tierNoYes
PlatformsWeb, ApiWindows, Web
Founded19982009

Identical on both: 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 OATI webOASIS

  • Energy scheduling
  • Transmission reservations
  • E-tagging
  • Market operations
  • Balancing authority management
  • Congestion management
  • Settlement processing
  • Real-time dispatch

Only in HOMER Energy

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

Both cover

  • Cloud deployment
  • On-premise deployment
  • Web support

What people use each for

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

OATI webOASIS

  • Energy tradingnot HOMER Energy
  • Transmission schedulingnot HOMER Energy
  • Market settlementsnot HOMER Energy
  • Grid balancingnot HOMER Energy

HOMER Energy

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

Where each one falls short

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

OATI webOASIS

  • The Internet Archive's capture of OATI's homepage on 20 December 2020 named webOASIS-related modules (OASIS, OASIS Management, OASIS Automation) among dozens of grid and energy trading products, all sold enterprise-to-enterprise via login/contact with no price figure published.

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

OATI webOASIS

On request

No published plan breakdown. See the OATI webOASIS review.

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

Which should you pick?

Choose OATI webOASIS if

  • You need energy scheduling.
  • You work on Web, Api.
  • You also want transmission reservations.
OATI webOASIS review

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

Questions people ask

Is OATI webOASIS or HOMER Energy better?
Neither clearly leads. OATI webOASIS starts at On request and HOMER Energy at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, OATI webOASIS or HOMER Energy?
HOMER Energy has a free tier; the other does not. Paid plans start at On request for OATI webOASIS and Free for HOMER Energy.
Does OATI webOASIS or HOMER Energy run on more platforms?
OATI webOASIS runs on Web, Api. HOMER Energy runs on Windows, Web.
Can I use HOMER Energy for free?
Yes. HOMER Energy has a free tier, so you can try it without paying. OATI webOASIS starts at On request.
What is OATI webOASIS best used for?
OATI webOASIS is most often used for energy trading, transmission scheduling, market settlements, grid balancing. Of those, energy trading and transmission scheduling are not what HOMER Energy is typically brought in for.
What can OATI webOASIS do that HOMER Energy cannot?
OATI webOASIS covers Energy scheduling, Transmission reservations, E-tagging, Market operations. HOMER Energy covers Microgrid optimization, Techno-economic analysis, Component library, Sensitivity analysis. Both handle Cloud deployment, On-premise deployment, Web support.
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