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IoT & Smart Home · head to head

Home Assistant vs HOMER Energy

Home Assistant logo

Home Assistant

IoT & Smart Home

Open source home automation that puts local control and privacy first

From
Free
Rated
-
Full reviewWebsite
HOMER Energy logo

HOMER Energy

Energy & Utilities

Microgrid and distributed energy optimization software

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Home Assistant add-ons run only on Home Assistant Operating System installations, and Container installations have no access to them; HOMER Energy now owned by UL Solutions rather than being independent
  • They diverge on capability: Home Assistant covers Local Control, HOMER Energy covers Microgrid optimization.

Where they differ

Only the attributes on which Home Assistant and HOMER Energy actually diverge.

Attributes where Home Assistant and HOMER Energy differ
AttributeHome AssistantHOMER Energy
Pricing modelopen-sourcesubscription
PlatformsLinux, Docker, Raspberry Pi, MacOS, WindowsWindows, Web
CategoryIoT & Smart HomeEnergy & Utilities
Founded20132009

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

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 Home Assistant

  • Local Control
  • Privacy First
  • Automation Engine
  • Custom Integrations
  • 150+ integrations
  • Voice Control
  • Mobile App
  • REST API

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

  • Windows support

What people use each for

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

Home Assistant

  • Home automationnot HOMER Energy
  • Energy monitoringnot HOMER Energy
  • Security systemsnot HOMER Energy
  • Device integrationnot HOMER Energy

HOMER Energy

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

Where each one falls short

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

Home Assistant

  • Add-ons run only on Home Assistant Operating System installations, and Container installations have no access to them
  • Thread and Z-Wave are controlled by add-ons, so a Container install has no out-of-the-box support for either
  • A Container installation means bringing your own Linux host with Docker and handling updates by hand
  • The recommended install path expects dedicated hardware such as a Raspberry Pi 4 or 5 with at least 2 GB of RAM, an Odroid, or an x86-64 machine
  • Every documented hardware option requires a wired Ethernet connection

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

Home Assistant

Free
  • Community EditionFree
    • Unlimited devices
    • Full automation
    • Local control

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 Home Assistant if

  • You need local control.
  • You want to start without paying.
  • You work on Linux, Docker, Raspberry Pi, MacOS, Windows.
  • You also want privacy first.
Home Assistant 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 Home Assistant or HOMER Energy better?
Neither clearly leads. Home Assistant starts at Free and HOMER Energy at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Home Assistant or HOMER Energy?
Home Assistant starts at Free and HOMER Energy at Free.
Does Home Assistant or HOMER Energy run on more platforms?
Home Assistant runs on Linux, Docker, Raspberry Pi, MacOS, Windows. HOMER Energy runs on Windows, Web.
Can I use Home Assistant for free?
Both have a free tier, so you can try either at no cost before committing.
What is Home Assistant best used for?
Home Assistant is most often used for home automation, energy monitoring, security systems, device integration. Of those, home automation and energy monitoring are not what HOMER Energy is typically brought in for.
What can Home Assistant do that HOMER Energy cannot?
Home Assistant covers Local Control, Privacy First, Automation Engine, Custom Integrations. HOMER Energy covers Microgrid optimization, Techno-economic analysis, Component library, Sensitivity analysis. Both handle Windows support.
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