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Energy · head to head

Fronius SOLARWEB vs Johnson Controls Metasys

Fronius SOLARWEB logo

Fronius SOLARWEB

Energy

Solar inverter monitoring and analytics platform

From
Free
Rated
-
Full reviewWebsite
Johnson Controls Metasys logo

Johnson Controls Metasys

Energy

Building management and control system platform

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Fronius SOLARWEB has a free tier, so it costs nothing to try first.
  • Each has a real cost: Fronius SOLARWEB only works optimally with Fronius hardware; monitoring of third-party inverters is not supported; Johnson Controls Metasys a Metasys server supports 1,300 devices and 65,000 objects, so larger estates require additional servers
  • They diverge on capability: Fronius SOLARWEB covers Real-time monitoring, Johnson Controls Metasys covers HVAC control.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Fronius SOLARWEB and Johnson Controls Metasys actually diverge.

Attributes where Fronius SOLARWEB and Johnson Controls Metasys differ
AttributeFronius SOLARWEBJohnson Controls Metasys
Starting priceFreeOn request
Pricing modelUnknownquote
Free tierYesNo
PlatformsWeb, iOS, AndroidWeb, Mobile
Founded19451885

Identical on both: 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 Fronius SOLARWEB

  • Real-time monitoring
  • Performance analytics
  • System optimization
  • Alert notifications
  • Mobile app
  • German language support
  • French language support
  • Spanish language support

Only in Johnson Controls Metasys

  • HVAC control
  • Building automation
  • Energy management
  • Security integration
  • Analytics dashboard
  • SOC2
  • On-premise deployment

Both cover

  • SSL encryption
  • Cloud deployment
  • Web support
  • Mobile support
  • English language support

What people use each for

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

Fronius SOLARWEB

  • System monitoringnot Johnson Controls Metasys
  • Performance trackingnot Johnson Controls Metasys

Johnson Controls Metasys

  • Building automation for offices, data centres, hospitals and universitiesnot Fronius SOLARWEB
  • Managing multi site campuses from one building management systemnot Fronius SOLARWEB
  • Meeting compliance and reporting requirements for regulated facilitiesnot Fronius SOLARWEB

Where each one falls short

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

Fronius SOLARWEB

  • Only works optimally with Fronius hardware; monitoring of third-party inverters is not supported
  • Advanced historical analytics and forecasting features require paid premium subscription
  • Requires stable internet connectivity and cloud connection for all functionality
  • String-level diagnostics require onsite inspection to identify which panel within a string is failing

Johnson Controls Metasys

  • A Metasys server supports 1,300 devices and 65,000 objects, so larger estates require additional servers
  • No hardware requirement, licensing model, subscription term or price is published on the product page; the routes offered are a demo booking and a contact form

Pricing, plan by plan

Fronius SOLARWEB

Free
  • BasicFree
    • Real-time energy monitoring
    • Daily/monthly/yearly production charts
    • Battery storage monitoring

Johnson Controls Metasys

On request

No published plan breakdown. See the Johnson Controls Metasys review.

Which should you pick?

Choose Fronius SOLARWEB if

  • You need real-time monitoring.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want performance analytics.
Fronius SOLARWEB review

Choose Johnson Controls Metasys if

  • You need hvac control.
  • You work on Web, Mobile.
  • You also want building automation.
Johnson Controls Metasys review

Questions people ask

Is Fronius SOLARWEB or Johnson Controls Metasys better?
Neither clearly leads. Fronius SOLARWEB starts at Free and Johnson Controls Metasys at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fronius SOLARWEB or Johnson Controls Metasys?
Fronius SOLARWEB has a free tier; the other does not. Paid plans start at Free for Fronius SOLARWEB and On request for Johnson Controls Metasys.
Does Fronius SOLARWEB or Johnson Controls Metasys run on more platforms?
Fronius SOLARWEB runs on Web, iOS, Android. Johnson Controls Metasys runs on Web, Mobile.
Can I use Fronius SOLARWEB for free?
Yes. Fronius SOLARWEB has a free tier, so you can try it without paying. Johnson Controls Metasys starts at On request.
What is Fronius SOLARWEB best used for?
Fronius SOLARWEB is most often used for system monitoring, performance tracking. Of those, system monitoring and performance tracking are not what Johnson Controls Metasys is typically brought in for.
What can Fronius SOLARWEB do that Johnson Controls Metasys cannot?
Fronius SOLARWEB covers Real-time monitoring, Performance analytics, System optimization, Alert notifications. Johnson Controls Metasys covers HVAC control, Building automation, Energy management, Security integration. Both handle SSL encryption, Cloud deployment, Web support, Mobile support.

Answered from the vendors’ own pages

Fronius SOLARWEB: Does Fronius Solar.web work offline?

No, Fronius Solar.web requires stable internet connectivity as it is a cloud-based monitoring platform.

Source
Johnson Controls Metasys: How much does Johnson Controls Metasys cost?

Johnson Controls Metasys pricing is not published online. Contact Johnson Controls directly for enterprise building automation system pricing and licensing.

Source
Fronius SOLARWEB: What is the cost of Fronius Solar.web?

The basic version is completely free for registered Fronius hardware users. A premium subscription is available for advanced analytics and forecasting features, though specific pricing is not disclosed on the website.

Source
Johnson Controls Metasys: What licensing models does Metasys offer?

Specific Metasys licensing models and pricing are available through Johnson Controls sales team. Contact Johnson Controls for custom quotes based on building management requirements.

Source
Fronius SOLARWEB: What Fronius products work with Solar.web?

Solar.web monitors Fronius inverters, smart meters, battery storage systems, and EV charging products. Advanced features like energy optimization require compatible GEN24/Verto inverters.

Source
Fronius SOLARWEB: Does Fronius Solar.web have a mobile app?

Yes, Solar.web offers native iOS and Android mobile applications for real-time monitoring.

Source
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