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Software · head to head

Wattwatchers EMS vs Fronius SOLARWEB

W

Wattwatchers EMS

Software

Smart building energy management system

From
On request
Rated
-
Full reviewWebsite
Fronius SOLARWEB logo

Fronius SOLARWEB

Software

Solar inverter monitoring and analytics platform

From
Free
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: Wattwatchers EMS requires hardware installation at each monitoring point, increasing total cost of ownership; Fronius SOLARWEB only works optimally with Fronius hardware; monitoring of third-party inverters is not supported
  • They diverge on capability: Wattwatchers EMS covers Energy analytics, Fronius SOLARWEB covers Performance analytics.

Where they differ

Only the attributes on which Wattwatchers EMS and Fronius SOLARWEB actually diverge.

Attributes where Wattwatchers EMS and Fronius SOLARWEB differ
AttributeWattwatchers EMSFronius SOLARWEB
Starting priceOn requestFree
Free tierNoYes
PlatformsWeb, iOS, Android, CloudWeb, iOS, Android
Founded20071945

Identical on both: pricing model (Unknown), user rating (Not yet rated), category (Unknown).

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 Wattwatchers EMS

  • Energy analytics
  • Smart recommendations
  • Alert system
  • Home Assistant
  • Google Home

Only in Fronius SOLARWEB

  • Performance analytics
  • System optimization
  • Alert notifications
  • German language support
  • French language support
  • Spanish language support

Both cover

  • Real-time monitoring
  • Mobile app
  • 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.

Wattwatchers EMS

  • Energy optimizationnot Fronius SOLARWEB
  • Cost reductionnot Fronius SOLARWEB

Fronius SOLARWEB

  • System monitoringnot Wattwatchers EMS
  • Performance trackingnot Wattwatchers EMS

Where each one falls short

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

Wattwatchers EMS

  • Requires hardware installation at each monitoring point, increasing total cost of ownership
  • Built for small to medium portfolios; scaling to large portfolios may present usability challenges
  • Limited to energy monitoring; not a comprehensive building management system

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

Pricing, plan by plan

Wattwatchers EMS

On request

No published plan breakdown. See the Wattwatchers EMS review.

Fronius SOLARWEB

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

Which should you pick?

Choose Wattwatchers EMS if

  • You need energy analytics.
  • You work on Web, iOS, Android, Cloud.
  • You also want smart recommendations.
Wattwatchers EMS review

Choose Fronius SOLARWEB if

  • You need performance analytics.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want system optimization.
Fronius SOLARWEB review

Questions people ask

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

Answered from the vendors’ own pages

Wattwatchers EMS: What data does Wattwatchers monitor?

Wattwatchers measures consumption at the device or circuit level in real-time, identifies equipment inefficiencies, and streams data through cloud dashboards for detailed energy consumption pattern analysis.

Source
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
Wattwatchers EMS: What web-based tools does Wattwatchers provide?

Wattwatchers provides Fleet Management for fleet overview and device health, an Onboarding tool for smartphone-based device configuration, and a Dashboard for customers to view sites and data.

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
Wattwatchers EMS: What is the mydata.energy app?

mydata.energy is Wattwatchers' mobile application available on iPhone and Android that provides real-time energy management and monitoring for homes and small businesses.

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
Wattwatchers EMS: How does ADEPT help with energy management?

ADEPT is Wattwatchers' agile development platform for distributed energy that enables fleet analytics, real-time performance analysis, and zero-code prototyping of custom analytics rules.

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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