EU Sovereignty Score
Self-hosted / open sourceIoT & EmbeddedHeadquarters: GB

Emoncms: sovereignty score and 8 European alternatives

Emoncms is a web application for processing, logging and visualising energy, temperature and other environmental data. Users send measurements through an API or from monitoring hardware such as OpenEnergyMonitor's emonPi, and view them in graphs, dashboards and apps. It is intended for monitoring electricity, solar, storage and heat pumps. You can install it on a Raspberry Pi, a home computer or a web server, or use the hosted service at emoncms.org.

Emoncms is part of the OpenEnergyMonitor project and is released under the GNU Affero General Public License (AGPL). The emoncms.org service is run by Megni, trading as OpenEnergyMonitor, based in Caernarfon, Wales (United Kingdom). According to its privacy policy, the emoncms.org servers are located in the UK and UK GDPR applies. If you host it yourself, your measurement data stays on your own device; the documentation covers installation, backup and restore.

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Sovereignty score
77 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-250
    Headquartered outside the EU (GB)
  • Data residency SOV-3100
    No hosting in Europe (OTHER)
  • Cryptographic key sovereignty SOV-390
    Self-hostable: encryption keys under your own control
  • Freedom from lock-in SOV-680
    Open source: low switching costs
  • Source & runtime sovereignty SOV-4 · SOV-665
    Source code auditable, forkable and self-hostable

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 14, 2026
Headquarters
GB (OTHER)Verified by hand
EU adequacy decision
Yes — found adequate by the European CommissionVerified by hand
Sovereignty model
Open-source, distributedVerified by hand
Data hosting
OTHERVerified by hand
Open-source
YesVerified by hand
GDPR-compliant
YesVendor-stated
Category
IoT & Embedded
Type
Product
Website
emoncms.org ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Emoncms

The European alternatives to Emoncms come from our knowledge base of over 8,400 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

100 European IoT & Embedded vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with Emoncms

Emoncms is headquartered in GB, outside the EU. Contracts and data therefore also fall under non-European law. The GDPR applies through contractual terms, but in a conflict with local legislation you have less certainty than with a European vendor.

Emoncms hosts data outside the EU (OTHER). Personal data therefore leaves the EU, which requires a transfer mechanism under the GDPR and pulls the data residency score down.

Emoncms is open source. You can audit the source code, self-host the software and keep the encryption keys under your own control. Switching is easier because data and software are not tied to a single party.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Emoncms together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Emoncms?

It depends on your use case. Strong EU alternatives to Emoncms include 1NCE, Actility ThingPark and Ágata Technology. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Emoncms?

Our list of EU alternatives to Emoncms is mostly commercial options. Browse the category on the map for open-source choices.

Is Emoncms GDPR-compliant and where is the data hosted?

Emoncms is headquartered in GB (OTHER) and hosts data in OTHER. The vendor states it is GDPR-compliant, but the data falls under non-EU jurisdiction. For full EU data residency the EU alternatives on this page usually offer more certainty.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 14, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

In the changelog

Earlier changes to this page, as listed in the public changelog.

Digital sovereignty in IoT & Embedded

IoT & Embedded: Internet of Things platforms, embedded systems and industrial IoT solutions. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

Also in this category

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8 European alternatives to Emoncms — GDPR-compliant & EU-hosted · EU Sovereignty Score