EU Sovereignty Score
Self-hosted / open sourceESG & SustainabilityHeadquarters: CH

Joulio-Web: sovereignty score and 8 European alternatives

Joulio-Web is a web-based energy management system from EMU Electronic AG, a Swiss manufacturer of energy meters and data loggers. The software collects consumption data from meters and sites, shows it in line, bar, Sankey and load-profile charts and produces time-triggered or event-triggered reports. You set thresholds and tolerance bands for e-mail alerts and generate bills for cost centres and apartments. Data arrives via M-Bus, Modbus TCP or RTU, CSV import or manual entry, and the number of meters and sites can be extended through licences.

EMU Electronic AG is headquartered in Baar, Switzerland; no foreign parent company is stated. According to the provider, you install Joulio-Web locally or in a data centre, so you decide where the consumption data is kept. A hosted service run by the manufacturer is not described, so no data location is stated; ask the provider if you are considering vendor hosting. Switzerland is not an EU member but is an EFTA country with an EU adequacy decision.

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Sovereignty score
80 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-2100
    Headquartered in Switzerland: Swiss law, recognised by the EU as adequate
  • Data residency SOV-3100
    Hosting in Switzerland only (recognised by the EU as adequate)
  • Cryptographic key sovereignty SOV-380
    Closed source, but self-hostable: encryption keys and runtime under your own control
  • Freedom from lock-in SOV-640
    Closed source: switching requires data migration
  • Source & runtime sovereignty SOV-4 · SOV-680
    Closed source, but self-hostable on your own infrastructure

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
CH (EU)Verified by hand
Data hosting
Self-hosted, e.g. in CH (your choice)Verified by hand
Open-source
NoVerified by hand
GDPR-compliant
NoVendor-stated
Category
ESG & Sustainability
Type
Product
Website
emuag.ch ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Joulio-Web

The European alternatives to Joulio-Web come from our knowledge base of over 9,200 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

67 European ESG & Sustainability 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 Joulio-Web

Joulio-Web is headquartered in Switzerland and falls under Swiss law, including the revised Swiss data protection act. Switzerland is not an EU member, but the European Commission recognises its level of data protection as adequate. Its Swiss headquarters does not by itself bring it under US legislation such as the CLOUD Act.

Joulio-Web runs on infrastructure you choose and control yourself. You decide where the data lives, including fully within the EU if you want — this is not a fixed hosting choice made by the vendor.

Joulio-Web is closed source, but you run the software yourself on your own infrastructure. The encryption keys and the runtime therefore stay under your own control, though you cannot audit or modify the source code. Ask about export options and open standards to limit software-level lock-in.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Joulio-Web 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 Joulio-Web?

It depends on your use case. Strong EU alternatives to Joulio-Web include bluesign, Brightway and Carbmee. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Joulio-Web?

Yes. Open-source EU alternatives to Joulio-Web include Brightway. These keep your data fully under your own control and let you self-host if you want to.

Is Joulio-Web GDPR-compliant and where is the data hosted?

Joulio-Web is headquartered in CH (EFTA) and hosts data in CH. That makes Joulio-Web an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

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 ESG & Sustainability

ESG & Sustainability: Carbon accounting, CSRD reporting, supply-chain due diligence (CSDDD/EUDR/CBAM) and ESG data management. 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 Joulio-Web — GDPR-compliant & EU-hosted · EU Sovereignty Score