Energy monitoring tool – choosing a smart metering device for the shop

What is energy monitoring (Energiemonitoring)?

Energiemonitoring is a system that:

  • Continuously measures energy consumption (electricity, gas, water)

  • Analyses the data and detects unnecessary consumption

  • Sends alerts when consumption exceeds a defined threshold

  • Provides weekly/monthly reports to help you make effective decisions

What are the ideal specifications for a smart device in a small shop?

Feature
What it should support

Type of measurement
Electricity (230 V or 400 V), sometimes heat/gas as well

User interface
Mobile app or web-based dashboard

Level of detail
Consumption per hour/day, comparison of different periods

Connectivity
Wi-Fi or LAN – usually without the need for a separate gateway

Export
CSV / Excel so the data can be used in efficiency or subsidy reports

Alerts
Notifications when a certain consumption level is exceeded

Compatibility
With other devices (e.g. sub-meters or Home Assistant)

Best suitable devices/systems currently (2025)

Device / provider – Advantages – Approximate price

EMH eHZ Smart Meter

  • Advantage: Smart meter with support for an energy gateway

  • Price: €150–250

Discovergy Smart Meter

  • Advantage: Includes gateway, web & app interface, support for CO₂ reports

  • Price: from €250 + subscription

Smappee Infinity

  • Advantage: Multi-line monitoring, device detection

  • Price: from €400

Voltaware Business

  • Advantage: Smart analytics, device-level consumption reports

  • Price: monthly SaaS model

Emlog Energiemonitor

  • Advantage: Very simple, designed for retailers and restaurants

  • Price: €120–180

When is such a device necessary?

Situation – Recommendation

Shop with fridges or strong lighting
Yes – to understand operating costs

Operation with industrial machines or bakeries
Highly recommended – to monitor load peaks

You want to apply for investment support (e.g. BAFA energy consulting)
Necessary – as part of an efficiency report

Very small shop without cooling or machines
A classic electricity meter may be sufficient

Is the device treated as a business expense?

Yes, it is classified as a business expense (Betriebsausgabe) and is tax-deductible.
If the project is part of an energy efficiency improvement plan, you may also qualify for support from:

  • BAFA Energieberatung KMU

  • or the funding programme “Bundesförderung für effiziente Gebäude (BEG)”

The editorial team of the website strives to provide accurate information based on thorough research and consulting multiple sources. Nevertheless, errors may occur or some information may not be fully confirmed. Therefore, please regard the information in the articles as an initial point of reference and always consult the competent authorities to obtain definitive and reliable information.


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