Voltrader
Voltrader is an energy management offering from Germany's Jostec Systems, connecting household generation, storage, charging and heating. Public product documentation describes a gateway linked to an energy IoT platform, with commissioning services and optional maintenance. Its companion application is now presented as MyHEMS by Voltrader, providing energy monitoring, price-related control and notifications. [1] [2] [4]
The entries below document published information against the eight assessment criteria. They distinguish stated capabilities from evidence needed for verification. No scores have been assigned.
Demonstrated innovation
The documented approach combines building devices with price-signal control and real-time monitoring. The current app brings these functions together with reporting and operational notifications. [1] [4]
Net savings and operational value
Solar self-consumption and shifting demand under dynamic tariffs are the main proposed savings mechanisms. Commissioning and any continuing maintenance costs belong in the installation's business case. [1] [3]
Grid capacity and flexibility control
Published material describes coordinating storage, charging and heating locally. The reviewed technical pages do not establish specific balancing-market qualification or a universal connection-capacity guarantee. [1] [2]
Interoperability across equipment brands
The technical overview lists Ethernet, digital interfaces, RS485, S0 and wireless options across several device categories. Adapters and exact equipment compatibility require installation-specific checking. [2]
Reliability and recovery
The app includes alerts and live operating information. The reviewed technical overview does not specify behaviour during cloud interruption, automatic recovery or service availability commitments. [2] [4]
Cybersecurity and data governance
The developer's Google Play declaration states that collected app data is not encrypted and deletion can be requested. It does not describe the controller's complete security architecture. [4]
Installation, operation and user experience
Jostec offers commissioning and device integration, while MyHEMS provides monitoring and reports. The app listing records a redesigned interface and service-partner functionality. [3] [4]
Support, lifecycle terms and portability
The product page describes an initial maintenance and update period followed by an optional paid package. Current terms and continued functionality after cancellation require confirmation. [3]
- Jostec Systems: Voltrader energy managementjostec-systems.de
- Voltrader technical architecturejostec-systems.de
- Voltrader product and service packagejostec-systems.de
- MyHEMS by Voltrader: developer app listingplay.google.com