In a DSO, meter data management is not “just another system”: it is the system that supports the data chain (metering, events, alarms, commands) coming from the meter and, consequently, billing, customer service, operational efficiency, and advanced analytics. The concentrator, as the gateway between meters and corporate systems, is critical. And this is where the technical AMI-HES comes in: the software that enables the remote and large-scale control, supervision, and operation of concentrators and meters.
An AMI-HES is the software layer that manages field devices: it collects information (measurements/status), monitors communications, and executes remote commands. In the case of concentrators, a distinction is usually made between the technical and the billing, as they have different objectives and requirements.
At Ariadna, the AMI-HES approach is integrated into a “360-vision” platform to monitor and operate the LV network from a single interface, with a robust, interoperable, scalable, and cybersecure solution. Centralizing the information from the AMI-HES, together with advanced monitoring and the Grid Twin on a single platform, multiplies the overall value because they share information and reinforce each other, enabling more complete and consistent network management.
From a functional perspective, usually covers three main areas:
1) AMI asset lifecycle management
Registration, installation, maintenance, replacement, and decommissioning of concentrators and smart meters.
2) Remote management and supervision of data and status
Collection of metering and status data (consumption, events, alarms, communications), with operational monitoring capabilities.
3) Execution of remote commands
Operations such as relay open/close, software/firmware updates, or changes related to contracted power, among others.
In day-to-day operations, the winning AMI-HES is not the one that “has more screens,” but the one that automates repetitive tasks, reduces manual work, and consistently ensures data completeness. An optimized AMI-HES prioritizes and regulates communications to avoid saturation, keeping operations stable even during large-scale campaigns. That is why our policy is clear: optimization + automation so that remote management can scale efficiently and without operational burden.
In the field, remote management usually faces these five problems:
1) Data gaps and “recoveries” that end up being manual
Low reading rates, incomplete measurements, and gaps in curves/profiles: when the system does not properly automate recovery, the team ends up doing manual work, and data quality suffers.
2) Slow, fragmented, and error-prone remote operations
Firmware changes, tariffs, disconnections, power adjustments… when executed “one by one” or through poorly industrialized processes, they create downtime, errors, and internal frustration.
3) Channel saturation and poorly managed retries
In PLC (and field communications in general), “sending more requests” does not always make things faster; it often makes them worse because of congestion. If the AMI-HES does not prioritize traffic and manage retries properly, it can saturate the concentrator or the network.
4) Clock issues and data traceability problems
Time misalignments (inconsistent timestamps) make consumption profiles and events less reliable, with regulatory and contractual impact.
5) Communication failures and PLC noise that are difficult to locate
When “something goes wrong” in the remote management network, identifying the cause (noise, communication drops, anomalies) is not always immediate and often requires specialized teams.
Ariadna approaches the AMI-HES with a simple idea: if the channel is limited, the key is to be intelligent, not persistent.
That is why ours AMI-HES (STG-DC) stands out for:
1) Intelligent meter data recovery (less “manual work,” more completeness)
If manual recoveries are still needed in addition to the AMI-HES, that is the typical sign of incomplete automation.
2) Large-scale operations without saturating the communications highway
Ariadna incorporates internal prioritization and retry logic to execute actions at scale without saturating the concentrator or the network, which is critical when moving from operating individual “cases” to operating entire “fleets.”
3) System self-management
The module itself decides when to query, when to wait, and with what priority, adapting to the system status and level of saturation so that operations remain fast and stable.
With a broader business-oriented approach, this means fewer internal tickets, less manual intervention, greater data consistency, a better team experience, and a remote management system that supports the DSO’s growth.
PRIME ALLIANCE
Ariadna’s participation in PRIME Alliance reinforces its commitment to open, interoperable, and future-ready smart metering management. At a time when distribution utilities need STG systems that are more robust, scalable, and cybersecure, working with a well-established standard such as PRIME helps reduce technology dependency and accelerates more reliable grid digitalization. This translates into a clear advantage: greater flexibility to integrate equipment and systems, lower technology risk, and better readiness to address new operational and cybersecurity challenges in the low-voltage network.
The sector is undergoing a major transition driven by two simultaneous forces:
1) Regulation and risk governance
The NIS2 Directive is setting the roadmap for risk and incident management. As of the publication date of this article, in Spain it is still at the draft bill stage for transposing NIS2 and strengthening cybersecurity coordination and governance, including structures and national coordination.
2) Technological evolution in metering and remote management
New deployments and renewals are pushing toward more robust security mechanisms: encryption, authentication, key management, and secure updates, for example through security frameworks such as DLMS/COSEM and its security suites.
This creates an opportunity, because many DSOs are now strengthening their cybersecurity plans in a context where the sector is moving toward more advanced standards and requirements.
In broad terms, an AMI-HES prepared for this new context should provide:
- Access control and traceability: who does what, when, and why.
- Secure operations: execution of commands with safeguards, minimizing risks.
- Change management: updates and auditing, with the ability to demonstrate measures and processes.
- Integration with the IT/OT ecosystem: so that security does not become a silo.
If a DSO is facing situations such as metering gaps, manual recoveries, slow remote operations, campaigns that become complicated due to saturation, or new cybersecurity requirements, it may be time to rethink the foundation. Investing in a technical AMI-HES is not about “changing a system,” but about ensuring data quality and day-to-day operations, reducing operational burden, and preparing remote management for what comes next.
