Unmetered Supplies Operator services for Distribution Network Operators (DNO's)
The Unmetered Supplies Operator (UMSO) ensures that unmetered electrical equipment—like street lights, traffic signals, telecom cabinets, and EV chargers—is connected safely, accurately, and in full compliance with UK regulations. Appointed by electricity network operators, UMSOs manage trusted inventories, validate consumption estimates, and streamline the connection process for public and private infrastructure.
As your appointed Unmetered Supplies Operator (UMSO), we provide a technically robust and fully compliant framework for managing unmetered electricity connections. Our service ensures accurate inventory validation, seamless integration with Distribution Network Operators (DNOs), and precise calculation of Estimated Annual Consumption (EAC) and Unmetered Supply Certificates (UMSC). We maintain rigorous data governance standards, support Half-Hourly Unmetered Supply (HHUMS) arrangements, and facilitate reliable data flows to Meter Administrators and energy suppliers. With deep expertise in regulatory codes and settlement processes, we enable efficient onboarding, ongoing asset management, and full alignment with industry obligations under the Balancing and Settlement Code (BSC).
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Unmetered Supplies Operator services for Distribution Network Operators (DNO's)
The Unmetered Supplies Operator (UMSO) ensures that unmetered electrical equipment—like street lights, traffic signals, telecom cabinets, and EV chargers—is connected safely, accurately, and in full compliance with UK regulations. Appointed by electricity network operators, UMSOs manage trusted inventories, validate consumption estimates, and streamline the connection process for public and private infrastructure.
As your appointed Unmetered Supplies Operator (UMSO), we provide a technically robust and fully compliant framework for managing unmetered electricity connections. Our service ensures accurate inventory validation, seamless integration with Distribution Network Operators (DNOs), and precise calculation of Estimated Annual Consumption (EAC) and Unmetered Supply Certificates (UMSC). We maintain rigorous data governance standards, support Half-Hourly Unmetered Supply (HHUMS) arrangements, and facilitate reliable data flows to Meter Administrators and energy suppliers. With deep expertise in regulatory codes and settlement processes, we enable efficient onboarding, ongoing asset management, and full alignment with industry obligations under the Balancing and Settlement Code (BSC).
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Why it matters
Regulatory Expertise & Compliance Assurance
We operate under strict industry codes, including the Balancing and Settlement Code (BSC). Our deep understanding of regulatory frameworks ensures that all unmetered connections are processed, validated, and maintained in full compliance—reducing risk for infrastructure owners and energy suppliers.
Accurate Inventory Management & Consumption Forecasting
By maintaining validated inventories and calculating Estimated Annual Consumption (EAC) and Unmetered Supply Certificates (UMSC), We provide the precise data that supports reliable settlement and billing—critical for both suppliers and asset owners.
Seamless Coordination with DNOs and Meter Administrators
Our UMSO service act as the technical bridge between Distribution Network Operators (DNOs), Meter Administrators, and end users, ensuring smooth onboarding, timely updates, and efficient data flows across the unmetered supply chain.
Support for Diverse Infrastructure Types
From street lighting and traffic signals to telecom cabinets and EV charging stations, our expertise covers e a wide range of unmetered assets—offering scalable solutions tailored to the needs of local authorities, developers, and national infrastructure providers.
What you get
IMSERV automatically collects half-hourly data and presents it via clear dashboards, enabling you to quickly detect anomalies, verify energy savings, and make data-driven decisions without manual effort.
We own the full energy chain, from capturing data others can’t reach to delivering insights that make you move faster.
We own the full energy chain, from capturing data others can’t reach to delivering insights that make you move faster.
We own the full energy chain, from capturing data others can’t reach to delivering insights that make you move faster.
connected assets monitored
of UK electricity data tracked
Top UK suppliers choose US
reads processed monthly
500
connected assets monitored
25
of UK electricity data tracked
90
Top UK suppliers choose US
5
reads processed monthly
Client Testimonial
“We needed someone to guide us through the entire process – from working out how many meters, where to locate them, and ensuring they were installed correctly, through to getting the MPAN’s registered. The complexity of what needed to happen could have become overly complicated, but IMSERV’s expert managed the whole process from end to end – including liaising with all the key partners – and the whole thing was delivered seamlessly.”
Nigel Rippon
Head of Capital Projects, University of Sussex
The 2025 energy data intelligence report
The 2025 energy data intelligence report
How utility providers, suppliers, and large energy users are adapting to complexity, compliance, and the future of smart infrastructure
