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Advanced Data Service service that gathers and processes detailed data from advanced meters. It replaces the Data Collector & Aggregator roles for Half Hourly and Non-Half Hourly meters. So where you would previously see “HHDC/DA” or “NHH DC” you will now see “ADS”.

Stark is fully qualified to provide Advanced Data Services.

Check our Stark Data electricity or Market-wide Half Hourly Settlement pages for more.

A category for advanced meters that collects detailed usage data for billing, even if there are communication issues.

Elexon administers the Balancing & Settlement Code, a code of practice, rules and standards to which data, metering services and suppliers must adhere to.

Testing to ensure different system parts work well together. Component Integration Testing is part of the Market-wide Half Hourly Settlement programme to ensure all data and metering agents are ready and qualified.

When meter data is unavailable, the Processing Service (Smart) will use a Daily Advance Estimate. It is calculated using the latest data read divided by the number of days in the Meter Advance

The Data Integration Platform is an online platform which allows suppliers, data and metering agents to communicate with each other about meter faults, appointments and more. It replaces the old Data Transfer Network.

A general term for services that manage all meter data, including advanced, smart and unmetered data services.

Services provided by Elexon under the MHHS program, including data management, consumption pattern analysis, and energy volume calculation.

The Load Shaping Service calculates energy usage patterns to help convert basic meter readings into detailed data for billing. It can be used to help where settlement data is missing or unavailable.

A service that checks and processes detailed billing data from various sources.

The biggest change to the UK’s electricity market and will affect everyone – with or without Half Hourly meters.

All NHH Non-Half Hourly & traditional meters, both domestic and commercial, must be upgraded to Half Hourly to enable more accurate data collection and settlement across the UK electricity network.

All meters must also be moved to the new settlement system so that all Half Hourly meters will be de-appointed and re-appointed.

It is a key enabler for Net Zero and will support an improved way to measure supply and demand in a changing network where renewable generation plays a vital role.

Check our Market-wide Half Hourly Settlement pages for more.

The Market is split into three Market Segments under Market-wide Half Hourly Settlement. They are Advanced (detailed data), Smart (detailed or basic data)  and Unmetered (no meter).

The Market-wide Half Hourly Settlement Migration Fee is a fee for switching to the new half hourly settlement system. It helps cover the costs of the data or metering agent.

The Meter Data Retrieval Service retrieves data from smart meters through the Data & Communications Company (DCC) without changing any meter settings.

The Meter Reading Service collects basic meter readings when detailed data is unavailable. The reads can be obtained by a site visit or remotely where their systems allow.

The Metering Service Advanced installs and maintains advanced meters. It replaces the Meter Operator role for both Half Hourly and Non-Half hourly meters. So where you would normally see “HH MOP” or “NHH AMR” or “NHH MOP/DC” you will see MSA.

Stark is fully qualified as a Metering Service Advanced agent.

The Metering Service Smart installs and maintains smart and non-smart meters. It replaced the Meter Operator role for smart meters.

Stark is fully qualified as a Metering Service Smart agent.

Migration under Market-wide Half Hourly Settlement means switching meters to be managed under the new system. The migration period is from April 2025 to October 2026.

The Processing Service (Smart) collects, checks, and estimates detailed usage data from smart and non-smart meters.

The Registration Service manages information about who owns and uses supply points.

The Smart and Non-Smart Market Segment is a category for meters managed by the DCC, including both smart and non-smart meters.

Smart Data Services collects, checks, and uses data from smart and non-smart meters for billing.

Stark is fully qualified to provide Smart Data Services.

The Market-wide Half Hourly Settlement Target Operating Model is the new system to support detailed, half-hourly billing for the UK electricity market.

The Unmetered Supplies Market Segment is a category for equipment that uses electricity but doesn’t have a meter, like street lights and traffic signs.

The Unmetered Suppliers Data Service calculates usage data for equipment without meters, like street lights, using approved software.

AMR refers to a collection of energy devices that can be used to remotely store and collect energy readings.

Code of practice 2 meters are for High Voltage (HV) sites using between 10MW and 100MW, where the circuit capacity does not go over 100MVA. Two meters are installed for greater accuracy and resilience.

Code of practice 5 meters are for Low Voltage (LV) supplies which use between 100kW to 1 MW. They only need a single meter to be installed.

A CT or Current Transformer is a piece of equipment which clips or wraps around your electricity supply cable and sends the reading of your current consumption to the meter.

This means the meter is not directly wired into the electrical circuit.

Most HH meters will be CT meters whilst NHH meters are mainly Whole Current.

The CT ratio refers to the level of current going through the supply cable to the level of current going from the CT to the meter. So a 100A supply cable with a 5A CT gives a CT ratio of 20:1.

This is the agent responsible for reviewing the accuracy of your electricity data, generating estimates based on previous usage and then submitting them to your supplier for settlement. In most cases your DC and DA would be the same company as the tasks go hand in hand.

This is the appointed agent responsible for collecting your electricity consumption data in line with industry regulations and requirements. You can choose your preferred DC otherwise the supplier will appoint their own agent.

This is typically a second person collecting your energy data but is not responsible for submission to your supplier or any kind of validation and is not required by law.

HH is the frequency in which energy data is recorded and stored, sometimes called 30 minute interval data, meaning there’s 48 HH values in 24 hours.

NHH is the frequency in which energy data is recorded and stored. If your supply is NHH then the data will typically be collected once a day in line with Elexon’s Balancing & Settlement Code. Profile classes will be applied to configure the consumption pattern.

A HH MOP is the appointed organisation responsible for the design, installation and maintenance of your electricity meter, ensuring it is operational and recording energy correctly. It is an OFGEM regulation to have a MOP for all HH supplies. MOPs are appointed to manage a meter by the SUpplier, they cannot act without a supplier’s MOP appointment. Customers can choose their own MOP otherwise a supplier will appoint their preferred MOP.

This is the unique 13-digit identifier given to each electricity supply point.

Ofgem Is the governing body for the UK’s energy industry and performs the role of independent regulator, responsible for maintaining standards across domestic and commercial markets.

This is first two digits listed in the top line of your MPAN. These relate to the measure of expected consumption and your load profile. They typically range from 00 – 08 with the highest number referring to the lowest banding of expected consumption.

KVA stands for Kilo-Volt Ampere and shows how much electrical power can be fed into your meter point, in other words, your supply capacity.

1 KVA equals 1,000 Watts (or 1 kW).

A device used to measure energy consumption that requires connection to the main meter. They can be integrated into the meter itself, or a separate device which connects to the meter’s pulsed output.

Correction Factors correct for the differences in gas pressure from the distribution point to your meter.

We ask for customers to provide them at the start of any Gas logger or MAM project so we can apply them automatically to your data in Stark ID, so you get greater accuracy.

This is a unique number which links to a specific MPRN. Each MPRN has its own CRN. Together the MPRN & CRN unlock Xoserve, so we can collate all necessary information at the start of a MAM project. Without the CRN we cannot access the confirmation and rely on the supplier to provide it instead. provided by the gas supplier.

Calorific Values are provided by National Grid and they correct for the quality of the gas you use.

We automatically apply these to your data in Stark ID.

Where you have a corrector in place an isolation barrier relay must be installed before any data loggers can be connected. The device provides a safety barrier between the electrical corrector device and the gas meter.

This is the appointed agent who will finance the gas meter.

This is the appointed organisation responsible for the design, installation and maintenance of your gas meter and ensuring that it is functioning and recording correctly. Depending on the Nexus Class the MAM is operating under, will determine whether you get daily data or not. You can choose your own MAM otherwise your supplier will use their preferred agent.

An MPRN is the unique identifier given to each gas supply point.

A pulse splitter is a device which allows a meter to be connected to more than one data logger.

If you have a rotary gas meter, we’ll need to survey it and provide a DFA before any gas meter exchange can take place. This is an industry requirement and can result in a new meter set up and design being created, improving the layout and space of the meter set up.

Meters with no integrated data logger will have a connector, or output, for external devices like data loggers to be attached. The output will give the external device access to the pulses the meter is counting consumption in, hence it being a pulsed output. Once connected the data logger will be able to count the pulses the meter is creating.

When something is already connected to the meter, a third party logger for example, then you can tell us there’s no spare pulsed output available. This is fine, we’ll follow the meter owner’s instructions on installing a pulse splitter.

Xoserve are a private company responsible for the operation of gas shippers, suppliers and transporters. Their online platform also enables Gas MAMs, such as Stark Connect, to access meter technical details and supply details to help with meter adoption and installation projects. Both the MPRN and CRN need to be provided to access the information.

This is a unit you’ll see in our Stark Zero and Stark ID platforms.

It’s metric, and converts other GHGs to their equivalent CO₂ amount, all depending on their Global Warming Potential (GWP).

Release of GHGs from within areas you control.

This is a mandatory energy reduction scheme and applies to a specific set of businesses that meet the criteria. Those businesses must review and be able to demonstrate what accounts for at least 90% of their energy consumption, submit their findings and then an assessor will make recommendations on where energy reductions can be made to reduce waste.

Energy Savings Opportunity Scheme (ESOS) – GOV.UK (www.gov.uk)

These are gases produced either naturally or as a result of human activity whose radiation impacts our atmosphere. Most common are carbon dioxide (CO₂), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), nitrogen trifluoride (NF3), perfluorocarbons (PFCs), and sulphur hexafluoride (SF6). Emissions from these gases are reported as carbon dioxide equivalents (CO₂e).

Emissions can be Direct or Indirect.

Carbon dioxide has the GWP of 1, and all other gases are compared to that. IPCC monitors and provides the equivalents for each GHG. You can see the latest results here:

Global Warming Potentials (IPCC Fourth Assessment Report) | UNFCCC

This is a mandatory reporting requirement for large businesses to assess and review their energy consumption, efficiencies and carbon output.

Environmental reporting guidelines: including Streamlined Energy and Carbon Reporting requirements – GOV.UK (www.gov.uk)