We manage and operate your commercial electricity meters

Experts in the installation and operation of electricity meters for UK industrial, commercial and public sector organisations. As a MOP DCDA, we can also consolidate your metering activity with high-quality data, enabling you to take full control of your consumption and reduce operational costs.

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Accredited meter operators

We are Meter Operator (MOP) for non-half hourly (NHH) and half-hourly (HH) meter supplies, and one of the leading independent electricity metering service providers for UK businesses.

Meter operator
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Do I need a MOP agreement?

By law, business consumers with half-hourly electricity supplied meters (sites with a maximum demand of over 100kW) must enter into a meter operator agreement, or MOP contract. You are free to choose any accredited MOP to operate your meters, no matter who supplies your energy.

Our customers choose us because of our dedicated support, industry experience, and end-to-end energy service, including integrated data and energy management solutions that enable you to achieve your low-carbon goals.

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What is a MOP DCDA?

We are one of the few meter operator providers (MOP) in the UK to be a data collector and data aggregator (DCDA) as well. Our fully integrated service combines MOP and DCDA solutions.

Managing the complete metering, collection and aggregation process in-house allows us to maximise efficiency and accuracy of the data we provide you. Having a consolidated data partner also minimises the billing risk that can otherwise arise within the data supply chain.

Meter operator services

As a MOP, we provide bespoke electricity metering services in the supply, installation, maintenance and operation of your meters, along with an unrivalled customer service.

Our nationwide MOP services include:

  • Installation, commissioning, testing, operation and maintenance of NHH & half hourly meters
  • Guaranteed service levels, dedicated project management and highly-qualified engineers
  • The latest in metering and data communications technology
  • Regular maintenance and on-call fault resolution
  • CVA accredited metering for grid, generation and energy storage projects

The benefits of having a dual MOP DCDA contract:

  • An integrated MOP DCDA service provides a single dedicated point-of-contact for your metering and data needs
  • End-to-end metering and data management ensures accuracy and efficiency
  • Provision of the highest quality data facilities an improved energy strategy, helping you avoid energy wastage and reduce bills

Metering to power your energy strategy

Whilst our integrated MOP DCDA service provides you with the highest quality data, our in-house energy consultancy assist you to extract maximum value. We not only ensure you only pay for the energy you use, but we can also help you gain a better understanding of your energy consumption, identifying significant energy savings and carbon reductions in the process.

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we operate more than 2.5m half hourly and NHH meter points across the UK domestic and I&C markets


we collect and process c.6 billion data points from our meter assets each year.


providing metering and data solutions for more than 25 years

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CVA accredited metering

As an accredited half-hourly Meter Operator (MOP) for the Central Volume Allocation (CVA) market, we provide bespoke metering solutions for customers connected directly to the transmission system, including renewable energy generators and grid-scale energy storage sites.

CVA MOP Solution

Why choose SMS as your meter operator?

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25 years’ experience in the installation and operation of electricity meters.

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The dedicated resources and expertise to efficiently arrange suitable metering and communication of accurate consumption data, often well ahead of industry standards.

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MOP DCDA service allows you to consolidate your electricity metering and data activity with a single provider – no third parties.

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Our total energy solutions provide you with a complete service for all your energy projects – from strategic advice and energy management to the installation and operation of new low-carbon assets.

FAQs about Meter Operator contracts

What is a Meter Operator Agreement/Contract?

A Meter Operator Contract covers the installation, operation and management of half hour electricity meters. A MOP customer contract is required by law for businesses with half hour meters with 100kW plus consumption.

Can I choose my half hour meter operator?

Yes. A meter operator contract is no longer part of the standard supply agreement with your energy supplier, so you are therefore entitled to choose your own half hour MOP based on your specific requirements. There are significant advantages available by doing this. If you do not appoint a half hour meter operator independently, then your energy supplier will likely appoint one on your behalf, usually their preferred half hour MOP.

How are customers charged for half hour MOP services?

A MOP contract is a separate agreement that is independent from an electricity supply agreement, so you will be invoiced directly by your half hour meter operator for any service charges outlined in the contract. If you have been appointed a half hour MOP by your energy supplier, additional costs may be passed through on your supply contract.

How do I switch half hour Meter Operator Provider?

If you decide to look for a new meter operator agreement, you should first decide which half hour MOP is the best for you based on your requirements. The best way to do this is to discuss your needs with the half hour MOP directly. Once you have agreed a contract, a meter installation date or contract start date will have to be coordinated with the energy supplier. If you are public sector company, you can tender for your half hour MOP through a framework agreement.

Does a MOP agreement include collection and aggregation of my consumption data?

You are free to choose different companies for half hour MOP and DCDA services, however it is highly advisable to combine this solution in order to reduce issues within the supply chain, improving the efficiency and accuracy of your data provision. SMS Plc is one of the few UK providers that offer this integrated metering and data service completely under one roof.

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Interested in our metering solutions? Get in touch with our expert teams today.

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