Your decisions today affect your data tomorrow
WE DO IT ALL
We are the only Agent to operate in all MHHS Data, Metering and Networks roles on behalf of Suppliers and consumers.
We’ve achieved this by focusing on what matters to you: great people, smooth systems & in-house software development.
That’s what makes us different. And what makes your MHHS journey much simpler.
WHAT IS MHHS
MHHS is the biggest change to the UK’s electricity industry in decades.
It will allow better integration of renewable energy, accurate settlement, billing, and more opportunity to shift loads for cheaper energy costs.
Metered supply Migration starts 2025
Metered supplies from October 2025
Unmetered supplies pre-April 2025
Deadline is May 2027
All business & domestic included
All domestic and business electricity supplies will be switched to Half-Hourly settlement & data
Decide on your Data & Meter partner now
Keep control & enjoy a seamless, hassle-free switchover with
Stark as your partner
WHY CHOOSE STARK
Qualified for all agent roles
All roles ADS, SDS, MSA, MSS, UMSDS plus Meter Administrator & network connections
Proprietary System Development
Our in-house software development means more control and dynamic response to industry changes
Retain direct access to data
Stark ID access & energy analytics for all your HH data as standard
Guaranteed service
Keep control and autonomy over your electricity data with our independent Data and Metering services
Access to powerful visual analytics
Consolidate your Data & Metering with Stark to access powerful Analytics and Net Zero solutions
Rely on over 40 years of expertise
With over 40 years of experience, we’re the right partner for optimising your MHHS experience
Be confident with a seamless switchover
More Choice
Choosing Stark gives you autonomy over your journey through Market-wide Half Hourly Settlement.
As an independent Data & Metering service provider Stark MHHS gives you a direct line to the data you are used to.
More Control
As an independent Data & Metering provider, we will directly dial your meters and collect the data, just like we’ve been doing for decades.
Under MHHS, smart meter data will be collected by a centralised body called the Data Communications Company, run by Capita.
Choosing Stark for Data & Metering services means you bypass this by using Advanced (or AMR) meters and retain your control.
More Stability
Market-wide Half Hourly Settlement requires Data and Metering agents to build new systems to accommodate the new industry changes.
We’ve built our data systems since 1981 and MHHS is no different.
Our technical infrastructure and architecture are purpose-built to handle HH data volumes – we already manage over a third of the existing HH market today.
We don’t outsource – we develop, build and test our systems to ensure premium quality results.
More Savings
With access to Stark’s best-in-class data, you can make confident decisions on efficiency upgrades, tenant recharges, settlements, and more.
Plus, all our data comes with the Stark ID energy analytics platform – which helps you find waste and save costs.
Secure your seamless transition today
Be prepared
Take these steps now
Review your Metering portfolio
Do this to avoid any unpleasant surprises when it comes to switching over to the new MHHS systems:
- Obtain or create a list of all your MPANs
- Split the list into Half Hourly (HH), Non-Half Hourly (NHH), Traditional (dumb) meters & Unmetered supplies
- Identity what meter types are in place for your NHH estate
ie Advanced or SMETS or Traditional
Decide how you will manage each meter type & answer these questions:
- Who will be the data & metering agent for each meter type?
- Do you want AMR or SMETS meters for the Traditional meters?
- Who will handle your Unmetered Supplies ahead of the April 2025 deadline?
- For your existing HH MPANs, advise suppliers you want to retain your data & metering agents after migration
- How will you check your HH MPANs have been appointed back to your preferred agents?
Take control of your situation today
Contact our team today for assistance with your portfolio review
Reduce the risk of data gaps & loss of data quality
Reduce the risk of data gaps with a re-appointment plan
MHHS includes a change in how all agents communicate.
This means all your MPANs will be de-appointed from their data collector and moved to the new MHHS systems.
There’s a risk your MPANs may not be appointed back to your preferred data agents, risking data gaps and loss of quality.
- Ensure you have a process to check your HH MPANs are appointed to your preferred partners
If not appointed, we cannot collect data or handle your meter.
Choose a partner for future savings
Choose your partners for MHHS & Beyond
We are fully qualified in all data & metering agents for MHHS and are the only agent qualified with networks as well.
So you’re fully covered from Data and Meter to your Network connections with us.
"Leading up to MHHS migration, Stark have always been at hand with providing us with information and answering our questions well ahead of the changes taking effect. This has helped us prepare for this big transition in advance and provided a wealth of knowledge for our internal stakeholders and our customers."
Head of Client Management, Equity Energies
Optimise your electricity data experience today.
FAQs: Market-wide Half Hourly Settlement
Are Stark qualified for all MHHS roles?
Yes. We are qualified for all Data, Meter & Network roles.
- ADS
- SDS
- MSA
- MSS
- UMSDS
We also perform Network & Meter Administrator roles.
Do I need to worry about Market-wide Half Hourly Settlement?
If you have Non-Half Hourly meters, they will switch to Half Hourly in 2026.
We already collect HH data from the NHH meters we’re responsible for, so switching will be simple with us.
Consider who you want to provide your NHH Data & Metering services now to get ahead of the switch.
Contact us today to discuss MHHS or your Data & Metering portfolio.
How do I know if MHHS will affect me?
If you have Non-Half Hourly meters, Dumb or Traditional meters or Unmetered supplies, then these will need to switch to Half Hourly data and settlement.
You can check your Data & Metering portfolio in Stark ID, sign in here or ask your current provider for a breakdown of your portfolio by meter type and settlement class.
Contact us today to discuss MHHS or your Data & Metering portfolio.
Will my NHH meter need to exchanged for a HH one?
Not necessarily.
Most Non-Half Hourly meters can be reconfigured remotely by the Meter Operator to provide Half Hourly data.
If your NHH meter is older, faulty or not compatible for HH data then you will need to exchange it.
Will I see changes to my billing after MHHS?
Half-hourly metering will mean you are charged accurately for the volume and time you consume electricity.
Instead of it being based on the Non-Half Hourly estimated profile or manual meter reads for dumb meters.
This may result in a change depending on how closely your actual consumption matches the estimated profile that has been applied.
You may see changes to the Data & Metering costs as HH usually is more expensive than NHH.
You may also see new non-commodity charges such as Supply Capacity (KVA) charges.
What will change for the better is the new HH granular data you will have access to through Stark ID, to target waste and load shift to save energy costs.
Contact us today to discuss MHHS or your Data & Metering portfolio.
What is happening to Data Aggregators under MHHS?
The Data Aggregator role will be centralised and performed by Elexon under Market-wide Half Hourly Settlement.
Currently, Data Aggregation is performed competitively by Stark and other industry players.
Contact us today to discuss MHHS or your Data & Metering portfolio.
Does it matter if I have Advanced or SMETS meters for MHHS?
Yes.
The Meter type you have under Market-wide Half Hourly Settlement matters.
Stark will continue to collect your data directly from any Advanced meters you have.
Any SMETS meters you have will be collected by the new centralised Data Collections Company run by Capita.
Stark will then be able to access that SMETS data to present to customers in Stark ID as usual.
We recommend customers choose Advanced meters with Stark Data & Metering services to ensure resilience, data continuity and quality under MHHS and beyond.
Contact us today to discuss MHHS or your Data & Metering portfolio.
Why is MHHS happening?
MHHS is an enabler for Net Zero.
It incentivises Suppliers to encourage their customers to use energy more flexibly throughout the day.
By implementing a wider load-shifting strategy (where consumers shift their consumption away from peak times) the need for new generation is reduced.
This will also allow the national grid to harness intermittent renewable generation better.
Contact us today to discuss MHHS or your Data & Metering portfolio.
When is MHHS happening?
For Stark, it’s happening now. We’re building and testing our new systems to make sure we can communicate within the new MHHS operating model.
All Non-Half Hourly meters must be switched to Half Hourly settlement by May 2027 for businesses and consumers.
Contact us today to discuss MHHS or your Data & Metering portfolio.
Where can I learn more about MHHS?
Bookmark our MHHS section in our Latest News section. Here we regularly publish blogs and articles about MHHS.
Plus we also publish videos on our YouTube channel to help explain our services and MHHS.
Contact us today to discuss MHHS or your Data & Metering portfolio.
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