SSEN: Networks, Storms and Priority Services

Scottish and Southern Electricity Networks, almost always called SSEN, is the distribution network operator (DNO) for two distinct parts of Great Britain: central southern England and the north of Scotland. It delivers power to over 3.8 million homes and businesses across those two regions¹, including more than 3.1 million customers in the central southern England distribution area alone². If your electricity comes through SSEN's wires, it is SSEN you call when the power goes off, not the company you pay your bills to.

For a household thinking about energy independence, the network operator is the part of the system you cannot choose and cannot replace. SSEN owns the cables, substations and overhead lines between the transmission grid and your meter, and every watt a home generates, stores or draws passes through its network. This page sets out what SSEN does, the help it offers during outages, the compensation rules that apply, and how to apply when you want to connect generation, a heat pump or a new supply.

Who SSEN is and the two regions it runs

SSEN Distribution is one of the licensed electricity DNOs in Great Britain. Its territory is unusual in spanning the country's northern and southern edges: the north of Scotland, including the Highlands and islands, and central southern England, covering counties such as Berkshire, Hampshire and Dorset⁸. SSEN is the distribution network operator for Newbury and the surrounding areas of Berkshire⁸, and its southern region alone serves over 3.1 million customers².

The two figures for customer numbers, 3.8 million homes and businesses across both regions¹ and 3.1 million in central southern England², are not in conflict: the larger figure counts the whole licence area, the smaller one the southern distribution area. Both date from SSEN's own reporting between 2022 and 2024.

The network is under continuous renewal. As the distribution operator for central southern England, SSEN invests over £150 million a year in building resilience into the network⁹. Recent projects include a multimillion pound infrastructure upgrade boosting power supplies in Portsmouth⁸ and a multimillion pound investment strengthening supplies in Charminster⁹. In Scotland, SSEN has marked a milestone in a self-restoring electricity supply system, work aimed at letting the network recover from faults without an engineer's visit¹⁰. After major storms it has also run helicopter line patrols as part of its post-storm works programme, checking overhead lines across difficult terrain¹.

For a household, the practical effect of region is mostly about weather exposure. The north of Scotland faces storms, lightning and long feeder routes, which is why so much of SSEN's storm response capacity sits there. More on how Britain's whole supply system fits together is on the UK energy supply page, and the role of all distribution companies is explained under electricity distribution networks.

What a network operator does, and what it leaves to others

The division of labour is simple once stated. A network operator is responsible for the pipes and wires that move energy¹¹. SSEN keeps the electricity flowing to your meter; your supplier sells you the energy and bills you for it. When the power fails, the fault is almost always on the network side, which is why the reporting number, 105, reaches the network operator rather than a supplier's call centre².

SSEN's own service pages reflect that split. Its existing electricity supplies team handles upgrades, alterations and network-side work, and is available Monday to Friday, 08:00 to 17:00¹². Its new connections teams, for generation, heat pumps and new properties, keep the same office hours¹³. Only the 105 emergency line runs around the clock³.

One quieter role concerns data. SSEN states that it will typically be collecting and aggregating half-hourly consumption data on a regular basis for sections of its low voltage network, and will not be storing individual customers' half-hourly consumption data⁴. It also notes that the number of smart meters installed in its network is relatively low, which limits the benefits available from that data today⁴. So the network's visibility into an individual home's usage is, for now, limited and aggregated rather than household-level.

The lens for independence is this: SSEN is a monopoly you cannot switch away from. A home can change supplier, tariff and generation, but the wires, the connection capacity and the speed of any network upgrade are all SSEN's to control. Applications for anything beyond a simple connection pass through its queues, and its published timescales, not yours, set the pace.

The Priority Services Register: who qualifies and what it provides

The Priority Services Register (PSR) is a free support service offered by energy suppliers and network operators to help vulnerable people¹⁵. SSEN runs its own register, and signing up is free⁴. SSEN's New Year campaign in 2024 highlighted that thousands of customers were missing out on that free support during power cuts², which is the clearest sign that eligibility is wider than most people assume.

SSEN lists the qualifying conditions directly. Customers are eligible for the Priority Services Register if they:

• are deaf or hard of hearing
• have a disability
• live with children under five
• are blind or partially sighted
• have a chronic illness
• use medical equipment or aids reliant on electricity
• are over 60¹⁶

The register matters most during storms. Ahead of Storm Éowyn in 2025, SSEN made proactive contact with 100,000 vulnerable customers by text or phone call before the storm arrived¹⁷. That advance warning is the register's core practical value: a registered household hears about an incoming outage before the lights go out, not after.

Two specific provisions sit behind the register. SSEN states that it only provides generators for customers who are medically dependent on electricity, and does not provide generators for businesses or personal use⁴. And if you rely on electricity for medical equipment, SSEN asks that you let it know by calling 0800 294 3259⁴. Registration with your supplier is separate, so a household that wants full cover joins both lists.

Reporting a power cut and what happens next

The number to call is 105. SSEN's guidance is to call 105 to report a power cut or damage to its equipment, or to use the PowerTrack app³. The line is free to call and open 24 hours a day, 365 days a year³. For questions about a planned power cut, the same number applies⁴.

What to expect during the outage depends on its cause. A common event in rural areas is a tree or branch touching an overhead cable: SSEN says your power may go off for around 1 minute and come back on⁴. Longer faults are tracked through PowerTrack, and restoration is prioritised by the number of customers affected and by safety.

Restoration timing follows rules worth knowing. Under the Guaranteed Standards of Performance, the outage period is measured from the time the network operator became aware of the power cut, either by a telephone call to the emergency service or an alert from automated equipment on the high voltage network; if the supply comes back on and then goes off again, the outage period restarts⁵. So a flickering return does not reset your compensation clock in your favour: the clock keeps running.

For planned interruptions, power should return to your home automatically and, for a planned cut, within one hour after the expected time of reconnection¹⁸. During rota disconnections under the Electricity Supply Emergency Code, power might be switched off or reconnected around 30 minutes before or after the published time, depending on national demand¹⁹. If power is not restored within an hour of the scheduled time, the advice from network operators is to check the live information and report the cut²⁰.

Food safety is the question most households ask first. SSEN says food should keep for about eight hours without power⁴. Other guidance is more generous for freezers: food should keep for between 4 and 6 hours in the fridge and 15 to 24 hours in the freezer if you can avoid opening it¹⁹, and Food Standards Agency advice, as cited by network operators, is that a fridge will keep food safe for up to four hours during a power outage provided the door is kept closed, while a full freezer will hold a safe temperature for approximately 48 hours, or 24 hours if it is half full⁵. The figures differ because they measure different things: SSEN's eight hours is a general rule of thumb, the FSA figures assume a full, closed freezer. The common thread is to keep the doors shut.

Storm preparedness: how SSEN mobilises

Storms are where SSEN's response capacity is most visible, and the company publishes detailed accounts of what it does. Ahead of a period of extensive lightning forecast in the north of Scotland in August 2025, SSEN moved to Weather Warning status and set out its measures: bringing in additional control room teams, preparing supplies of replacement components, putting extra engineering teams on standby, adding extra call handlers, and sending text messages to vulnerable customers¹⁶. The network itself has an automatic safety response: if lightning strikes the infrastructure, it automatically closes down for a brief period to allow a series of safety checks before supplies are re-established¹⁶.

The scale of a full storm response is large. During Storm Éowyn in January 2025, a thousand-strong team worked to fix faults and support affected customers, more than 7,500 hot meals were provided to people awaiting reconnection, and average call waiting times were around 90 seconds¹⁷. During Storm Amy later in 2025, SSEN's own 700-strong storm response team was supported by colleagues from its own network region in the south of England²¹, and in the final push in the Highlands, SSEN confirmed that if a power cut lasted beyond 48 hours, all customers could benefit from financial support and claim costs such as alternative accommodation²².

For a household, the practical reading is this: SSEN's storm response is well drilled and well resourced, but it is sized for the network's normal bad weather, not for a once-in-a-decade event covering both regions at once. In the worst storms, restoration in remote areas takes days, and the compensation and reimbursement schemes in the next sections are what bridge that gap. Wider context on how storms and shortfalls affect the whole grid is on electricity margins, shortfall notices and the risk of shortages.

Planned power cuts: notice, rescheduling and the rules

Planned power cuts happen when SSEN needs to switch off supply to work safely on the network. The notice rule is clear: SSEN will aim to provide written notice at least 2 days before it plans to switch off the power⁴. Citizens Advice states the same as a requirement: your electricity network operator must give you 2 days' notice if it plans to cut off your supply to do work²³.

Once the date is set, it is fixed. SSEN states that once it has confirmed a date and time for the planned power cut, it is unable to make any changes⁴. A household with an unmovable commitment on that day has no rescheduling route through SSEN itself.

On compensation, SSEN is blunt: "We do not offer compensation for planned power cuts. We follow the standards set by our industry regulator, Ofgem."⁴. It also states that it does not provide specific compensation for being unable to charge an EV or export electricity from solar panels during a planned outage⁴. That last point matters for solar households: a planned cut stops export income as well as supply, and SSEN does not reimburse it.

A different category is the planned emergency power cut under rota disconnection, used only when the system is short of generation. Under the Electricity Supply Emergency Code, customers are notified by text message by 6pm the day before, stating the start and end time of the interruption, with information also published on the website and app¹⁹. In Northern Ireland, where NIE Networks runs equivalent arrangements, planned emergency power cuts can take place without warning if the system operator instructs immediate demand reduction²⁴. More detail is on planned power cut notice.

Getting your money back following a power cut

Two schemes run side by side: the statutory Guaranteed Standards of Performance, and SSEN's own storm support packages. The statutory figures are fixed. Under the standards, customers without power for over 24 hours receive £80⁵, with a further £40 for every subsequent six-hour period they were off supply⁶. Citizens Advice summarises the eligibility threshold as being without power for 12 hours or more, or having four power cuts per year of at least three hours each¹⁸.

SSEN's storm packages sit on top of that. During Storm Floris in August 2025, customers without power for more than 12 hours were entitled to £30 per person for every day off supply, to cover the cost of food and drink¹⁷. After Storm Amy, the same £30 per person per day applied for customers without power for more than 12 hours who had not been able to visit one of SSEN's free hot food outlets²², and where a power cut was confirmed to have lasted beyond 48 hours, all customers could claim costs such as alternative accommodation²².

The exclusions are as important as the payments. Ofgem's guidance lists what compensation is not paid for: blackouts caused by a national power shortage, damage to electrical equipment or appliances, and a low supply after a power cut²⁵. Citizens Advice adds that you will not get compensation where the power cut was caused by an emergency, for example a blackout of that kind²³. So the statutory scheme pays for network failures that SSEN could have prevented or restored faster, not for events outside its control.

For a household, the honest summary is that compensation is modest relative to the disruption. £80 plus £40 per six hours covers inconvenience, not the cost of a spoiled freezer load or a lost working day, and the storm packages are discretionary support announced event by event rather than a guaranteed entitlement. How to prepare so that compensation is a backstop rather than the plan is covered in energy security and household independence.

Connecting generation, heat pumps and moving your supply

SSEN's connection services divide by size and type. For existing supplies, a Fast Track route makes it quicker and easier to apply for a connection for eligible solar panels, battery storage systems and other small-scale generation installations¹². Increasing your supply is usually free of charge up to a maximum of 80 amps for domestic customers¹². Before you begin an application, you must register or log into your account¹².

For generation applications, the submission needs a map highlighting the full land boundary, marking the proposed or existing meter point and the proposed location of the generation⁷. It can take up to 45 working days to receive a quotation, counted from the date correct information is sent⁷. For installations of up to 3.68kW per phase at more than one property, the same 45 working day maximum applies from the date a complete application is received²⁶, and an application is still required even if the total generation across all properties or generators is below 3.68kW²⁶. You must apply before you connect if you are installing at more than one property, there is more than one generator at a single property, or another property in the same postcode area has had generation installed within the last 28 days by the same installer²⁶.

Heat pump connections run through a form returned to connections@ssen.co.uk¹³, with a contact number of 0800 048 3516¹³. For new supplies to one to four properties, quotes are usually issued within 5 to 15 working days depending on the complexity of the project, and you will hear from your quoter within 5 working days¹⁴. The customer carries real responsibilities on that route: buying materials such as meter boards, meter boxes, ducting and sand, fitting the meter board, laying ducting, registering the MPAN with a supplier, booking the meter installation date, and settling any additional land rights or traffic management payments¹⁴.

One constraint sits over larger generation applications: customers can continue to submit applications to SSEN, but agreements requiring a TIA cannot be progressed or forwarded to the National Energy System Operator until the next application window opens, and the date for that has not been confirmed²⁷. The wider queue problem is explained on the grid connection queue and connections reform.

Moving equipment splits cleanly between the two companies. SSEN will move the service cable and main fuse; your electricity supplier will be the people to move your meter²⁸. SSEN calls this relocating the service cable and main fuse that connects your property to the electricity network²⁸, and its existing supplies team advises contacting the supplier you pay your bills to so you can request the meter move¹². More detail is on moving an electricity meter without moving the supply.

Raising a dispute and using the Ombudsman

If something goes wrong and SSEN cannot fix it, there is a defined escalation route. If SSEN is unable to resolve your complaint to your satisfaction, it will send you a deadlock letter²⁹. After that, you may take the complaint to the Energy Ombudsman for an independent review²⁹.

You do not have to wait for the deadlock letter. Customers can also contact the Ombudsman without a deadlock if the complaint has remained open after 8 weeks²⁹. That 8-week route matters because a deadlock letter depends on SSEN deciding the complaint is finished, whereas the time limit does not.

For a household, the practical points are to keep a record of every call and response, and to use the 8-week rule if correspondence stalls. The Ombudsman's review is independent of SSEN, and its decisions bind the company. General advice on complaining about energy companies, including the difference between supplier and network complaints, is published by Ofgem¹¹.