Trystan Casey
In the UK, electricity is supplied by a range of energy companies, such as British Gas and EDF. These companies offer various tariffs and meters, including prepayment meters, smart meters, and time-of-use tariffs, which charge different rates depending on the time of day or night. While it is uncommon for electricity companies to turn off the power, it may happen in the case of a planned power cut, usually due to insufficient supply to meet demand. To prevent power cuts, the National Energy System Operator (NESO) works to ensure there is enough power available and encourages consumers to reduce their electricity usage during peak hours. Additionally, some electricity meters offer 'non-disconnection' hours, where the power will not be cut off immediately if the credit runs out during certain times, such as weekends or overnight.
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What You'll Learn
Prepayment meters and emergency credit
Prepayment meters allow users to pay for their gas and electricity in advance, offering more control over energy usage and budgeting. However, if users run out of credit, their supply may be cut off, leading to potential inconvenience and higher costs. To address this, some energy suppliers offer emergency credit, a temporary solution that prevents service interruptions. Emergency credit is typically available for a limited amount, ranging from £5 to £15, depending on the supplier. This credit must be repaid, and users should be aware of potential higher rates associated with its usage.
EDF Energy, for instance, offers a £6 emergency credit limit for gas and electricity on traditional prepayment meters, while their Smart PAYG meters have a £10 limit. Other suppliers, like British Gas, have recently increased their emergency credit limit to £10, providing a larger safety net for customers. Utilita stands out with a higher limit of £15, along with "friendly credit hours" that ensure uninterrupted supply during specified periods.
It is important to note that emergency credit is intended for unexpected situations. If individuals consistently struggle to top up their meters, they should contact their supplier to discuss alternative arrangements. Suppliers are obliged to treat customers fairly and consider their circumstances. Options may include agreeing on smaller repayment amounts or switching to a credit meter, where payment is made after energy usage.
To access emergency credit, users should refer to their supplier's website or contact them directly. Some suppliers may automatically provide temporary credit when credit runs out. Additionally, individuals may qualify for extra temporary credit if they are deemed 'vulnerable', which can include factors such as health conditions, age, and financial hardship. Local councils and fuel vouchers can also provide support in obtaining credit.
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Power cuts and the National Grid
Power cuts can be planned or unplanned and are usually caused by unforeseen circumstances such as extreme weather conditions. Planned power cuts may be due to essential maintenance being carried out on the network by the local distribution network operator (DNO). DNOs own and maintain the power lines that connect to homes and businesses. If you live in the Midlands, South West England, or South Wales, your DNO is the National Grid. If you experience a power cut, you can report it by calling 105. This will connect you to your DNO.
The National Energy System Operator (NESO) is responsible for ensuring there is enough power to meet demand. In the event that there are periods where margins (supply available vs expected demand) are tight, NESO can increase the amount of power being generated, ask large industrial customers to reduce power consumption, and pay customers to use less energy at certain times through the Demand Flexibility Service.
Emergency planned power cuts, or rota load disconnections, are implemented when demand for electricity is greater than the levels available from electricity generators. These temporary power cuts protect the integrity of the electricity system by temporarily disconnecting a small percentage of the network.
In preparation for winter, the National Grid implements additional measures to respond to conditions that pose a greater risk of power cuts. These include wet, windy, and cold conditions, as well as the increasing likelihood of extreme weather events caused by climate change. The National Grid teams work 24/7 to restore power supply as quickly and safely as possible. Power can often be restored in minutes by control centre staff using a remote process called 'switching', where electricity is re-routed around the fault.
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Off-peak electricity and cost savings
Off-peak electricity refers to the quieter periods when people use less electricity and grid demand is lower. These periods usually occur overnight, on weekends, and during peak holiday periods.
Using off-peak electricity can help you save money on your energy bills. Some energy providers offer reduced rates during off-peak hours, allowing you to power your home at a lower cost compared to peak hours. For example, British Gas's Economy 7 tariff provides cheaper, off-peak electricity during seven hours of the night when demand is low. This electricity can be stored and used at any time, helping you save money on your energy bills.
Time-of-use tariffs or off-peak electricity tariffs offer different rates for electricity based on the time of day, encouraging you to use energy when demand is lower and prices are cheaper. For instance, E.ON's Next Drive tariff provides a long off-peak period with rates as low as 7.5p per kWh between 12 am and 6 am every day. Similarly, British Gas's Electric Vehicle tariff offers cheaper off-peak electricity every day between 12 am and 5 am.
To make the most of off-peak electricity, it is essential to understand time-of-use tariffs and choose a suitable tariff plan. Some tariff plans are specifically designed to offer greater savings during off-peak hours. For instance, E.ON's Next Pumped tariff offers cheaper electricity rates overnight (typically 10 pm to 6 am) for customers with air source heat pumps or electric boilers.
Smart meters are often required for these tariff plans to accurately track your consumption and ensure you benefit from the precise off-peak electricity times. By shifting your electricity usage to off-peak hours, you can not only save money but also help decrease the strain on power plants, contributing to a greener environment.
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Smart meters and non-disconnection hours
Smart meters are the next generation of energy meters in Great Britain, upgrading the energy system. They can help people manage their energy bills and are bound by stringent regulations that safeguard against the disconnection of energy supply. These protections apply equally to smart meters and traditional meters, with Ofgem enforcing strict guidelines on remote energy cut-offs.
Smart meters cannot cut off the power supply by themselves. In some rare instances, energy suppliers can switch off the energy supply, but only under very strict circumstances. This is true no matter what type of meter you have. Strict regulations protect you against your energy supplier disconnecting your gas or electricity. This protection is as strong with smart meters as with traditional meters.
Energy companies must not disconnect customers without first trying to help them pay off their debts through a payment plan. The only difference is that suppliers would need to apply for a warrant to switch off supply for a customer with a traditional meter.
Many electricity prepayment meters have 'non-disconnection hours' at times when it's hard to get to a shop. If your meter has this function, you won't be cut off if you run out of credit at these times. However, you will be disconnected if you still have no credit at 11 am the day after using electricity during a non-disconnection time.
You can also contact Citizen's Advice if you are unsure about your options and need more support. If you are in a vulnerable situation, someone at their Extra Help Unit may be able to take on your case.
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Energy suppliers and demand flexibility
In the UK, electricity companies do not typically turn off your power. However, if you have a prepayment meter, your electricity will be cut off when you run out of credit. Many prepayment meters have non-disconnection hours during which your electricity will not be cut off, even if you run out of credit. This is to accommodate for times when it is difficult to get to a shop to top up. If you use electricity during a non-disconnection hour, you will be disconnected at 11 am the following day if you still have no credit.
Energy suppliers in the UK are increasingly incentivizing customers to voluntarily reduce their electricity consumption during periods of peak demand on the British national grid. This Demand Flexibility Service (DFS) was developed by the National Grid Electricity System Operator (NGESO) in response to the sudden rise in international gas prices. The service intends to reduce risks to the electricity grid and lower costs for consumers.
DFS is a market-based product, meaning different providers will offer different incentives and requirements. To receive an incentive, such as money off your energy bill or a voucher, you will need to reduce your energy use compared to your normal usage during DFS events. Households can choose to run power-hungry appliances before or after the event or reduce energy usage by, for example, using a microwave instead of an oven.
The scheme is funded through Balancing Services Use of System charges, which are levied on domestic and business electricity prices. As the contribution of intermittent low-carbon energy sources continues to rise on the National Grid, the need for balancing actions will also increase. The DFS is one component of a broader shift towards a flexible energy grid, where demand will dynamically adjust to match the availability of power.
Demand-side management, also known as demand-side response, is where businesses adjust their energy usage during peak times or when the renewable supply is high, contributing to grid stability and earning revenue. This offers the system additional flexibility and helps keep Britain's electricity system in balance.
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Frequently asked questions
In the UK, there are no specific times for electricity to be cut off. However, power cuts may occur during periods of tight margins, when supply needs to be reduced to protect the electricity network from damage.
Non-disconnection hours vary depending on the energy supplier and the type of meter. For example, EDF Energy has non-disconnection hours during weekends and holidays, while British Gas offers Friendly Emergency Credit during evenings and mornings.
To avoid disconnection, ensure you have sufficient credit on your meter, especially outside of non-disconnection hours. You can top up your credit at a shop or, in some cases, over the phone.
Off-peak hours vary between suppliers, locations, and seasons. Generally, off-peak hours refer to quieter periods with lower electricity demand, typically overnight, on weekends, and during holiday periods. Some suppliers offer reduced rates during these times.
