Umair Gaines
There are several ways to check your electricity usage in the UK. One way is to install a smart meter, which automatically sends readings to your supplier and features a display screen showing how much energy has been used. You can also calculate your cost per unit by dividing the total monthly cost by the total energy consumption. Additionally, you can use energy monitoring devices such as power meters, energy monitors, and sub-meters to track electricity consumption for specific appliances, entire properties, or areas with their own power circuits. These devices provide informative readings, including watts, kilowatt-hours, and cost. Understanding your electricity bill and comparing energy tariffs can also help identify your energy usage patterns and costs.
| Characteristics | Values |
|---|---|
| Devices to check electricity usage | Power Meter, Energy Monitor, Sub Meter, Eyedro electric monitor, Clamp-on ammeter, P3 Kill A Watt EZ, Sense Energy Monitor, Smart meter |
| How to use a Power Meter | Plug the power meter into an electrical outlet and then plug your appliance into it |
| Readings provided by a Power Meter | Watts, kilowatt-hours, and cost |
| How to use a Sub Meter | Install a Sub Meter for large electrical loads like EV chargers, air conditioners, or hot water systems |
| How to use an Eyedro electric monitor | Plug it into your electrical panel to trend real-time and historical electric usage on individual lines |
| How to use a Clamp-on ammeter | Put a clamp-on ammeter on the various hots in your breaker box |
| How to use P3 Kill A Watt EZ | Plug it into an outlet and then plug the device/appliance into it |
| Readings provided by P3 Kill A Watt EZ | Consumption in kWh for a day, week, month, or year, and line quality |
| How to use a Smart meter | Install a smart meter and connect it to a secure smart data network |
| Readings provided by a Smart meter | Total energy consumption in pounds and pence |
| Calculating the cost per unit | Divide the total monthly cost by the total energy consumption (in kWh) |
| Calculating the kWh consumption of an appliance | Multiply the maximum power in watts by the duration of usage in hours, then divide by 1000 |
| Reducing energy costs | Turn off appliances on standby, use energy-efficient appliances, reduce heating, wash clothes at lower temperatures, air dry clothes, use natural light, don't overfill the kettle, buy energy-efficient appliances, use electricity at the 'greenest' time of day |
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What You'll Learn
Understand your electricity bill
Understanding your electricity bill can help you identify areas where you can save money and reduce your energy consumption. Here are some ways to decipher and make sense of your electricity bill:
Cost per Unit
Take the total monthly cost from your electricity bill and divide it by the total energy consumption (in kilowatt-hours or kWh). This calculation will give you the cost per unit of electricity consumed. This is a useful metric to understand, as it allows you to estimate the costs associated with running different appliances.
Appliance Energy Consumption
The power consumption of an appliance is typically listed in watts on the packaging or the device itself. To calculate the energy consumption in kWh, you can multiply the wattage by the duration of use in hours and then divide that number by 1000. This calculation will provide a rough estimate of the appliance's energy usage.
Smart Meters
Smart meters are a great way to track your energy consumption. They are connected to a secure smart data network, allowing readings to be sent automatically to your supplier. This helps ensure accurate billing. Smart meters also feature a display screen that shows how much energy has been used in pounds and pence, making it easier to monitor your usage.
Energy Audits
Consider requesting an energy audit from your power company. They can help identify areas where energy may be wasted, such as leaking ductwork or issues with your electrical panel. Some companies may offer this service for free.
Energy Monitoring Devices
Plug-in power meters, energy monitors, and sub-meters are all tools that can help you understand your electricity usage better. These devices can measure the energy consumption of individual appliances, specific areas, or an entire property. They provide informative readings, including watts, kilowatt-hours, and cost.
Daily Usage Patterns
Pay attention to your daily usage patterns to identify energy-intensive activities. For example, doing a large load of laundry or taking long showers can impact your power usage. Small changes, such as lowering washing temperatures or air-drying clothes, can help reduce energy consumption.
By utilising these methods, you can gain a clearer understanding of your electricity bill and identify areas where you can optimise your energy usage and save costs.
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Use energy monitoring devices
Energy monitoring devices provide real-time power consumption statistics for single outlets or entire homes. They can be used to monitor electricity usage and adjust consumption patterns.
Energy monitors are small devices installed in the circuit breaker panel of a house or apartment. They use current transformers attached to your electrical mains to identify which devices are drawing power and how much they are drawing. They can also provide more detailed information on a household's energy consumption than a typical monthly electricity bill.
If you have a smart meter, your energy supplier may have offered you an energy monitor (also called an 'in-home display'). This will show your electricity usage, and also your gas usage if you have it. You can set your energy monitor to display your energy consumption in pounds (£) or kilowatt hours (kWh).
There are also standalone energy monitors that can be purchased, but these can only monitor electricity.
One example of an energy monitor is the Sense Energy Monitor, which uses machine learning to identify individual appliances and their electricity usage. It can be used to identify appliances that consume energy even when not in use, and it provides tips on how to save energy and be more efficient.
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Compare energy tariffs
Comparing energy tariffs can help you find a cheaper deal and bring down your energy bills. There are a few things to keep in mind when comparing energy tariffs.
First, it's important to understand the different types of tariffs available. The two main types are fixed tariffs and variable tariffs. With a fixed tariff, the unit cost of energy is set at an agreed rate for a fixed period, usually between 12 and 24 months. This means that you are protected from any increases in energy prices during the length of your tariff. On the other hand, variable tariffs can go up or down depending on the wholesale energy market and the price cap set by the energy regulator, Ofgem.
When comparing tariffs, it's essential to consider your estimated energy usage and the associated costs. The unit rate and standing charge will determine how much you are charged for your energy usage. You can use an energy comparison site or formula, such as the Ofgem tariff comparison rate, to calculate the overall cost of a tariff by taking into account standing charges, unit rates, and discounts.
Additionally, it's important to be aware of any exit fees associated with switching tariffs. Fixed tariffs typically have exit fees if you switch before the end of your contract, so be sure to check the terms and conditions before making any changes.
While comparing energy tariffs can help you find a better deal, it's worth noting that due to the energy market crisis, there may not be many cheaper deals available at the moment. However, the market is constantly changing, and it's worth regularly checking for updates to find a suitable tariff that meets your needs.
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Get an energy audit
An energy audit can be a great way to understand your energy usage and identify areas where energy is being wasted. This can help you save money and reduce your carbon footprint.
Energy audits are not just for businesses; they can also be done for homes. A home energy audit can help you understand your home's energy use and provide a roadmap for reducing energy consumption and lowering bills. An energy auditor will evaluate your home and provide recommendations to improve its efficiency. This may include suggestions such as replacing windows, switching to LED lights, adding insulation, and sealing air leaks.
If you are conducting an energy audit for a business, you should start by gathering information on your energy consumption. This includes recent energy bills, dating back at least a year, for power, heating, and air conditioning. You should also familiarise yourself with your business premises, including the number of occupants, heating and cooling zones, thermostat settings, and any appliances or devices that consume significant energy.
An energy consultant or auditor can then help you formulate a plan to reduce your energy consumption and cut costs. They will take into account various factors, including the building's interior, exterior, fixtures, and equipment, to determine how these systems interact and impact energy usage.
Additionally, smart meters can be a useful tool to track your energy usage. They provide real-time data on your total power consumption and help ensure accurate billing. However, they may not provide detailed information on which specific appliances or areas are consuming the most energy.
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Calculate your cost per unit
To calculate your cost per unit of electricity, you will need to refer to your electricity bill. Take the total monthly cost and divide it by the total energy consumption (measured in kilowatt hours or kWh). This will give you your cost per unit.
It is worth noting that this calculation will only be accurate if your bill is based on a recent meter reading or on monthly readings that you have taken yourself and sent to your supplier. Bills based on estimated readings may not be accurate, as they are based on approximations such as previous energy usage and the time of year.
If you have a smart meter, you can easily view your total energy consumption and cost per unit on the display screen. However, smart meters do not show you which appliances are using the most energy. To identify specific energy-consuming appliances, you can use a plug-in power meter, such as the P3 Kill A Watt EZ, available on Amazon. You plug the power meter into an electrical outlet and then plug your appliance into it. It will show you various readings, including watts, kilowatt-hours, and cost.
Alternatively, you can calculate the kWh consumption of an appliance by looking at the packaging or the device itself. There will be an information panel that tells you the maximum power in watts. Take this figure, multiply it by the duration the appliance is used for in hours, and then divide by 1000 to get your kWh consumption. This method provides a rough estimate and may not be entirely reliable.
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Frequently asked questions
You can check your electricity usage by installing an electricity usage monitor, such as an Eyedro electric monitor or a P3 Kill A Watt EZ. These devices can be plugged into an outlet, and then you can plug your appliance into them to measure its electricity usage.
The average UK household uses between 8.5 and 10 kilowatt-hours (kWh) per day.
You can check your annual electricity usage by looking at your annual statement from your energy provider. This will give you an overview of your total energy use and spending over the year.
A smart meter is the latest generation of gas and electricity meter that puts an end to estimated billing, which can lead to inaccuracies and overcharging. It is connected to a secure smart data network and automatically sends readings to your supplier. It also features a display screen that shows how much energy has been used in pounds and pence, helping you track your usage.
You can calculate the electricity usage of your appliances by looking at the information panel on the packaging or the device itself. This will tell you the maximum power in watts. You can then multiply this figure by the duration the appliance is used for in hours and divide it by 1000 to get your kWh consumption.
