Do you want a clearer picture of your household’s electricity habits? The best home energy monitors can give you real-time data to help you prevent energy waste and save money on your bills.
Electricity prices have been falling in the UK in 2025 due to lower wholesale prices. However, a UK Parliament briefing shows that current bills are still 43% above their winter 2021/22 levels. With little prospect of large cuts in energy prices in the near future, there’s never been a better time to use an energy monitor to take control of your energy usage.
The best home energy monitors provide detailed insights to spot energy-hungry appliances, cut waste, or keep tabs on rising costs. Some plug directly into your sockets to measure individual devices. Others clamp onto your meter cables to track your entire home’s usage at once.
Many energy monitors also pair with smartphone apps, giving you 24/7 access to live energy data, cost forecasts, and alerts when usage spikes so you’re never caught off guard again.
This guide explores the best home energy monitors in the UK for 2025, including their differences, features, and ease of use. This will help you choose the right monitor to track your electricity use and make smarter energy decisions that lower your bills.
Quick Takeaways on the Best Home Energy Monitors:
- Energy monitors help you track electricity use in real time, showing which appliances cost the most to run.
- Most UK households save 5% to 15% per year after using a monitor to spot waste and adjust usage habits.
- Plug-in monitors are ideal for tracking single appliances, while whole-home monitors offer a full picture of household usage.
- Smart models with apps can send alerts, track trends, and even detect phantom loads from appliances left on standby.
- Top picks for 2025 include Voltaware (whole-home), Emporia Vue (DIY), Efergy (plug-in), and Eve/Tapo smart plugs.
- Smart meters and energy monitors aren’t the same — a smart meter tracks your total usage for billing, while a monitor helps you understand and reduce it.
What Is a Home Energy Monitor and How Does It Work?
A home energy monitor is a device that tracks how much electricity you’re using in real time. Think of it as a fitness tracker for your home’s power. Instead of counting steps, it counts watts, showing you which appliances are drawing the most electricity and when.
There are two main types of monitors on the UK market:
- Plug-in energy monitors plug directly into your wall socket. You then plug your appliance into the monitor. They’re ideal for pinpointing specific energy-hungry devices like tumble dryers, heaters, or gaming PCs.
- Whole-home energy monitors clamp around your meter cables and track total household consumption. Some models break this data down by appliance (using AI or circuit mapping), helping you understand exactly where your electricity goes.
Most energy monitors display data either on a built-in screen or through a companion app. Smart models offer features like:
- Live energy use tracking
- Daily and weekly usage reports
- High-usage alerts
- Estimated costs in pounds and pence
By making your electricity use visible, energy monitors help you cut waste, reduce bills, and make smarter choices about when and how to use energy, especially during peak hours.
Types of Home Energy Monitors: Plug-In, Whole-Home, and Smart Systems Explained
Not all energy monitors are built the same, and choosing the right type depends on what you want to track, how much data you need, and whether you prefer a simple readout or app-based analytics.
Here’s a breakdown of the three main types available in the UK:
1. Plug-In Monitors
These are the simplest and most affordable options. You plug the monitor into a socket, then plug an appliance into the monitor. It shows how much power that single item is using, often in real time.
Best for:
- Identifying energy-hungry appliances
- Quick spot checks
- Beginners or renters
Limitations:
- Only tracks one device at a time
- No whole-house view
2. Whole-Home Clamp Monitors
These devices use a clamp that fits around the main power cable near your fuse box. They measure total electricity usage across the home and send the data to a display unit or app.
Best for:
- Tracking full-house consumption
- Homeowners
- People looking to reduce overall usage
Limitations:
- Installation can be trickier
- Some models require a Wi-Fi connection
3. Smart Energy Monitors with App Integration
These monitors often combine the clamp or plug-in sensor with app functionality. They offer the most detailed insights — including usage history, appliance breakdowns (with AI), cost estimates, and even carbon impact.
Best for:
- Tech-savvy users
- Budget-conscious households
- Smart home enthusiasts
Limitations:
- Higher cost
- May require more setup and ongoing app updates
Choosing the right type comes down to whether you want to monitor a single appliance, your whole home, or gain deeper, app-driven insights into your daily patterns.
Best Home Energy Monitors in the UK (2025)
These are the top-rated energy monitors available today, offering a range of features from single-device tracking to full home monitoring.
Voltaware Smart Home Energy Monitor
The Voltaware monitor is a UK‑optimized clamp-style energy solution that delivers appliance-level insights using AI. It consistently ranks among the top UK energy monitors in 2025. Users praise its straightforward installation (around 5 minutes by a qualified electrician) and its accuracy:
“Voltaware gives you real‑time appliance‑level energy breakdowns using a single, non‑intrusive sensor.” – Reddit
Its intuitive app provides accessible charts, rolling cost estimates, and pattern detection to highlight energy-hungry appliances. It learns and improves over time, increasing its detection accuracy. It can also integrate with the Octopus smart energy dashboard to help users visualise their tariff and optimize peak and off-peak use.
Emporia Vue Energy Monitor
The Emporia Vue is a multi-circuit clamp monitor that tracks up to 16 circuits plus total home usage. Though not officially UK‑distributed, it’s popular among DIY users who install it themselves.
According to users, it’s highly accurate—validated by utility bills—and supports detailed dashboards, automation, and trigger-based energy savings (especially with Home Assistant).
“Dang, this emporia vue is awesome. Finding stuff that is a constant drain…Between those two, that’s 560W almost constant draw. The emporia has paid for itself already.” – DIY Solar Power Forum.
They call it “one of the best energy monitors for homes with solar panels,” offering real-time data on both consumption and generation, useful for PV owners. The flexible CT sensors fit tight UK consumer unit panels and are especially useful where rigid clamps won’t fit.
Efergy Elite Classic / Engage
The Efergy Elite Classic (and Engage Hub variant) is a plug-in style monitor best suited for tracking individual appliance usage or whole-home estimates using wireless sensors.
It’s a solid solution with a simple setup and refresh rates fast enough (≈10s) to observe appliance switching impacts instantly. It features a dependable LCD display, although the screen isn’t as sharp as some rivals and works less well at a distance.
Trustpilot reviews reveal a mixed experience: while many users report satisfaction and encourage usage to change habits (“surprised by my habit changes”), frequent complaints cite poor customer service, app/portal reliability issues, and discontinued online support.
Eve Energy Smart Plug
The Eve Energy Smart Plug is a premium smart plug offering energy monitoring via Thread, Matter, HomeKit, and Bluetooth. It’s simple to set up and offers solid energy tracking and smart home integration, although it’s bulkier than average.
Users praise its accuracy and forward‑looking compatibility with support for Thread Matter, a low-power, mesh-based wireless protocol designed for smart homes. The combination with Matter makes Eve Energy one of the most future-proof smart plugs available in 2025 and ensures broader ecosystems and offline usage without requiring user accounts.
“Eve is the best… it has been flawless and is perfectly privacy focused”. “I’ve got Eve energy sockets in every room and they are rock solid and their Matter over Thread is very stable and works well with my Nanoleaf Essentials GU10s, B22s and Lightstrips, AppleTV 4K leader. They are pricey so it is good to wait for Black Friday/ Prime Day deals.” – Reddit
It has excellent energy monitoring but is more expensive than other smart plugs and has limited Android app support.
Best Energy Monitors Comparison Table (2025):
| Model | Type | Best For | Pros | Cons | Energy Use Features |
|---|---|---|---|---|---|
| Voltaware | Whole-home (AI clamp) | Appliance-level insights via app | Easy setup, smart app, UK-ready | Subscription required, not ideal for solar setups | Requires access to the consumer unit, US-imported |
| Emporia Vue | Multi-circuit clamp | DIY users, solar monitoring | Extremely detailed, solar support, good value | Highly accurate, privacy-focused, Matter-compatible | Tracks up to 16 circuits, supports solar export/import data |
| Efergy Elite Classic | Plug-in / wireless clamp | Basic usage checks, budget monitoring | Affordable, simple setup, no Wi-Fi required | Limited smart features, dated interface | Displays kWh and cost, logs usage over time |
| Eve Energy Smart Plug | Smart plug (HomeKit/Matter) | Single appliance tracking + smart homes | Highly accurate, privacy focused, Matter-compatible | Premium price, best for Apple users | Real-time tracking, cost estimation, and usage pattern alerts |
Which Model Should You Pick?
- Choose Voltaware if you want a UK‑ready, full-home solution capable of learning appliance consumption trends.
- Invest in Emporia Vue if you’re a DIY-savvy homeowner seeking per‑circuit granularity.
- Opt for Efergy if you’re testing a few devices to find energy hogs without accessing your consumer unit.
- Go with Eve or Tapo smart plugs for fast, affordable insights into plug-in appliances — great for renters or tech-light users.
How to Install Home Energy Monitors in the UK
Setting up an energy monitor might sound technical, but most modern models are designed with ease in mind, especially if you know what type you’re working with. Here’s how installation typically works for each kind:
Plug-In Monitors and Smart Plugs
These are the easiest to use. Simply:
- Plug the monitor or smart plug into a standard wall socket.
- Plug your appliance into the monitor.
- View the real-time energy reading directly on the device or through an app.
No tools, no setup — ideal for renters or those who want quick results without electrical work.
Whole-Home Clamp Monitors
These devices use a current clamp (CT sensor) that wraps around the live power cable near your consumer unit (fuse box). In the UK, this typically involves:
- Locating your electricity meter or consumer unit.
- Clipping the CT sensor around the main incoming cable (often labelled “live”).
- Connecting the sensor to a transmitter or Wi-Fi hub.
For safety and legal compliance, installation should be done by a qualified electrician, especially for systems like Voltaware or Emporia Vue.
App Setup and Wi-Fi Compatibility
Most smart monitors and plugs pair with a companion app via Bluetooth, Wi-Fi, or a home hub (Apple HomeKit, Matter, etc.). After setup:
- You can access real-time usage from your phone or tablet.
- Many apps allow for custom alerts, historical graphs, and budgeting tools.
- Ensure your Wi-Fi signal reaches your fuse box or wherever the monitor is placed.
UK Compatibility
- Smart plugs must be rated for UK voltage (220–240V) and use a 3-pin plug — avoid EU/US imports unless adaptors and certification are clear.
- Whole-home monitors must fit your meter type (most UK homes use single-phase, not three-phase systems).
- App support should be available in UK app stores and display energy costs in £GBP.
How Much Can You Save With a Home Energy Monitor?
An energy monitor doesn’t reduce your electricity bill on its own, but it gives you the visibility to change your habits, which can lead to meaningful savings over time. Tracking usage can save you between 5% and 15% annually.
According to NI Direct, consumers can save 5-15% on their electricity bills in the first year of owning an energy monitor, translating to around £25 to £75 off a £500 bill.
Here’s how the savings typically happen:
Identifying Energy Hogs
Monitors reveal which appliances are using the most power, whether it’s an old fridge that runs constantly or a tumble dryer that’s left on too long. Spotting this helps you upgrade or limit usage.
For example, switching a 3kW kettle used 5 times daily to a 2kW version could save £40+ per year.
Tracking Usage Patterns
You might discover that your peak usage happens during expensive hours (especially if you’re on a variable tariff like Octopus Agile or Economy 7). Adjusting routines, like running the dishwasher overnight, can cut costs without changing your lifestyle.
Setting Alerts and Budgets
Smart monitors let you set daily or weekly usage targets. Many send alerts when you’re nearing a budget or if a device is left on. These small nudges add up over time.
For example, reducing standby loads across TVs, routers, and game consoles could save £30–£50 annually.
Behavioural Benefits
Just seeing real-time costs, even 50p/hour for an appliance, changes how people use energy. Users become more mindful once they can see their energy usage in pounds and pence. This thinking is backed up by a survey carried out by Smart Energy GB on the impact of smart meters.
The findings show that in-home displays (IHDs) that come with the smart meter allow people to keep track of how much they’re spending on energy in pounds and pence. This brings something invisible, energy use, into plain sight and makes them more conscious of what they’re using.
Eliminating Phantom Loads
Also known as “vampire energy,” phantom loads are the electricity used by appliances left on standby. Think TVs, routers, game consoles, coffee machines, and printers. Energy monitors expose how much these idle devices really cost.
Once identified, you can plug them into smart plugs that cut power completely when not in use, or set schedules to power them down overnight. According to the Energy Savings Trust, switching devices off standby can help you save £45 in Great Britain and £55 in Northern Ireland.
Where to Buy the Best Energy Monitors in the UK (Safely)
Choosing the right energy monitor is only half the battle — buying it from a trusted retailer ensures you get the real product, proper warranty coverage, and UK-specific compatibility. Here’s where to look.
Recommended UK Retailers
| Retailer | What They Offer |
|---|---|
| Amazon UK | Wide range, verified user reviews, competitive pricing, fast delivery. Look for “sold by” and “dispatched by” Amazon for peace of mind. |
| Currys | Stocks selected smart plugs and home energy tech, including TP-Link and Hive. In-store support available. |
| Argos | Carries well-known models like TP-Link smart plugs and Eve Energy. Great for same-day collection. |
| Octopus Shop | Offers Voltaware and other energy tech directly to their customers, often with integration tips. |
| Emporia (direct) | Ships from the US. While not UK-based, they support UK voltages and are popular among DIYers. |
Retailers to Be Cautious With
- eBay / Marketplace Sellers: Often cheaper, but risks include outdated firmware, no warranty, and incorrect plug types (e.g., EU or US versions).
- Unbranded sites: Avoid sites with little information, no customer reviews, or unclear returns policies — especially if pricing seems “too good.”
What to Check Before You Buy
- Voltage & plug compatibility: Ensure the model supports 220–240V and has a UK 3-pin plug if it’s a smart plug or plug-in monitor.
- Return policy: Look for at least 14–30 days return window with free or low-cost returns.
- Support options: Good brands offer app support, firmware updates, and help if you run into pairing or reading issues.
- Model version: Some listings sell older hardware. Check the model number against the brand’s website or reviews dated 2024 or 2025.
Buying from reputable sources means less frustration and a much higher chance of getting accurate data that actually helps reduce your energy bill.
Energy Monitors vs Smart Meters: What’s the Difference?
It’s easy to assume that energy monitors and smart meters do the same thing — but they’re actually built for different purposes. If you’re trying to decide which one is right for your home, here’s how they compare:
What Is a Smart Meter?
A smart meter is a government-backed device installed by your energy supplier. It replaces your traditional electricity and gas meter and automatically sends readings to your supplier, so you don’t have to submit them manually. Most smart meters also come with an in-home display (IHD) that shows basic usage data in near real time.
Smart meters are free, but you can’t choose the brand or features — it’s supplied by your energy company, and it only tracks total consumption.
In contrast, a home energy monitor is a device you buy yourself. It connects to your electricity supply (via a clamp, smart plug, or socket) and provides far more detailed feedback than a smart meter. Some models break down usage by appliance, track historical data, or connect to an app for long-term energy insights.
You can choose the exact model, features, and type of data you want, whether that’s a full view of your whole home’s usage or just tracking your tumble dryer.
Key Differences at a Glance
| Feature | Smart Meter | Home Energy Monitor |
|---|---|---|
| Installed by | Energy supplier | You (DIY or electrician) |
| Tracks gas & electric | Yes (dual fuel models) | Electricity only (in most cases) |
| Appliance-level breakdown | No | Yes (some models, like Voltaware or Emporia) |
| Historical usage | Limited (24–48 hours on IHD) | Detailed graphs, weekly/monthly comparisons |
| Custom alerts/budgets | No | Yes (smart models with app support) |
| Portability | No (fixed to your home) | Yes (some plug-in or smart plug models) |
| Cost | Free (covered by supplier) | £30–£150 (depending on model) |
Can You Use Both?
Yes. In fact, many households do.
Think of the smart meter as the official tool your supplier uses to bill you, while the energy monitor is a personal tool that helps you understand and control how you use energy.
Using both gives you the full picture: official readings for billing accuracy, plus detailed, appliance-level insights to help you cut costs.
Summary of The Best Home Energy Monitors
If you’re serious about cutting electricity costs, using energy more efficiently, or simply understanding where your power goes, a home energy monitor is one of the smartest investments you can make.
Unlike a smart meter, which offers only a basic snapshot, a good energy monitor puts you in full control, breaking down usage by appliance, highlighting waste, and helping you make informed decisions day to day.
Whether you opt for a simple plug-in model, a smart energy plug, or a full whole-home system with app connectivity, the right monitor gives you the visibility most households are missing. Once you start seeing your usage in pounds and pence, you’ll likely change your habits without even thinking about it.
With models now available to suit every budget, home, and level of tech comfort, there’s no reason to stay in the dark. Start monitoring your electricity use today and take the first real step toward lower bills and smarter energy use.
FAQs on The Best Home Energy Monitors in the UK
How to Monitor Electricity Usage in Home in the UK?
You can monitor electricity use with a smart meter provided by your energy supplier, or with a home energy monitor that tracks consumption in real time. Monitors give more detailed, appliance-level insights and are ideal for cutting waste.
What Is the Best Way to Monitor Electricity Usage?
The most effective method is using a smart energy monitor with app connectivity. These devices provide real-time tracking, usage history, and alerts to help you reduce consumption and costs.
Are Home Energy Monitors Worth It?
Yes. Most households save 5% to 15% per year by identifying waste, eliminating phantom loads, and adjusting usage habits. The best models pay for themselves within 6 to 12 months.
What Is the Difference Between a Smart Meter and an Energy Monitor?
Smart meters are installed by your supplier and track total usage for billing. Energy monitors are personal tools that give detailed, real-time feedback, often down to individual appliances, and help you change how you use energy.
Which Energy Monitor Is Best?
Top-rated UK options in 2025 include Voltaware for whole-home tracking, Emporia Vue for DIY and solar users, Efergy for simplicity, and Eve or Tapo smart plugs for individual appliance monitoring.
Sources and References
UK Parliament – Domestic energy prices
Voltaware – Tariff Compatibility
DIY Solar Power Forum – Whole house power monitor is soooooo cool!
Trustpilot – Efergy
Reddit – Are EVE Energy Smart Plug still the best?
NI Direct – Energy efficiency tips
Smart Energy GB – Smart energy outlook
Energy Saving Trust – What appliances use the most electricity?