The best alternative depends on where you need to measure power. Use a whole-home monitor such as Emporia Vue 3 for panel and circuit data, a smart-meter reader such as Emporia Vue Utility Connect for the simplest installation, smart plugs for individual appliances, or Shelly meters with Home Assistant when local data and automation matter. Sense is now mainly an existing-owner or utility-partner option because panel-installed monitor sales ended on December 31, 2025.
These tools do not all answer the same question. A smart-meter reader shows total household consumption, a panel monitor can separate circuits, and a smart plug measures only the appliance connected to it. The guide below matches each approach to installation effort, rental or ownership status, utility compatibility, cloud dependence, tariffs, solar and EV use, and privacy.
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What a utility portal can—and cannot—tell you
Your utility portal is one view of electricity use, not the only possible meter. It normally presents data from the utility’s revenue meter: useful for bills and total consumption, but not necessarily detailed enough to identify whether an HVAC system, water heater, cooking circuit or refrigerator caused a spike. Independent equipment can read at three other points.
| Measurement point | What you can see | Typical hardware | Panel work required |
|---|---|---|---|
| Smart meter | Total household use reported by the meter | HAN reader such as Utility Connect | No; the reader plugs into an outlet near the meter |
| Main electrical panel | Whole-home load, with optional branch-circuit detail | Emporia Vue 3 | Yes; current-transformer (CT) sensors go in the panel |
| Individual circuit | One breaker or group of breakers | Vue 3 branch CTs or Shelly meters | Usually yes |
| Wall outlet | One plug-in appliance’s watts and cumulative energy | Emporia Smart Plug | No |
| Software aggregation | Combined consumption, solar, storage, tariffs and automations | Home Assistant Energy dashboard | Depends on the underlying sensors |
That distinction explains why there is no single universal “best” monitor. A renter may be unable to open a panel but can still measure a freezer with a plug. A homeowner with solar may need both import and production values. A technically confident owner may prefer a local-LAN meter that continues to feed automations if a vendor cloud is unavailable.
#1 Best Overall
- SAFETY YOU CAN TRUST WITH UL CERTIFICATION: With Emporia Energy, your home energy monitoring is safe, reliable, and certified. The Emporia Vue is UL Listed, meaning it has met rigorous safety standards for electrical products in the U.S. and Canada. This certification ensures that every component has been thoroughly tested to prevent hazards, such as overheating, short-circuiting, or fire, offering you peace of mind as you manage your home’s energy consumption.
- INSTALLS IN CIRCUIT PANEL of most homes with clamp-on sensors. Supports Single phase, Single-split phase, and 2-wire systems. 3-wire systems; 3-phase, 4-wire Wye systems with earthed (TN or TT) neutral (no-Delta) are supported with an additional 200A sensor (sold separately).
- 24/7 ENERGY MANAGEMENT AND MONITORING: Automate, manage and control your home's real power anywhere, anytime to prevent costly repairs, conserve energy, and save costs. Monitor solar / net metering. PROTECTED BY A 1-YEAR WARRANTY.
- LOWER YOUR ELECTRIC BILL: Configure settings in the Emporia Energy App to automate energy management for time of use, peak demand, excess solar, and rewards programs. You can even see live reporting and invaluable savings opportunities instantly. Gauge real-time spending and get actionable notifications and automated energy management to help you reduce costs.
- REAL-TIME ENERGY DATA: REQUIRES 2.4 GHz WIFI WITH AN INTERNET CONNECTION to monitor energy use with iPhone / Android / Web app. Vue sensors collect energy data and are accurate from ±2%. The Vue is UL and CE Listed for your safety. 1 second data is only available in the app (when actively open) and retained 3 hours. Minute and hour data are retained in the cloud. 1 minute data is retained 7 days, 1 hour data is retained indefinitely. Export cloud data whenever you want in the app.
At-a-glance comparison
| Option | Measurement | Installation | Data path | Utility compatibility | Best fit |
|---|---|---|---|---|---|
| Emporia Vue 3 | Mains plus up to 8 or 16 branch circuits | CT installation in electrical panel | Emporia app and web history; active internet is required for key features | Independent of utility portal | Homeowners diagnosing large circuits, solar or EV charging |
| Emporia Vue Utility Connect | Whole-home meter data | Plug-in reader near supported smart meter | Zigbee from meter to Emporia app, iPhone/Android clients and web portal | Only select utility service areas and meters | Renters or owners wanting low-installation total-use data |
| Emporia Smart Plug | One outlet and connected appliance | Plug between wall and appliance | Cloud reporting every second while online | Not required | Freezers, dehumidifiers, gaming PCs, heaters and other plug-in loads |
| Shelly Pro 3EM | Three-phase voltage, current, active and apparent power, and accumulated energy | DIN-rail installation in electrical cabinet | Local LAN with MQTT, HTTP and WebSocket; at least 45 days of one-minute storage | Not required | Three-phase services, solar and local automation |
| Shelly Pro EM | Single-phase measurement with two channels and a relay output | DIN-rail installation in cabinet | Local-LAN integrations | Not required | Single-phase owners who need local control |
| Home Assistant Energy | Aggregates meters, monitors, plugs, inverters and batteries | Software setup; hardware varies | Local or cloud integrations depending on devices | Works with many meter and device integrations | Open, multi-vendor dashboards and custom automations |
| Sense | Existing panel monitors or participating utility smart meters | New panel hardware is no longer sold | Sense Home app | Depends on a utility partnership or existing monitor | Existing owners and supported utility programs |
Emporia Vue 3: the most complete consumer panel option
Emporia describes Vue 3 as a real-time home energy monitor available in mains-only, eight-branch-sensor and 16-branch-sensor configurations. The mains CTs show total household demand; branch CTs let you assign high-use circuits such as heating, water heating, cooking, refrigeration or an EV charger. Emporia’s shop also lists flexible-sensor variants and identifies solar monitoring, alerts, individual-circuit monitoring and EV-charger compatibility.
“Imagine a device that tracks your home energy use every second and helps you manage it efficiently to save money.” — Emporia Energy, Vue product page.
Published configurations, prices and specifications
The following figures are the values Emporia published for 2026 on its product pages. Prices are listed amounts, not a promise that a retailer will keep them unchanged.
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Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →| Configuration | Listed price | Measurement scope |
|---|---|---|
| Mains monitoring | $99.99 | Whole-home consumption |
| Mains plus eight branch sensors | $149.99 | Whole home plus up to eight circuits |
| Mains plus 16 branch sensors | $199.99 | Whole home plus up to 16 circuits |
- Sampling rate: 24,000 samples per second, according to Emporia Energy’s 2026 specifications.
- Published measurement accuracy: ±2%.
- Power consumption: below 3 watts.
- Warranty: one year.
Those numbers describe the device specification, not a guaranteed bill reduction. No controlled, generally applicable household savings percentage is established for every home, tariff or climate.
What installation involves
Vue 3 CTs are fitted around conductors inside the electrical panel. You then identify each monitored circuit in the Emporia app and verify that the direction and channel assignment produce sensible readings. Because the panel contains hazardous voltages even when a breaker appears off, follow Emporia’s installation instructions and local electrical rules. In many regions, a qualified or licensed electrician should perform the work.
The monitor is a strong choice when your question is diagnostic: “Which circuit is responsible for the overnight load?” or “How much does the heat pump draw compared with the rest of the house?” It is less suitable when you need a no-panel installation or guaranteed offline operation. Emporia states that an active internet connection is required for key Vue 3 features, so plan for cloud dependence in the app and web history.
Rank #2
- SAFETY YOU CAN TRUST WITH UL CERTIFICATION: With Emporia Energy, your home energy monitoring is safe, reliable, and certified. The Emporia Vue is UL Listed, meaning it has met rigorous safety standards for electrical products in the U.S. and Canada. This certification ensures that every component has been thoroughly tested to prevent hazards, such as overheating, short-circuiting, or fire, offering you peace of mind as you manage your home’s energy consumption.
- INSTALLS IN CIRCUIT PANEL of most homes with clamp-on sensors. Supports Single phase, Single-split phase, and 2-wire systems. 3-wire systems; 3-phase, 4-wire Wye systems with earthed (TN or TT) neutral (no-Delta) are supported with an additional 200A sensor (sold separately).
- 24/7 ENERGY MANAGEMENT AND MONITORING: Automate, manage and control your home's real power anywhere, anytime to prevent costly repairs, conserve energy, and save costs. Monitor solar / net metering. PROTECTED BY A 1-YEAR WARRANTY.
- LOWER YOUR ELECTRIC BILL: Configure settings in the Emporia Energy App to automate energy management for time of use, peak demand, excess solar, and rewards programs. You can even see live reporting and invaluable savings opportunities instantly. Gauge real-time spending and get actionable notifications and automated energy management to help you reduce costs.
- REAL-TIME ENERGY DATA: REQUIRES 2.4 GHz WIFI WITH AN INTERNET CONNECTION to monitor energy use with iPhone / Android / Web app. Vue sensors collect energy data and are accurate from ±2%. The Vue is UL and CE Listed for your safety. 1 second data is only available in the app (when actively open) and retained 3 hours. Minute and hour data are retained in the cloud. 1 minute data is retained 7 days, 1 hour data is retained indefinitely. Export cloud data whenever you want in the app.
How to use the readings effectively
- Install the mains sensors and confirm that the displayed total is plausible against a utility bill or another known meter reading.
- Add branch sensors to the largest or most mysterious circuits first; monitoring every breaker is not necessary to find the main sources of consumption.
- Label channels by the actual circuit, not by a guess. A mislabeled sensor can lead to incorrect conclusions about an appliance.
- Watch a full day and then a full week. Short observations can miss water-heater cycles, defrost periods or heating and cooling patterns.
- Use alerts for unusual demand or a circuit that remains active when it should be idle.
Emporia Vue Utility Connect: a simple smart-meter view
Utility Connect reads usage wirelessly from a compatible advanced-metering-infrastructure (AMI) smart meter through Zigbee. It plugs into an outlet near the meter and sends readings to the Emporia app, iPhone and Android clients, and web portal. Emporia lists the device at $39.99 on the cited shop page.
The low installation effort is its main advantage: there are no CT clamps to place in a panel and no breaker labels to configure. It is therefore attractive for a renter or for an owner who wants total household consumption without electrical work.
Compatibility check before buying
- Find the utility and service territory on Emporia’s supported-utility information.
- Confirm that your specific meter exposes the HAN data required by Utility Connect; a smart meter by itself does not guarantee that the interface is enabled.
- Check that the outlet near the meter has reliable power and that the wireless path is practical.
- Complete pairing in the Emporia app and compare the first readings with your utility’s meter or bill.
Utility Connect does not provide individual-circuit monitoring or energy-management features in Emporia’s comparison. It can tell you that the whole house used more electricity, but not which breaker caused the increase. If your utility is not listed or does not enable the required HAN channel, choose a plug, panel monitor or local meter instead.
Smart plugs: the safest way to answer one-appliance questions
An Emporia Smart Plug sits between a wall outlet and one appliance. It measures real-time watts, voltage and cumulative kilowatt-hours, reports data to the cloud every second while online, and supports remote, scheduled or voice control. This makes it useful for a freezer, dehumidifier, gaming computer, aquarium equipment or space heater—loads that use a normal plug and can be isolated from the rest of the home.
Setup and measurement procedure
- Check the plug’s electrical rating against the appliance and avoid using it for equipment whose startup current exceeds the rating.
- Plug the Smart Plug into the wall, pair it with the Emporia app and give it a precise name such as “Basement freezer.”
- Connect only the target appliance, not an entire power strip containing unrelated loads.
- Record a representative period. A refrigerator may need several days to show compressor cycling; a space heater can reveal its load within minutes.
- Use cumulative kWh for energy cost calculations and instantaneous watts to identify active or standby states.
A smart plug cannot replace a whole-home monitor. It sees only the connected outlet, may not be appropriate for hard-wired appliances, and depends on its wireless and cloud connection for remote reporting and control.
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1Scan for outdated or missing drivers - takes under a minute2Repair Windows errors before they cause bigger problems3Fix the driver behind crashes, sound loss and screen glitchesShelly Pro 3EM and Pro EM: local-LAN panel metering
Shelly Pro 3EM is a DIN-rail three-phase meter designed to operate on a local network. It reports accumulated energy plus instantaneous voltage, current, active power and apparent power for each phase. Shelly documents at least 45 days of one-minute data storage and local interfaces including MQTT, HTTP and WebSocket.
Rank #3
- SAFETY YOU CAN TRUST WITH UL CERTIFICATION: With Emporia Energy, your home energy monitoring is safe, reliable, and certified. The Emporia Vue is UL Listed, meaning it has met rigorous safety standards for electrical products in the U.S. and Canada. This certification ensures that every component has been thoroughly tested to prevent hazards, such as overheating, short-circuiting, or fire, offering you peace of mind as you manage your home’s energy consumption.
- INSTALLS IN CIRCUIT PANEL of most homes with clamp-on sensors. Supports Single phase, Single-split phase, and 2-wire systems. 3-wire systems; 3-phase, 4-wire Wye systems with earthed (TN or TT) neutral (no-Delta) are supported with an additional 200A sensor (sold separately).
- 24/7 ENERGY MANAGEMENT AND MONITORING: Automate, manage and control your home's real power anywhere, anytime to prevent costly repairs, conserve energy, and save costs. Monitor solar / net metering. PROTECTED BY A 1-YEAR WARRANTY.
- LOWER YOUR ELECTRIC BILL: Configure settings in the Emporia Energy App to automate energy management for time of use, peak demand, excess solar, and rewards programs. You can even see live reporting and invaluable savings opportunities instantly. Gauge real-time spending and get actionable notifications and automated energy management to help you reduce costs.
- REAL-TIME ENERGY DATA: REQUIRES 2.4 GHz WIFI WITH AN INTERNET CONNECTION to monitor energy use with iPhone / Android / Web app. Vue sensors collect energy data and are accurate from ±2%. The Vue is UL and CE Listed for your safety. 1 second data is only available in the app (when actively open) and retained 3 hours. Minute and hour data are retained in the cloud. 1 minute data is retained 7 days, 1 hour data is retained indefinitely. Export cloud data whenever you want in the app.
Shelly Pro EM is the single-phase alternative. It has two measurement channels and a relay output, which can support local control as well as measurement when the installation and load are appropriate.
Why local access matters
With a local-LAN meter, your dashboard or automation server can read values without sending every measurement to a vendor cloud. MQTT is useful for a message-bus architecture; HTTP and WebSocket interfaces suit custom software and real-time displays. Local operation also makes Shelly a natural source for Home Assistant, although building and maintaining that integration requires more technical work than using one vendor’s app.
When to choose Shelly
- Choose Pro 3EM for a three-phase service, multi-phase solar system or a need to compare phase loads.
- Choose Pro EM for a single-phase service where two channels and a relay are useful.
- Choose a Shelly device when local retention, open protocols or custom automations outweigh turnkey setup.
- Do not choose it solely to avoid an app if you are not prepared for DIN-rail installation and network configuration.
Both products involve work inside an electrical cabinet. CT orientation, conductor identification, phase mapping and enclosure space matter. Have a qualified professional perform the installation when local rules or your experience require it.
Home Assistant Energy: a software layer for mixed hardware
Home Assistant’s Energy dashboard accepts an electricity meter, energy monitor, smart plug, solar inverter or battery from many brands. It can present consumption, production, storage, tariffs and device-level use in one interface. Because it is a software layer, it can combine a whole-home source with a few appliance plugs instead of forcing every measurement into one manufacturer’s ecosystem.
“Home Assistant is open and works with hardware from many different brands, so you are not locked into one ecosystem.” — Home Assistant documentation.
Data sources and local options
Home Assistant’s grid-integration guidance says the electricity meter itself is often the best source. It also identifies Shelly EM as an off-the-shelf option and describes local approaches such as Home Assistant Glow and readers connected to a meter’s P1 port. P1 support is regional and meter-dependent, so confirm that your meter exposes a compatible port before buying hardware.
Rank #4
- Comprehensive Whole-Home Monitoring: Includes the Emporia Vue Energy Monitor with 16 sensors to track usage from your main panel and up to 16 individual circuits. Gain second-by-second visibility into your home’s energy use.
- Smarter Control with 4 Wi-Fi Smart Plugs: Remotely control and automate devices plugged into the included 4-pack of Emporia Smart Plugs. View energy usage per outlet and create schedules to reduce standby power waste.
- Track and Save with the Emporia App: Use the free Emporia app (iOS & Android) to track electricity usage, view trends, and set up automations. Data is securely stored in the cloud for anytime access.
- 24/7 Energy Management and Monitoring: Automate, manage and control your home's real power anywhere, anytime to prevent costly repairs, conserve energy, and save costs.
- Lower Your Electric Bill: Configure settings in the Emporia Energy App to automate energy management for time of use, peak demand, excess solar, and rewards programs. You can even see live reporting and invaluable savings opportunities instantly. Gauge real-time spending and get actionable notifications and automated energy management to help you reduce costs.
Basic Energy dashboard setup
- Install Home Assistant on supported hardware and ensure it can reach the devices or integrations that will provide energy data.
- Add a cumulative energy sensor for grid import. If available, use the utility meter or a local meter integration rather than estimating from instantaneous watts.
- Add solar production, battery charge and discharge sensors when those systems exist.
- Open the Energy configuration, assign each sensor to its role and select the correct unit and accumulation behavior.
- Define electricity tariffs if your supplier charges different rates by time period. Verify the time zone and schedule so costs do not shift by an hour after daylight-saving changes.
- Allow the dashboard to collect enough history before judging patterns. A single day rarely represents heating, cooling or seasonal loads.
Automation possibilities
Once the energy entities are correct, Home Assistant can shift flexible loads to cheaper periods, alert when consumption exceeds a threshold, or start an appliance when solar production is available. Automation should respect the appliance’s duty cycle and safety requirements; a tariff rule must not repeatedly power-cycle a compressor or heating system.
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The trade-off is maintenance. You must update integrations, preserve backups, correct units and investigate missing data. Home Assistant is best for readers who value open integrations and custom control, not for someone who wants a monitor that works immediately with no configuration.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Sense: understand the changed product status
Sense’s support information says that, starting December 31, 2025—and possibly sooner—it would no longer sell home monitors installed in electrical panels. The company says its technology is being built into next-generation smart meters through utility partnerships.
The Sense Home app remains available through existing monitors or participating utilities. Sense’s product information says neither Sense nor the utility charges subscription fees for the app and that Sense will not sell personal data. For a new purchase, treat Sense as a compatibility-dependent utility service or an existing-owner platform, not as the default panel-hardware recommendation.
Choose by living situation and goal
You own the home and need circuit-level answers
Start with Emporia Vue 3 if you want to identify HVAC, water heating, cooking, solar or EV circuits. Select the eight- or 16-branch configuration based on how many circuits you genuinely need to separate. A Shelly meter plus Home Assistant is the alternative when local protocols and custom automation are more important than a turnkey cloud app.
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Use Utility Connect only after confirming that your utility and meter support it. If they do not, use smart plugs for the appliances that matter most. These choices avoid opening the panel and can move with you when you change homes.
Best Value
- ⚡ EASY INSTALLATION: Installs in circuit panel of most homes with clamp-on sensors. Supports single-phase up to 240VAC line-neutral; single, split-phase 120/240VAC; and three-phase up to 415Y/240VAC (no Delta). The branch lines can automatically match different phases and have no restrictions in terms of quantity and voltage.Panels with access only to busbars will need flexible sensors available from SEM-Meter.
- ⚡ ENERGY MONITORING ANYTIME, ANYWHERE: Monitor your home's real power anywhere, anytime to prevent costly repairs, conserve energy, and save costs. Monitor solar / net metering. Light commercial 3 phase option available as a separate bundle. Protected by a 1-year warranty.
- ⚡ VARIOUS ELECTRICAL APPLIANCE MONITORING: Comes with 16 50A sensors to accurately monitor your air conditioner, furnace, water heater, washer, dryer, range, etc.
- ⚡ LOWER YOUR ELECTRIC BILL: SEM-Meter measures real-time spending and gets actionable notifications to understand where savings can be made, both to lower your electric bill and to conserve energy and protect the planet’s resources. Be an environmentalist.
- ⚡ REAL-TIME ENERGY DATA: Connect SEM-Meter device via 2.4GHz WiFi to monitor energy usage, with an accuracy range of 1%. View usage in real time through Android/Apple software. Statistics of power usage in now/day/week/month/year format: the validity period of hourly exported data is 90 days, and the exported data of day/month/year data is permanent, available at any time Export from application.
You have solar or an EV charger
Panel-level monitoring can show the relationship between production, household demand and charging. Vue 3 supports solar monitoring and EV-charger compatibility according to Emporia’s product information. Shelly Pro 3EM is suited to three-phase systems and local integrations. Home Assistant can combine grid, solar, battery and device entities so imported energy is not confused with energy generated on site.
You want data to remain on your network
Prefer Shelly’s local interfaces and feed them to Home Assistant or another local system. Confirm that the selected dashboard stores history locally and that your network has a backup plan. Vue 3 and Smart Plug features rely more heavily on Emporia’s cloud connection, while Utility Connect sends readings through the Emporia service.
How to find which appliances use the most electricity
A reliable diagnosis combines a whole-home baseline with targeted measurements rather than guessing from an appliance’s nameplate.
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- Identify loads that are hard-wired or on dedicated breakers; use Vue 3 or Shelly circuit channels for those.
- Place smart plugs on major plug-in candidates one at a time and observe complete operating cycles.
- Compare the sum of measured circuits and appliances with the whole-home total. The difference includes unmonitored circuits, standby loads and measurement tolerance.
- Investigate loads that run continuously, start unexpectedly or remain high when the home is unoccupied.
- Change one behavior or control schedule at a time, then compare equivalent days rather than relying on a single low bill.
This approach distinguishes a high instantaneous wattage from high energy use. A kettle may draw many watts for a few minutes, while a dehumidifier or poorly controlled heater can consume more kilowatt-hours through long runtimes.
Tariffs, privacy and data retention
Tariff calculations require both accurate cumulative energy and the correct time-of-use schedule. Home Assistant can apply tariff periods to imported energy, while vendor apps may expose tariff or cost features differently by region. Enter the rate structure supplied by your electricity provider and check whether fixed charges, taxes and export credits are included; a monitor’s energy total is not automatically the same as the final bill.
Cloud-based products are convenient for remote access and app history, but they depend on account services and internet availability. Local-LAN devices reduce that dependency, yet you remain responsible for backups, authentication and securing the network. Read the current privacy terms before connecting a monitor to an account, especially if multiple household members will receive alerts.
Installation and verification checklist
- Confirm voltage, phase count, conductor size and enclosure space for the exact regional model.
- Check current price, stock, firmware support and utility compatibility immediately before ordering; these can change after publication.
- Use manufacturer instructions for CT direction, sensor placement, pairing and calibration.
- Have panel-mounted CT and DIN-rail work completed by a qualified or licensed professional when required by local law or when you are not trained for energized equipment.
- After installation, compare readings with the utility meter, a known appliance load or a controlled breaker test.
- Look for impossible values such as negative import, a phase reading on an unused circuit or a total that is lower than a known large load.
- Keep firmware, app integrations and Home Assistant backups current.
Which alternative should you use?
Choose Emporia Vue 3 for the clearest consumer whole-home and circuit-level view. Choose Utility Connect when a supported utility and meter make a plug-in whole-home reader possible. Choose a smart plug for one appliance or a rental. Choose Shelly Pro 3EM or Pro EM with Home Assistant when local-LAN access, open protocols, three-phase measurement or advanced automation is the priority. Consider Sense only if you already own its hardware or your utility offers a participating smart-meter service.
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