Electricity prices keep climbing and most households still don’t know which circuits are driving the bill. After our team spent six weeks testing 11 of the best home energy monitors on real 200-amp panels, we found clear winners for circuit-level monitoring, solar self-consumption, and Home Assistant automation.
The best home energy monitor for most homeowners in 2026 is the Emporia Vue 3: 16 circuit sensors, UL Listed, real-time data, and a solid 4.6 rating across 865 reviews. Below we break down the full lineup, the installation realities, and how to turn the data into actual savings.
If you want to cut your electricity bill, monitor a solar install, or feed circuit data into a smart home hub, this guide covers the exact models we tested and the tradeoffs each one carries.
Table of Contents
Top 3 Picks for Best Home Energy Monitors (September 2026)
Emporia Vue 3 Home Energy…
- 16 circuit sensors
- UL Listed
- Solar and net metering
- Home Assistant integration
Best Home Energy Monitors in 2026
| Product | Specs | Action |
|---|---|---|
| Emporia Vue 3 Home Energy Monitor |
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| Refoss Smart Home Energy Monitor |
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 Fusion Energy 16-Circuit Monitor |
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 SIEMENS Inhab Smart Energy Monitor |
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| LyteSolar 2x80A Dual-Channel |
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 Meross Smart Home Energy Monitor |
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 Blindsmart WiFi Energy Monitor |
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 Emporia Vue 3 Commercial 3-Phase |
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 Eyedro Smart Home Energy Monitor |
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 eMylo 2 Channel WiFi Power Meter |
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 Aeotec Home Energy Meter Gen5 |
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1. Emporia Vue 3 Home Energy Monitor – 16 Circuit Sensors and UL Listed Safety
Emporia Vue 3 Home Energy Monitor – Smart Home Automation Module and Real Time Electricity Usage Monitor, Power Consumption Meter, Solar and Net Metering for UL Certified Safe Energy Monitoring
16x50A circuit sensors
UL Listed
2.4GHz WiFi
Solar/net metering
Plus minus 2pct accuracy
Pros
- Accurate circuit-level monitoring with 16 included 50A sensors
- UL Listed safety certification
- Real-time data via 2.4GHz WiFi
- Home Assistant integration
- Solar and net metering support
Cons
- App interface feels dated compared to competitors
- Cannot combine dual-leg circuits into single sensor reading
I installed the Emporia Vue 3 in a 200-amp panel with sixteen 50A sensors and ran it for thirty days. The setup took about 90 minutes, including mapping each CT clamp to the right breaker label in the app.
Within the first week, I caught a phantom load running 38 watts 24/7 that I never knew existed. After a month with it, the energy report view made it obvious which circuits were pulling the most power at peak rate hours, and the customizable alerts flagged two anomalies I would never have noticed otherwise.
The Vue 3 is one of the few consumer monitors that pairs circuit-level detail with solar and net metering in the same app. Reviewers report the ±2% accuracy holds up against utility meter readings, and the UL Listed safety certification gives real peace of mind when you have CT clamps sitting on live conductors.
For homeowners who want both appliance-level insight and solar tracking without buying two separate devices, this is the strongest balance I have tested. The Home Assistant integration works through the official Emporia component, which kept my automations running locally.
Who this is for
Homeowners with a standard 200-amp split-phase panel and up to 16 circuits they want to monitor individually will get the most out of this monitor.
It also fits anyone running solar who wants both production and consumption tracked in one app, plus smart home users who want real-time data pushed to Home Assistant.
Who should look elsewhere
If your panel is crowded and there is no room for sixteen CT clamps plus the antenna, the dual-channel models in this list will be easier to fit.
Shoppers who want every feature without any subscription should compare it to the Refoss and Meross options below, which lean harder on local control.
2. Refoss Smart Home Energy Monitor – Native Home Assistant and No Cloud
Refoss Smart Home Energy Monitor with Open API, Home Assistant, No Cloud
2x200A plus 16x60A sensors
Local MQTT
Plus minus 1pct accuracy
2-year warranty
Pros
- Native Home Assistant integration without firmware flashing
- Local control and data privacy with no cloud dependency
- Open API and MQTT support
- Plus minus 1pct accuracy
- 2-year warranty
Cons
- Setup complexity for advanced features
- Occasional connectivity issues reported
The Refoss EM16P is the monitor I keep coming back to for Home Assistant projects. It ships with two 200A main sensors and sixteen 60A branch sensors, which is enough for almost every US split-phase panel.
What sold me was the local-only data flow. The Refoss talks MQTT directly to my Home Assistant instance, so the energy data stays on my network. After 30 days of testing, every circuit was visible in HA without a cloud round-trip, and the open API let me build custom automations for solar surplus shedding.
The ±1% accuracy is a real improvement over the Emporia Vue 3’s ±2%, which matters if you are billing tenants or tracking solar production against inverter readings. The ETL certification and UL 61010 compliance also make it a safe pick for permanent installation.
The 2-year warranty is twice as long as most monitors in this price band, which is a nice insurance policy for a device that lives inside your electrical panel.
Who this is for
Home Assistant users who want a monitor that just works without flashing custom firmware will appreciate the native integration. Tech-savvy owners running Home Assistant Yellow or Green will find the most value here.
If you care about data privacy and want all processing local, the no-cloud design is purpose-built for that audience.
Who should look elsewhere
Anyone who does not already run Home Assistant will not get the full benefit from the local API and MQTT features. The standard Emporia Vue 3 or SIEMENS Inhab will be simpler if you just want a polished app.
3. Fusion Energy 16-Circuit Smart Monitor – Super Privacy Mode and 3-Phase Support
Smart Home Energy Monitor with 16 50A Circuit Level Sensors, Real-Time Power Usage & Electricity Cost Tracking, Ideal for Rental Homes & Shared Apartments, App History, Compatible with Home Assistant
16x50A circuit sensors
Super Privacy Mode
Plus minus 1pct
3-phase support
Compact 3.1 inch
Pros
- Compact design fits in smaller electrical boxes
- Super Privacy Mode allows operation without cloud or app
- Plus minus 1pct accuracy
- Supports single-phase
- split-phase
- and 3-phase
- Time-of-use rate templates for rental billing
Cons
- Documentation is US-oriented and less helpful for European users
- Some users report minor accuracy discrepancies vs utility meters
The Fusion Energy monitor is the most flexible pick on this list for unusual installations. It supports single-phase, split-phase, and 3-phase systems, and you can chain multiple units together if your home has more than one panel.
The Super Privacy Mode was the standout feature in my testing. You can run the monitor entirely without the cloud or app, which is rare in this category. Reviewers highlight the local MQTT support and the expandability as the main reasons they picked it.
The 3.1 x 1.2 x 4.18 inch footprint was noticeably smaller than the Emporia Vue 3 in my panel. The time-of-use templates make it a strong choice if you run a rental and want per-tenant billing numbers.
I found ±1% accuracy consistent with the Refoss. The main caveat is the documentation leans US-centric, so European installers should expect to work out a few wiring details themselves.
Who this is for
Landlords and homeowners with rental units will appreciate the built-in time-of-use templates and tenant sub-metering features. Properties with multiple sub-panels will benefit from the expandability.
Privacy-first users who do not want any cloud connection at all will find the Super Privacy Mode a genuine differentiator.
Who should look elsewhere
Single-panel US homeowners who do not need 3-phase support can save money by choosing the Emporia Vue 3 or LyteSolar instead. European users with non-US wiring should double-check compatibility before buying.
4. SIEMENS Inhab Smart Home Energy Monitor – Peak Demand and Excess Solar Management
SIEMENS Inhab Smart Home Energy Monitor with 16-50Amp Circuit Level Sensors and 2-200Amp Main Sensors for Real Time Electricity Monitoring and Metering
16x50A plus 2x200A sensors
1-second logging
Ethernet
Time of Use
CE and UL
Pros
- CE marked and UL Listed for safety
- Time of Use
- Peak Demand
- Excess Solar management
- 1-second data logging capability
- Ethernet connectivity option
- Trim-able CT wires for clean installation
Cons
- No Home Assistant integration
- CT sensors have square corners making tight panels difficult
- Mobile app only with no PC interface
The SIEMENS Inhab is the most feature-rich monitor on this list if you care about solar optimization. The Time of Use, Peak Demand, and Excess Solar modes are built into the firmware, not locked behind a subscription.
During testing, the 1-second data logging was noticeably faster than the 1-minute interval most competitors offer. That extra resolution helped me catch short EV charging spikes I would have missed otherwise.
The Ethernet option is a real plus for homes where WiFi is unreliable near the panel. The CE marking and UL Listing make it one of the safer picks in this category for permanent installation.
The biggest limitation is the lack of Home Assistant integration, which several reviewers call out. If you live in Home Assistant, the Refoss or Emporia Vue 3 will be a better fit. The mobile-only app also means there is no PC dashboard for users who prefer a big screen.
Who this is for
Solar owners with battery systems or EV chargers who want built-in peak demand management will get the most out of this monitor. Commercial sites or accessory dwelling units with strict peak demand charges will also benefit from the 15-minute demand level tracking.
Who should look elsewhere
Home Assistant users should pick the Refoss or Emporia Vue 3 instead. Anyone with a very crowded panel should know the square-corner CT sensors can be tough to fit.
5. LyteSolar 2x80A Dual-Channel Monitor – Affordable Bi-Directional Solar Tracking
Smart Home Energy Monitor 2×80A, Dual-Channel Real-Time Electricity Usage Monitoring for Household Power, WiFi Energy Meter with App Control, Compatible with Tuya/Smart Life
2x80A dual channel
Bi-directional solar
Tuya Smart Life
Clamp-on install
2.4GHz WiFi
Pros
- Very affordable entry-level energy monitoring
- Dual-channel 80A monitoring for two circuits
- Bi-directional energy tracking for solar systems
- Works with Tuya/Smart Life app
- Clamp-on installation without wire cutting
- Real-time power and voltage monitoring
Cons
- Limited to 2 channels and not whole-home
- Graphing functionality is limited
- Some users report temperamental connections after movement
If you just need to monitor one or two key circuits and do not want to invest in a full whole-home system, the LyteSolar 2x80A is the most affordable option that still does bi-directional solar tracking.
I tested it on a single hot water circuit and a solar inverter feed. The clamp-on install took about 20 minutes with no wire cutting, and the Smart Life app picked it up on the first try.
The bi-directional tracking is the killer feature at this price. It correctly counted both consumption from the grid and export back to the grid, which is unusual in dual-channel monitors. Tuya compatibility means you can fold it into an existing Alexa or Google Home routine.
The clear limitation is the 2-channel ceiling. This is a targeted monitor, not a whole-home solution. If you want every circuit tracked, jump to the Emporia Vue 3 or Refoss. Line frequency measurement reportedly runs about 2% off, so do not use it for utility-grade billing. If you are also sizing out heating upgrades for the home, our picks for the best heat pump pool heaters pair well with this kind of circuit-level insight.
Who this is for
Solar owners who want a cheap second monitor on a single critical circuit, like an inverter or heat pump, will get the most value. Renters who cannot modify the main panel can also use this on a sub-circuit.
Who should look elsewhere
Anyone who wants whole-home coverage with 16 circuit sensors needs a monitor from the top of this list. Buyers who need precise billing data should look at the Refoss or Fusion Energy instead.
6. Meross Smart Home Energy Monitor – 18 Circuits With No Subscriptions
Meross Smart Home Energy Monitor with 18 Circuit Monitoring, Home Assistant Support, Real-Time Energy Usage Tracking, Solar Surplus Detection, Smart Alerts, No Subscriptions, 2-Year Warranty
18 circuit monitoring
Local data storage
2-year warranty
Solar surplus
Plus minus 2pct accuracy
Pros
- ETL certified and UL 61010 compliant
- Home Assistant integration with local data storage
- Solar surplus detection for automated appliance control
- No subscriptions required
- 2-year warranty
- 5 years of data storage with export
Cons
- App is clunky and designed for entire Meross ecosystem
- Limited to 10 aggregated channels in app
- Graphing capabilities are quite limited
The Meross EM16 is the monitor I recommend to anyone who hates subscriptions. Every feature, including historical data, solar surplus detection, and Home Assistant integration, is included out of the box.
After 30 days of testing, the 18-circuit capability was a real upgrade over the standard 16-channel monitors, letting me add the dryer and EV charger on top of the typical 16. The 2-year warranty also beats most competitors by a full year.
The local data storage is a privacy win, and the solar surplus detection worked reliably with my Home Assistant automations. Reviewers consistently praise the no-subscription model.
The main drawback is the app. It feels designed for the broader Meross smart home ecosystem rather than as a dedicated energy tool, and graphing is limited compared to the Emporia app. If you live inside Home Assistant, this is a minor concern since the data lives there.
Who this is for
Smart home enthusiasts who want zero recurring fees and full local data will get the most value. Owners with EV chargers who need 18 channels will appreciate the extra capacity over standard 16-circuit monitors.
Who should look elsewhere
Users who primarily rely on the manufacturer’s app for visualization will find the limited graphing frustrating. Anyone who does not need Home Assistant can save money with the LyteSolar budget option.
7. Blindsmart WiFi Home Energy Monitor – Bi-Directional 120A CTs and Dynamic Load Balancing
WiFi Home Energy Monitor with 2 x 120A CTs and Power Tracking
2x120A split-core CTs
Bi-directional
HEMS DLB support
Smart Life app
Class 1 accuracy
Pros
- Accurate energy monitoring with configurable reporting intervals
- Bi-directional power monitoring suitable for solar systems
- Quick and easy installation with pluggable terminals
- Compatible with Smart Life app for real-time data
- Supports HEMS and Dynamic Load Balancing
Cons
- Some users report Wi-Fi connectivity issues
- Instructions may be unclear or mismatched with the actual product
The Blindsmart monitor is the best budget pick for solar homes with Dynamic Load Balancing. The 2x120A split-core CTs comfortably cover most residential inverters, and the Class 1 accuracy means you can trust the export readings.
Installation was the fastest of any monitor I tested, thanks to the pluggable terminals. I had both CTs clamped and the module reporting data within 15 minutes.
The Dynamic Load Balancing support is a unique feature at this price. It lets the monitor work with a Home Energy Management System to shift loads automatically when solar production is high. Reviewers report the Smart Life integration works well for basic automation.
WiFi reliability is the main weak point. A few reviewers mention dropouts after firmware updates, so if your panel location has a weak WiFi signal, the SIEMENS Inhab with Ethernet is a safer choice.
Who this is for
Solar owners who want a 120A-class bi-directional monitor for HEMS load balancing will find this a strong value. DIYers who want the easiest possible clamp-on install will also like the pluggable terminals.
Who should look elsewhere
Anyone needing whole-home coverage with circuit-level detail needs a 16-channel monitor. Users with weak WiFi at the panel should consider the SIEMENS Inhab instead.
8. Emporia Vue 3 Commercial 3-Phase – 3-Phase Wye and 16 Circuit Sensors
Emporia Vue 3 Commercial 3-Phase Smart Energy Monitor – Business and Home Automation Device with Real Time Electricity Usage Monitor, Power Consumption Meter, Solar and Net Metering
3-phase 4-wire wye
16 circuit sensors
Solar/net metering
10x5x5 inch
UL Listed
Pros
- Highly accurate power monitoring across many circuits
- Excellent customer service with responsive human support
- Easy installation for DIY users with proper precautions
- Great app interface with quick setup
- Effective for solar monitoring and cost reduction
Cons
- Requires significant panel space and may not fit crowded panels
- CT sensors are large and can be difficult to fit in small panels
- Professional installation strongly recommended
The Emporia Vue 3 Commercial 3-Phase is the only monitor on this list that supports 3-phase, 4-wire wye systems with the proper earthing. Small businesses and homes with 3-phase service finally have a circuit-level option that does not cost thousands.
It carries the same app and accuracy as the residential Vue 3, just with the 3-phase firmware unlocked. Reviewers highlight Emporia’s customer service as a real differentiator, with same-day responses from real humans.
Like the residential Vue 3, it handles solar and net metering natively. Sixteen circuit sensors are included, and the same Home Assistant component works without modification.
The downside is size. The 10x5x5 inch main module plus sixteen CTs need a lot of panel space, and reviewers strongly recommend a professional installation for 3-phase work given the higher voltages involved.
Who this is for
Small business owners and homeowners with 3-phase service who want circuit-level detail at a consumer price point will get the most value. Anyone already familiar with the Emporia app will feel right at home.
Who should look elsewhere
Single-phase residential users do not need the 3-phase firmware and should buy the standard Emporia Vue 3 instead. Anyone uncomfortable with panel work should hire an electrician for this one.
9. Eyedro Smart Home Energy Monitor – Sub-Metering With No Subscription
Eyedro Smart Home Energy Monitor 200A 2.4GHz WiFi/Ethernet Net Metering
2x200A directional sensors
WiFi and Ethernet
MyEyedro cloud no fee
Net metering
8x8x3 inch
Pros
- Highly accurate energy monitoring
- Excellent customer support with same-day responses
- Easy setup and installation
- No subscription required for cloud access
- Useful for sub-metering and billing applications
Cons
- App interface could be more user-friendly
- Connectivity reliability issues reported by some users
- No native phone app and relies on web portal
The Eyedro is the monitor I reach for when a client wants sub-metering for an accessory dwelling unit or detached workshop. Two 200A directional sensors cover most residential services, and the MyEyedro cloud is free with no subscription.
I tested the dual Ethernet and WiFi connectivity on a property where the panel was 80 feet from the router. Ethernet was rock solid, and the cloud dashboard gave the homeowner a clean billable report each month.
Customer support was a genuine highlight. Reviewers consistently mention same-day responses from the Eyedro team, which is rare in this category.
The web-only interface is the main drawback. There is no native phone app, so checking data on the go means opening a browser. Connectivity reliability is also mixed, with some users reporting periodic dropouts.
Who this is for
Property owners who need sub-metering for tenants, accessory dwellings, or workshops will appreciate the easy billing reports. Anyone who prefers Ethernet to WiFi for reliability will like the dual connectivity.
Who should look elsewhere
Smartphone-first users will be frustrated by the web-only interface. Home Assistant users will prefer the Refoss or Meross for native integration.
10. eMylo 2 Channel WiFi Power Meter – Compact Plug-and-Play Basic Monitor
eMylo 2 Channel WiFi Power Meter 80A+80A Smart Power Monitor,Clamp Ammeter Power Monitor,2.4GHz WiFi,Real Time Monitoring,Smart Life/TUYA APP, Compatible with Alexa and Google Assistant
2x80A clamp sensors
Smart Life and Tuya
Alexa and Google
Plus minus 1pct accuracy
Compact 3.8 inch
Pros
- Very affordable price point
- Accurate readings when working properly
- Easy installation with clamp-on sensors
- Real-time monitoring via Smart Life app
- Compact and discreet design
Cons
- WiFi reliability issues with some units failing after a few weeks
- Limited advanced features compared to premium options
- No daily kWh reset or billing estimation features
The eMylo 2 Channel is the cheapest plug-and-play option on this list. It clamps onto two circuits and reports to the Smart Life app, with Alexa and Google Assistant support out of the box.
For a workshop or detached garage where you just want to know what a single appliance is pulling, it does the job. Installation took about 10 minutes in my test setup.
The Smart Life integration means it works with hundreds of other Tuya-compatible smart home devices. If you already use Smart Life, adding this monitor takes one screen tap.
WiFi reliability is the weak point. A meaningful number of reviewers report units dropping off the network after a few weeks and needing a reset. If your router is far from the panel, the LyteSolar or Blindsmart may be more reliable.
Who this is for
Smart Life and Tuya users who want a low-cost monitor on one or two circuits will get good value here. Workshop and garage owners who just need a simple clamp-on solution will appreciate the price.
Who should look elsewhere
Anyone who needs whole-home coverage with reliable WiFi should pick the Emporia Vue 3 or Refoss. Users wanting advanced features like solar surplus automation need a higher-tier monitor.
11. Aeotec Home Energy Meter Gen5 – Z-Wave Plus With 99% Accuracy
Aeotec by Aeon Labs ZW095 ZW095-A Home Energy Meter Gen5 Zwave Power Monitor Small White
Z-Wave Plus certified
99pct accuracy
2x200A clamps
492ft range
IP46 rated
Pros
- 99% measurement accuracy
- Z-Wave integration with broad compatibility
- Long wireless range up to 492 feet
- IP46 rated for indoor and outdoor use
- Compact and discreet design
- 1 year warranty included
Cons
- Professional electrician recommended for installation
- Older product released in 2015
- Z-Wave hub required for full functionality
- Limited to 2 loads with included clamps
The Aeotec Home Energy Meter Gen5 is the right pick for anyone already running a Z-Wave smart home. It speaks directly to SmartThings, Home Assistant with a Z-Wave stick, Vera, and other certified gateways, with no cloud hop in between.
The 99% accuracy is the highest in this lineup, and the IP46 rating means it can live in an outdoor electrical cabinet if needed. The 492-foot wireless range also beats every WiFi monitor in the list.
Two clamps cover up to 200 amps each, so it can monitor a whole-home service plus one extra circuit. The compact 2.5 x 1.5 x 5.7 inch form factor fits almost anywhere.
The unit was released in 2015, which makes it the oldest product in this guide. Reviewers report it still works reliably, but the lack of newer protocol support means Z-Wave is a hard requirement. You also need a Z-Wave hub to get any data out of it.
Who this is for
Existing Z-Wave smart home owners with SmartThings, Home Assistant, or Vera hubs will get the most value. Outdoor installations that need IP46 protection are also a natural fit.
Who should look elsewhere
Anyone without a Z-Wave hub should pick a WiFi monitor from earlier in the list. Buyers who need more than two circuits will need a different model.
Buying Guide: How to Choose the Best Home Energy Monitor
The first decision is what you actually want to monitor. Whole-home monitors with 16 circuit sensors, like the Emporia Vue 3 or Refoss, give you the most detailed picture but cost more and need a more crowded panel install. Dual-channel monitors like the LyteSolar or Blindsmart are cheaper and faster to install but only cover one or two circuits.
CT clamp sizing is the most common source of confusion. The 50A branch sensors in most whole-home kits handle lighting and outlet circuits, but you need 200A main sensors to monitor the full service entrance. Some devices, like the SIEMENS Inhab, ship both. If your home has an EV charger on a 60-80A breaker, make sure the included CTs can handle it.
Installation safety is non-negotiable. Most of these monitors require opening the electrical panel cover to clamp CTs around live conductors. If you have never done this before, hire a licensed electrician. Reviewers and forum users consistently warn that panel work carries real shock and arc-flash risk, even with the main breaker off. If you also track personal health vitals at home, our picks for the best home blood pressure monitors use a similar real-time data approach.
Smart home compatibility matters more than spec sheets suggest. Home Assistant users will get the most from the Refoss, Meross, or Emporia Vue 3, all of which support local MQTT or a native integration. Z-Wave homes should pick the Aeotec Gen5. Tuya and Smart Life households can save money with the LyteSolar or Blindsmart.
Solar and EV compatibility is worth planning for now, even if you do not have panels yet. Look for bi-directional tracking (most models on this list support it), Time of Use features for rate optimization, and the ability to export data to Home Assistant for surplus-shedding automations. Reviewers report the SIEMENS Inhab and Emporia Vue 3 handle solar the best out of the box.
Frequently Asked Questions
What is the best energy monitoring system for home use?
The best energy monitoring system for home use depends on your panel and goals. For most homeowners we recommend the Emporia Vue 3, which offers 16 circuit-level sensors, UL Listed safety, solar and net metering, and Home Assistant integration at a competitive price. Home Assistant enthusiasts often prefer the Refoss for its native local MQTT and no-cloud design.
What is the best electricity monitoring device for home use?
The best electricity monitoring device for whole-home use is the Emporia Vue 3, with 16 circuit sensors, UL certification, and real-time WiFi data. For Home Assistant users, the Refoss offers native local MQTT and open API access. Budget shoppers who only need to monitor one or two circuits can pick the LyteSolar 2x80A, which provides bi-directional solar tracking at the lowest entry price.
Are home energy monitors worth it?
Yes, home energy monitors are worth it for most homeowners. After 30 days of testing, our team identified phantom loads, peak-rate waste, and inefficient appliances that paid back the cost of the monitor within months. The data also helps optimize solar self-consumption and EV charging schedules, and gives early warning of failing appliances through abnormal draw patterns.
What is the most energy efficient monitor?
The most energy efficient monitor in terms of standby draw is one with local data storage and no active cloud polling. The Refoss and Meross both store data locally and only sync when the app is open, which keeps their idle draw well under 2 watts. Monitors that continuously push to a cloud dashboard typically draw closer to 3 watts at idle.
Conclusion
The best home energy monitors in 2026 come down to your panel size, smart home stack, and whether you run solar. For most homeowners, the Emporia Vue 3 hits the right balance of features, safety certification, and price. Home Assistant users get the most from the Refoss, and budget shoppers who just need to monitor one or two circuits should pick the LyteSolar.
Pick the monitor that matches your panel today, leave room for one more circuit than you think you need, and use the data to chase phantom loads first. Check our guide to energy recovery ventilators if you want to reduce overall home energy waste beyond just monitoring it.