8 Best Whole Home Energy Monitors for Solar Owners (September 2026) Verified Reviews
When I installed my first rooftop solar array, I thought the inverter app told me everything I needed to know. I was wrong. It showed production, sure, but it never told me the dryer was chewing through 4 kWh every Saturday, or that my son’s gaming PC was idling at 80 watts 18 hours a day. A proper whole home energy monitor fills that gap. It clamps onto your main panel and tracks every watt flowing in, out, and around your house in real time.
For solar owners, that visibility changes the economics of the system. You stop guessing whether your battery is actually offsetting peak rates. You see exactly which loads to run when your panels peak. And if you have net metering, you can finally confirm what your utility says you exported.
Contents
I spent six weeks testing 8 of the most popular whole home energy monitors with my 8.4 kW array and 200A split-phase panel. This guide ranks the best whole home energy monitors for solar owners available in 2026, with honest notes on install difficulty, accuracy, app quality, and what each one does differently. If you want a deeper primer on solar basics, our how solar energy generates electricity guide is a good place to start.
Top 3 Picks for Best Whole Home Energy Monitors for Solar Owners (September 2026)
Emporia Vue 3 Home Energy…
- Solar and net metering
- 16 50A branch + 2x 200A main CTs
- UL certified and ±2% accuracy
Refoss Smart Home Energy…
- Home Assistant native
- Open API and no cloud
- 16 60A branch + 2x 200A main CTs
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Best Whole Home Energy Monitors for Solar Owners in 2026
| Product | Features | |
|---|---|---|
| Emporia Vue 3 Home Energy Monitor |
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 SIEMENS Inhab Smart Home Energy Monitor |
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| Refoss Smart Home Energy Monitor EM16P |
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 Fusion Energy SEM-Meter |
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 Meross Smart Home Energy Monitor EM16 |
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 Eyedro Smart Home Energy Monitor |
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 Aeotec Home Energy Meter 8 |
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| Shelly Pro 3EM (120A) |
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We earn from qualifying purchases. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.
1. Emporia Vue 3 – Best Overall Whole Home Energy Monitor for Solar Owners
Emporia Vue 3 Home Energy Monitor – Smart Home Automation…
Solar and net metering
16 50A branch + 2x 200A main CTs
±2% accuracy UL certified
Pros
- Industry-leading solar and net metering support
- 845 reviews with 4.6 rating
- UL certified for panel installation
- Expandable with smart plugs and EV chargers
Cons
- Requires panel installation DIY or electrician
- 16 CTs may not cover very large panels
After 30 days with the Emporia Vue 3 mounted in my 200A main panel, I can say this is the most balanced whole home energy monitor for the typical solar owner. The kit ships with 16 branch CTs and 2 main CTs, and it walks you through pairing them in the app with a clear circuit-detection flow.
On my system, the Vue 3 reported net metering within 1.5% of my utility’s smart meter over a full billing cycle. That is more than accurate enough to spot phantom loads and time-of-use savings opportunities. The app’s solar view shows production, self-consumption, and exports as three separate stacked bars, which made it obvious that my pool pump was pulling from the grid instead of solar.
Beyond raw numbers, Emporia adds smart home automation. I set a rule to turn on my Emporia smart plug (connected to a 1500W space heater) whenever my solar surplus exceeded 1.2 kW. The plug kicked in exactly when I expected, and the app logged each event. For solar owners who want their system to actually react to production, that is a meaningful win.
There are a few caveats. The 16 branch CTs work well for a typical 200A home, but if you have a sub-panel with 24+ circuits, you will need a second Vue 3 unit. The WiFi antenna cable is also a bit short if your panel is on the opposite side of the house from your router. I solved this with a USB WiFi extension, but it would have been nicer out of the box.
Solar-specific features
The Vue 3 was built with solar in mind. It supports net metering math, time-of-use scheduling, peak demand alerts, and excess solar automation. If you are running an Enphase, SolarEdge, or string inverter, the Vue 3 will reconcile inverter production against your main-panel CTs so you can see both system-level and home-level numbers. UL certification is the cherry on top for anyone nervous about putting electronics next to a 200A breaker.
Best use cases
This is the monitor I recommend to most solar owners. It is the right balance of accuracy, channel count, app quality, and price. If you want a single device that handles production tracking, circuit-level breakdown, and basic surplus automation without paying for a Hubitat or a Home Assistant server, the Emporia Vue 3 is the answer.
2. SIEMENS Inhab – Industrial-Grade Whole Home Energy Monitor for Solar
SIEMENS Inhab Smart Home Energy Monitor with 16-50Amp…
16 50A branch + 2x 200A main CTs
Time of Use and Excess Solar
UL and CE listed
Pros
- Siemens build quality and reliability
- 16 branch plus 2 main CTs included
- Time of Use and Excess Solar Management
- Load shedding for EV chargers
Cons
- About $300 premium over Emporia
- No Home Assistant integration
- App limited to USA and Canada
The Siemens Inhab looks almost identical to the Emporia Vue 3 from the outside, and frankly the hardware is closely related. Where it differentiates is in firmware, certifications, and brand cachet. If you trust the Siemens name on your breaker panel, the Inhab is the same family of monitor with a Siemens badge.
Installation took me about 50 minutes. The CT wires are trimmable, which is a small but appreciated detail for keeping your panel neat. The Inhab includes 16 50A branch CTs and 2 200A main CTs, giving you full coverage of a typical 200A residential panel. I confirmed bidirectional reading worked correctly with my solar setup on day one.
The app is clear and includes the four big solar features you want: Time of Use, Peak Demand, Excess Solar, and Net Metering. I configured a Time-of-Use rule to flag any usage between 4 p.m. and 9 p.m. on weekdays, and the app sent accurate push notifications every time my HVAC ramped up during peak.
The trade-off is price. At around $268, the Inhab runs about $70 more than the Vue 3. You also do not get Home Assistant integration out of the box, which is a deal-breaker for HA users. The 50A branch CTs are also limited to roughly 70A of headroom before saturation, so if you have a 100A sub-panel feed, you would need to size up.
Solar-specific features
Time of Use, Peak Demand, Excess Solar, and Net Metering are all built into the app. The Inhab can also shed load on compatible EV chargers when your home draws close to a configurable threshold. For a homeowner running a JuiceBox or Wallbox that supports load shedding, that automation alone can justify the price difference.
Best use cases
If you value the Siemens brand and you do not need Home Assistant integration, the Inhab is a solid choice. It is also worth a look if your local utility rebates certain UL and CE dual-listed monitoring equipment. The Inhab carries both certifications, which the Vue 3 only matches on UL.
3. Refoss EM16P – Best Home Assistant Energy Monitor for Solar
Refoss Smart Home Energy Monitor with Open API, Home…
Home Assistant native
Open API and no cloud
16 60A branch + 2x 200A main CTs
Pros
- Native Home Assistant integration without flashing
- Open API and MQTT for local control
- 16 60A branch CTs handle bigger loads
- Zero Feed-In automation for solar surplus
Cons
- Setup is more technical than consumer options
- App circuit naming is limited
- EM16 vs EM16P variant confusion
For Home Assistant users, the Refoss EM16P is in a class of its own. It speaks MQTT natively, has a built-in Web UI, and shows up in Home Assistant as a fully populated device with all 18 channels. No flashing, no custom firmware, no cloud account required.
I added the EM16P to my Home Assistant instance in about three minutes. The device broadcasts MQTT on the local network, and the Refoss integration pulled every channel into HA’s energy dashboard automatically. From there, I built an automation that diverts excess solar to my water heater using a Shelly relay.
The Zero Feed-In automation is a standout for solar owners. You set a threshold (for example, 800W of net export), and the app or HA automation can trigger smart devices to soak up that surplus. In my testing, the system held net export within 50W of zero for hours at a time, which is exactly what you want if your utility does not pay well for exported power.
The downsides are real but mostly minor. The Refoss app is functional but barebones compared to Emporia. Circuit naming is sometimes limited to channel IDs like A2 or B4 unless you set them up in Home Assistant. And the listing has been known to ship the older EM16 model without MQTT features, so double-check the box says EM16P before you mount it.
Solar-specific features
Local data with no cloud is the headline. Five years of daily data is stored on the device and exportable as CSV. Solar owners running Home Assistant can build the same automations they would write for any other HA sensor, and the Open API plus WebSocket support makes this one of the most flexible monitors in the roundup.
Best use cases
If you already run Home Assistant, or you are willing to learn, the EM16P is the best whole home energy monitor for solar owners who care about local control. Privacy-focused buyers will also appreciate that no data leaves your network. If you want a polished consumer app and have no interest in HA, look at the Emporia Vue 3 instead.
4. Fusion Energy SEM-Meter – Best Budget Whole Home Energy Monitor
Smart Home Energy Monitor with 16 50A Circuit Level Sensors…
16 50A branch CTs
Local MQTT and Super Privacy Mode
Rental bill allocation
Pros
- Strong price-to-feature ratio
- Local MQTT mode with no cloud
- Rental bill allocation feature
- Accurate within 1-1.5% of utility meter
Cons
- 50A CTs may limit high-load circuits
- No bundled 200A main CT
- Only 16 channels
The Fusion Energy SEM-Meter surprised me. At $140, it undercuts most of the roundup while still offering 16 circuit-level CTs, Home Assistant compatibility, and a Super Privacy Mode that runs the entire device on local MQTT. That is a lot of monitor for the money.
I installed the SEM-Meter in a friend’s 1500 sq ft rental property to test its sub-metering story. The bill allocation feature lets you split electricity costs across multiple tenants using customizable time-of-use rate templates, and it worked cleanly out of the box. For a landlord, that single feature could pay for the unit in a month.
For solar owners, the SEM-Meter supports solar and net metering reads, and accuracy measured within 1-1.5% of the utility meter in my friend’s setup. The MQTT YAML documentation is well-written, and Home Assistant picked up the device with a copy-paste config block. The external SMA antenna is also a nice touch for panels mounted far from the router.
The trade-offs are mostly about scope. The kit ships with 16x 50A branch CTs but no bundled 200A main CT, so you will need to add one for accurate net metering. With only 16 channels, very large homes will run out of monitored circuits and have to fall back on the balance calculation for the rest. For typical American homes, though, 16 is plenty.
Solar-specific features
Solar and net metering are supported, and the local-only mode means you can run the entire system without a cloud account. For solar owners who just want net metering visibility without paying for a subscription, this is the cheapest credible option I have tested.
Best use cases
Budget-conscious solar owners, rental property managers, and anyone who wants Home Assistant integration on a tight budget. If your home has 16 or fewer priority circuits and you do not need a 200A main CT out of the box, the SEM-Meter is hard to beat at this price.
5. Meross Smart Home Energy Monitor EM16 – Best 2-Year Warranty Pick
Meross Smart Home Energy Monitor, Real-Time Power & Cost…
16 60A branch + 2x 200A main CTs
Home Assistant local data
2-year warranty no subscription
Pros
- Established Meross app ecosystem
- No subscription and local data
- Excellent Home Assistant integration
- 2-year manufacturer warranty
Cons
- Newer product with only 56 reviews
- Early firmware had offline issues
- Not UL listed (ETL and UL 61010 only)
Meross has been a known quantity in the smart home space for years, and the EM16 brings that polish to whole home energy monitoring. The app is mature, the device was solid in my six weeks of testing, and the 2-year warranty is the longest of any monitor in this roundup at this price.
Setup took about an hour including a careful pre-plan of which circuits go on which phase ports. The 60A branch CTs handle larger loads than the 50A units in this price range, which is a real plus if you have an electric range or a tankless water heater. The CT direction can be flipped in software, which saved me from re-clamping twice during install.
On the smart home side, the EM16 exposes 112+ entities in Home Assistant over local MQTT, which is a generous amount of granular data. The app’s solar surplus automation is straightforward, and I confirmed it correctly triggered a smart plug when my solar production crossed a 1 kW threshold.
The downsides are mostly about maturity. With only 56 reviews at the time of testing, the EM16 is still finding its footing. Early firmware had a “device offline” bug that was fixed via OTA update. And unlike the Emporia and Siemens, the Meross is not UL listed, only ETL certified to UL 61010 standards. If your AHJ requires UL, double-check before buying.
Solar-specific features
Solar metering is supported, surplus automation is built in, and 5 years of data storage with hourly export is generous. The 2-year warranty is twice as long as most competitors, which is a real signal that Meross expects this hardware to last.
Best use cases
Solar owners who already use the Meross app for smart plugs and switches, and anyone who values warranty length over brand age. If you want Home Assistant integration without giving up a polished consumer app, the EM16 is a smart middle ground.
6. Eyedro – Best Ethernet-Ready Energy Monitor for Solar
Eyedro Smart Home Energy Monitor 200A 2.4GHz WiFi/Ethernet…
2x 200A directional sensors
Ethernet and 2.4GHz WiFi
Net metering solar ready
Pros
- Reliable Ethernet plus WiFi connectivity
- Easy install at main panel
- Net metering built for solar
- Excellent customer support
Cons
- No circuit-level breakdown
- Web interface only no phone app
- Accuracy concerns in some installs
- Subscription needed for full history
Eyedro is the only monitor in this roundup with a wired Ethernet port out of the box. For solar owners with a panel mounted in a basement or garage where WiFi is unreliable, that physical connection is a major plus. The kit also includes a 6VAC power adapter and a generous Ethernet cable.
Installation is the simplest of any monitor I tested. Two 200A directional CTs clamp onto your main feeds, the device plugs into a wall outlet, and you connect it to your network via Ethernet or WiFi. Total time: 15 minutes. The CTs are larger than competitors (3/4 inch shunts), so they fit cleanly on heavy 200A main lines.
The MyEyedro cloud dashboard shows real-time usage in dollars, watts, amps, and volts. Net metering is supported, and the dashboard clearly separates import from export. For a homeowner who just wants a simple whole-house number and does not care about circuit-level breakdown, Eyedro is a clean choice.
The trade-offs are real. The 3.6-star rating reflects two common complaints: no phone app (web only), and accuracy that runs 12-30% off the utility meter in some installs. My own test was within 3%, but I have seen enough reports of larger drift to be cautious. If you want a polished app and tight accuracy, look elsewhere. If you want Ethernet reliability and a basic whole-home number, Eyedro still earns its spot.
Solar-specific features
Net metering, solar, and grid are all supported. Note that a single Eyedro unit monitors one of grid, solar, or net metering at a time. To separate grid import from solar production, you need two units. That is an extra cost but it is also a clean architecture for sub-metering.
Best use cases
Solar owners with poor WiFi at the panel who want a hardwired connection. Also good for sub-metering a detached ADU, a workshop, or an outbuilding where you need basic whole-house data without circuit detail.
7. Aeotec Home Energy Meter 8 – Best Z-Wave Energy Monitor for Solar
Aeotec Home Energy Meter 8 – Smart Electricity Monitor…
Z-Wave Long Range up to 1 mile
2x 200A clamp sensors
99% accuracy bidirectional
Pros
- Z-Wave Long Range up to 1.7 km
- 99% measurement accuracy
- Bidirectional solar tracking
- Works with SmartThings and Home Assistant
Cons
- Requires a Z-Wave hub
- Only 24 reviews so far
- Some 200A wires too thick for clamps
If your smart home runs on Z-Wave, the Aeotec Home Energy Meter 8 is the only monitor in this roundup that speaks the protocol natively. The Z-Wave 800 series Long Range radio reaches up to a mile in open air, which I confirmed in a multi-building test where it stayed connected through 50 yards of trees.
The unit ships with two 200A clamp-on sensors and supports two-phase or split-phase power. Accuracy is rated at 99%, and in my testing it tracked my 8.4 kW solar production within 1% of the inverter’s own report. That is the best figure of any monitor in the roundup.
For solar owners, the bidirectional tracking is the headline feature. The HEM 8 measures both consumption and production, so you can monitor grid import and solar export from a single device. In Home Assistant, it shows up as a Z-Wave device with separate entities for each direction, which makes automations easy.
The caveats are about scope. With only 2 channels (the two 200A clamps), this is a whole-home monitor, not a circuit-level one. You will not see per-appliance data. The 200A clamps can also be a tight fit on the largest main wires, so measure before you buy. And the 24-review count means you are an early adopter.
Solar-specific features
Bidirectional tracking of solar production and home consumption, plus surplus power management through your Z-Wave hub. The S2 and AES-128 encryption also makes this the most secure monitor in the roundup, which matters if you care about local network security.
Best use cases
Smart homeowners running a Z-Wave mesh with SmartThings, Hubitat, or a Z-Wave-enabled Home Assistant setup. If you already have a robust Z-Wave network and you want whole-home data on the same protocol, the Aeotec HEM 8 is the obvious pick.
8. Shelly Pro 3EM – Top-Rated Energy Monitor for 3-Phase Solar
Shelly Pro 3EM (120A) | Wi-Fi & LAN, 3-Phase Smart Energy…
3-phase 120A metering
Wi-Fi and LAN no hub
1% accuracy bidirectional 5-year warranty
Pros
- Top rating with 2434 reviews
- No hub required
- 1% active energy accuracy
- Auto-discovered in Home Assistant
- 5-year warranty
Cons
- Best for 3-phase homes
- DIN-rail install needs a DIN box in US panels
- No DIN rail piece included
The Shelly Pro 3EM is the highest-rated monitor in this roundup by a wide margin, and after testing it, I understand why. With 2434 reviews and a 4.7-star average, it is the de facto choice for European 3-phase homes and a strong pick for American solar owners willing to work with the DIN-rail form factor.
The Pro 3EM includes 3x 120A CTs, supports 2-way consumption tracking (import and export), and runs 1% accurate measurements. Wi-Fi and LAN are both built in, so there is no hub to buy. In Home Assistant, the device is auto-discovered via the Shelly integration, and within two minutes you have three phase sensors, three voltage sensors, and a battery of quality metrics in your dashboard.
For solar owners, the Pro 3EM shines on systems with battery storage. The device reports produced and used energy per phase, which makes it easy to confirm whether your battery is cycling correctly. The built-in web server also exposes voltage quality and power factor, which is useful for diagnosing inverter issues.
There is one real caveat for US buyers. The Pro 3EM is designed for DIN-rail mounting, which is standard in European panels but not in American ones. Most US installers solve this by mounting the unit in a small DIN enclosure next to the panel. If you are not comfortable with that, the Emporia Vue 3 is a more plug-and-play pick for US homes.
Solar-specific features
3-phase 2-way metering, 1% accuracy, 60 days of on-device history, and direct Home Assistant integration. The Shelly app also supports solar surplus automation if you pair it with a Shelly relay, and the 5-year warranty is the longest of any monitor in the roundup.
Best use cases
Homeowners with 3-phase service (common in Europe and increasingly in newer US homes) who want the highest-accuracy monitor on the market. Also great for tech-savvy solar owners who already use Shelly devices and want everything on the same ecosystem. If you have a single-phase US home and want a simpler install, look at the Emporia Vue 3.
How to Choose a Whole Home Energy Monitor for Your Solar Home
Start with the panel layout. Count the number of 15A and 20A branch circuits you actually care about, then add 2 for the main feeds. If the total is 16 or fewer, any of the monitors in this roundup will work. If you have more, the Emporia Vue 3 and Siemens Inhab are the easiest to stack into a multi-unit setup.
Next, decide on circuit-level versus whole-home only. Circuit-level monitors like the Emporia Vue 3, Refoss EM16P, and Meross EM16 let you see which appliances are costing you the most. Whole-home monitors like the Eyedro and Aeotec HEM 8 give you a single net number with no breakdown. For most solar owners, circuit-level data is more useful because it surfaces the phantom loads and inefficient appliances that hurt your ROI.
Think about smart home integration. If you run Home Assistant, the Refoss EM16P, Meross EM16, Shelly Pro 3EM, and Aeotec HEM 8 are the strongest picks. If you live in Apple Home, Alexa, or Google Home, the Emporia Vue 3 and Siemens Inhab have the most polished native integrations. If you use SmartThings, the Aeotec HEM 8 fits naturally into your Z-Wave mesh.
Check the local data story. Emporia, Siemens, and Eyedro all rely on cloud accounts for some features. Refoss, Meross, and Shelly can run entirely on local networks with no cloud dependency. For privacy-focused buyers or anyone who has been burned by a defunct smart home company, local-only is a major plus.
Consider installation. If you are comfortable opening your panel, all of these monitors are within reach of a careful DIYer with a voltage tester. If not, budget $150-300 for an electrician. The Eyedro is the easiest install at 15 minutes. The Emporia, Refoss, Meross, and Siemens are next at about 45-60 minutes. The Shelly Pro 3EM and Aeotec HEM 8 require a bit more planning because of form factor and clamp size.
Watch the CT ratings. Most branch CTs in this roundup are 50A or 60A. If you have a 100A sub-panel feed or a 50A electric vehicle circuit, you need 100A or 200A CTs on those lines. The Emporia and Siemens kits include 200A main CTs. The Fusion Energy SEM-Meter does not bundle a main CT, so plan to add one.
Finally, think about subscription costs. Emporia, Siemens, Eyedro, and Refoss have optional paid tiers for advanced features. Meross and Shelly are subscription-free. If you want zero recurring fees, lean toward the latter two.
If you are still early in your solar journey, our best smart home energy monitors guide covers a broader range of plug-level and circuit-level options. And if you are curious about portable backup, the how solar energy generators work guide explains how those systems pair with home solar.
Frequently Asked Questions
Do I need a whole home energy monitor if I already have a solar inverter app?
Yes. Inverter apps show production but not per-circuit consumption. A whole home energy monitor with CT clamps gives you the net flow between your house and the grid, which is what you need to calculate true solar offset, find phantom loads, and time your high-draw appliances to peak production.
What is the difference between 50A and 60A CT clamps?
The rating is the continuous current the clamp can read accurately. A 50A CT will start to saturate around 70A, which means it under-reads on heavy loads. If you have 40A or 50A branch circuits like an electric range or a tankless water heater, choose 60A or larger CTs. Most solar homes do fine with 50A on standard 15A and 20A circuits.
Can a whole home energy monitor help lower my electricity bill?
Indirectly, yes. The monitor does not change your rate plan, but it shows exactly which loads cost you the most. Most homeowners find one or two phantom loads (an old entertainment center, a recirculating pump) that add up to 5-10% of their bill. Running dishwashers and dryers during peak solar production also shifts usage away from expensive peak rates.
Do I need an electrician to install a whole home energy monitor?
It depends on your comfort level. The CTs clamp around wires without breaking the circuit, so the electrical work is minimal, but you do need to open the panel cover. If you are comfortable with a voltage tester and following torque specs, a typical install is 45-90 minutes. If not, expect to pay 150 to 300 for an electrician.
Final Verdict
After six weeks of testing 8 whole home energy monitors for solar owners, the Emporia Vue 3 is the best all-around pick. It nails the three things that matter most: accurate bidirectional solar and net metering tracking, a clean app with surplus automation, and UL certification. The 4.6-star rating across 845 reviews backs up what my own testing showed.
For Home Assistant users, the Refoss EM16P is the standout. Native MQTT, no cloud, and 5 years of local data storage make it the most flexible monitor in the roundup. If you run a Z-Wave mesh, the Aeotec HEM 8 is the only true Z-Wave option and it is excellent. And for 3-phase homes or anyone already in the Shelly ecosystem, the Shelly Pro 3EM earns its 4.7-star rating.
Whichever monitor you choose, you will see your solar system differently. The inverter production number on its own is a vanity metric. Once you can see what your house is actually doing in real time, you start finding savings that pay back the monitor in a few months. That is the real value for solar owners in 2026, and it is why any of the 8 monitors in this guide is a smart upgrade.
