By Abigail BrooksUpdated November 2026
Net metering export energy is the electricity your rooftop solar system sends back to the grid, and most utilities credit that energy against what you pull from the grid later. If you want to see how much you are exporting, when you export it, and whether your credits add up, you need a monitor that can measure power flowing in both directions. This guide compares six monitors that are sold for solar and net metering use. We selected them on four criteria: whether they measure bidirectional flow, the clamp and circuit capacity they offer, the quality of the app or local data access, and the patterns owners tend to report about setup and reliability.
Our top picks at a glance
- 1
TOP CHOICEBest overallEmporia Vue 3 Home Energy MonitorView on Amazon - 2
TOP CHOICEBest for dual-circuit homesWiFi Energy Monitor with 2 * 120A ClampsView on Amazon - 3
TOP CHOICEBest for single-phase serviceSmart Home Energy Monitor with 1 * 80A CT Current TransformerView on Amazon - 4
Best for detailed circuit tracking16 60A Circuit Sensor Refoss Smart Home Energy MonitorView on Amazon - 5
Best for learning the theoryNet Energy Analysis: The State of the ArtView on Amazon - 6
Best budget referenceElectricity Metering in Easy StepsView on Amazon
Our Top Picks
Quick Comparison
| Product | Best for | Key feature |
|---|---|---|
| Emporia Vue 3 Home Energy Monitor | Most homeowners with solar | Solar and net metering tracking with a clamp-based setup |
| WiFi Energy Monitor with 2 * 120A Clamps | Homes wanting two monitored feeds | Two 120A clamps for solar and main-panel readings |
| Smart Home Energy Monitor with 1 * 80A CT | Single-phase homes on a tight budget | Single 80A current transformer with WiFi control |
| 16 60A Circuit Sensor Refoss Energy Monitor | Owners who want circuit-level detail | Multi-circuit sensing with open API and local data |
| Net Energy Analysis: The State of the Art | Readers who want the economics behind net metering | Academic framework for evaluating net energy |
| Electricity Metering in Easy Steps | Beginners learning how meters work | Plain-language overview of smart meters |
Emporia Vue 3 Home Energy Monitor
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
Best for: Most homeowners with a grid-tied solar system who want a straightforward way to see exports
This is the monitor most people in the solar community tend to start with. It is built around circuit clamps that read both consumption and solar production, and its listing explicitly names solar and net metering as a use case. It suits homeowners who want to match exports against utility bills without a complicated install.
Key specs
- Designed for solar and net metering monitoring, as stated in the listing
- Clamp-based current sensing on household circuits
- Real-time electricity usage display and app access
- Listed as UL certified for safe energy monitoring
Pros
- Clearly marketed for solar and net metering use
- Clamp installation avoids rewiring the panel
- Widely discussed in owner communities for ease of setup
Cons
- Clamp placement requires careful attention to current direction
- Accuracy of exports depends on correct solar circuit wiring
Bottom line: A strong first choice for homeowners who want to see exports clearly without a complex project.
WiFi Energy Monitor with 2 * 120A Clamps
WiFi Energy Monitor with 2 * 120A Clamps, Real-Time Electricity Tracking, Smart Home Power Management,WiFi Meter Solar/Net Metering, Home Energy Automation and Control
Best for: Homes that need two monitored feeds, such as solar output and a main service line
The two-clamp design lets you measure the solar inverter feed and the main service separately, which makes the export calculation more direct. It fits homes where the solar system and the house load are on different sub-panels.
Key specs
- Two 120A clamps as named in the listing
- WiFi connectivity for remote monitoring
- Solar and net metering support stated in the listing
Pros
- Two channels allow separate solar and grid readings
- Useful for larger panels and split-panel installs
- Remote WiFi monitoring is convenient
Cons
- Two clamps require more careful placement than a single-clamp unit
- Overkill for small systems with one feed
Bottom line: Best for homeowners whose solar and house loads are wired separately and who want both measured.
Smart Home Energy Monitor with 1 * 80A CT Current Transformer
Smart Home Energy Monitor with 1 * 80A CT Current Transformer EdgeAnt, Single Phase Clamp Electricity Meter, Real-Time Electricity Energy Monitor, WiFi Home Energy Control, Solar Net Metering
Best for: Single-phase homes that want one measured feed on a limited budget
A single 80A current transformer covers the most common residential service. If your solar inverter feeds the main panel directly, one clamp at the service entrance can give you a usable net reading.
Key specs
- One 80A CT clamp as named in the listing
- Single-phase clamp electricity meter design
- WiFi home energy control and solar net metering support as stated
Pros
- Simpler and typically lower in cost than multi-clamp kits
- Single clamp is easy to reason about for net readings
- Suitable for standard single-phase service
Cons
- Limited to one measured feed, so no separate solar channel
- An 80A rating may not suit larger service sizes
Bottom line: A sensible pick for single-phase homes where the solar system ties in at a single point.
16 60A Circuit Sensor Refoss Smart Home Energy Monitor
16 60A Circuit Sensor, Real Time Electricity Usage Monitor, Power Consumption Meter, Solar Metering, ETL Certified, EM16P Refoss Smart Home Energy Monitor with Open API, Home Assistant, No Cloud
Best for: Owners who want circuit-level detail and local data access
Sixteen circuit sensors let you see where energy is used and produced across the house, not just at the service entrance. The listing mentions open API and Home Assistant compatibility, which appeals to people building local automation.
Key specs
- Sixteen 60A circuit sensors as named in the listing
- Solar metering support stated in the listing
- Open API and Home Assistant compatibility, no cloud requirement as stated
- ETL certification as stated
Pros
- Circuit-level data helps identify high-use appliances
- Local, cloud-free operation suits privacy-minded users
- Open integration for smart home projects
Cons
- Sixteen sensors means more installation time
- Advanced features are best suited to users comfortable with configuration
Bottom line: The right choice for detail-oriented owners who want circuit data and local control.
Net Energy Analysis: The State of the Art
Net Energy Analysis: The State of the Art (Routledge Explorations in Energy Studies)
Best for: Readers who want to understand the economics and theory behind net energy
This is a reference book rather than a device. It is aimed at readers who want a deeper understanding of how net energy is measured and evaluated, which can help when reading utility tariffs or comparing export credit structures.
Key specs
- Part of the Routledge Explorations in Energy Studies series, as named in the listing
- Focused on net energy analysis as a subject
Pros
- Provides conceptual grounding for net energy questions
- Useful for policy-minded homeowners
- Covers the framework behind energy accounting
Cons
- Academic in tone and not a practical setup guide
- Does not help with installing or wiring a monitor
Bottom line: A good companion for readers who want the theory, not a hardware purchase.
Electricity Metering in Easy Steps
Electricity Metering in Easy Steps: An outline book on smart energy meters for everyone
Best for: Beginners learning how electricity meters and smart meters work
If you are new to metering and want a plain-language primer before buying hardware, this outline book covers the basics of smart energy meters. It is a low-commitment way to learn the terminology that monitors and utility bills use.
Key specs
- Outline book on smart energy meters, as named in the listing
- Written for general readers
Pros
- Accessible language for beginners
- Explains basic metering concepts
- Short and quick to read
Cons
- Not specific to solar or net metering
- Less depth than the academic option
Bottom line: Ideal as a starting point for readers who are brand new to how meters measure energy.
Buying Guide
Bidirectional measurement
A monitor for net metering export energy must read power flowing both into and out of your home. Check the listing for explicit solar or net metering support, and confirm the sensor reads direction, not just magnitude. Export is only meaningful if the device can distinguish it from consumption.
Good picks for this: Emporia Vue 3 Home Energy Monitor, WiFi Energy Monitor with 2 * 120A Clamps
Clamp rating and service size
Match the clamp rating to your service and circuit size. An 80A clamp suits many single-phase setups, while larger services may need higher-rated clamps. Undersized clamps can saturate and misreport readings, so check your main breaker size before buying.
Good picks for this: Smart Home Energy Monitor with 1 * 80A CT Current Transformer, WiFi Energy Monitor with 2 * 120A Clamps
Number of circuits to monitor
Decide whether you need a single feed reading or circuit-level detail. Single-feed monitors are simpler, while multi-circuit systems show which appliances drive your usage. More channels mean more installation time.
Good picks for this: 16 60A Circuit Sensor Refoss Smart Home Energy Monitor, Emporia Vue 3 Home Energy Monitor
Data access and integration
Some owners want cloud apps, while others prefer local access or integration with home automation platforms. Read the listing carefully for open API, Home Assistant, or no-cloud claims, and consider how long you want your historical data stored.
Good picks for this: 16 60A Circuit Sensor Refoss Smart Home Energy Monitor, WiFi Energy Monitor with 2 * 120A Clamps
Installation and electrical safety
Clamp-based monitors are generally installed on the outside of conductors, but you still need to work safely inside a panel. If you are not comfortable working near live electrical equipment, hire a licensed electrician. Confirm that the device carries a recognized safety certification such as UL or ETL where the listing states it.
Good picks for this: Emporia Vue 3 Home Energy Monitor, Smart Home Energy Monitor with 1 * 80A CT Current Transformer
Your utility’s net metering rules
Monitors show what happens physically, but your utility decides how exports are credited. Before buying, check whether your program uses net metering, net billing, or another export structure, since this changes what you should track. Your utility’s interconnection documents are the authoritative reference.
Good picks for this: Net Energy Analysis: The State of the Art, Electricity Metering in Easy Steps
Longevity and ongoing care
Check for firmware updates and manufacturer support, and keep clamps clean and secured so they do not shift. Owners often report that loose clamps are a common cause of inaccurate readings, so recheck placement after any panel work.
Good picks for this: Emporia Vue 3 Home Energy Monitor, 16 60A Circuit Sensor Refoss Smart Home Energy Monitor
FAQ
What does net metering export energy mean?
It is the electricity your solar system sends to the grid. Under net metering, utilities typically credit those exports against the power you draw later, though the exact credit rules vary by utility.
Do I need a monitor to participate in net metering?
Usually no. Your utility meter records net flow for billing. A monitor is an optional tool that helps you understand and verify your exports in real time.
How many clamps do I need?
A single clamp on the service entrance works for many homes. Two clamps help if your solar feed and house load are separated, and circuit-level systems suit owners who want appliance detail.
Can a monitor replace my utility meter?
No. Monitors are for information and tracking. Billing is based on your utility’s official meter, so use the monitor to check your figures, not to set your bill.
Are these monitors safe to install myself?
Clamp installation involves working around live wiring. If you are unsure, consult a licensed electrician. Safety certifications listed on the product pages are a useful sign of quality, but they do not replace professional judgment.
Why might my export readings look wrong?
Common causes include clamps installed in the wrong direction, clamps placed on the wrong conductor, or a monitor sized for a smaller current than your system carries. Verify placement and direction against the manufacturer’s diagram.
Conclusion
For most homeowners with grid-tied solar, the Emporia Vue 3 is the most direct starting point because its listing explicitly targets solar and net metering. Households with separate solar and house feeds should look at the two-clamp WiFi model. Single-phase homes on a budget can consider the 80A CT unit, while owners who want circuit detail and local control should look at the Refoss sixteen-sensor system. The two books are useful if you want to understand net energy or metering before buying hardware.
Sources
- Federal guidance on net metering, interconnection and how residential solar credits are generally structured (energy.gov)
- Research on distributed solar, net metering policy and residential energy data (nrel.gov)
- Safety certification standards that apply to residential energy monitoring equipment (ul.com)
Related reading
- Virtual Net Energy Metering vs Physical Net Metering: Which Is Better?
- Puget Sound Energy Net Metering: How to Apply and Get Credited
- PPL Net Metering Program vs Standard Grid Export: Which Should You Choose?
- Net Metering Duke Energy (2026): Which Should You Choose?
- Net Energy Metering True-up: How It Works and What Homeowners Should Check
About Abigail Brooks
Abigail writes about home solar. Each guide starts with research into how products are built and what owners report after months of use, and is revised when better options appear.
