Net Meter, Netmeter, Green Meter, Bidirectional Meter: Are They the Same Thing?

Search for solar metering and you will hit half a dozen names for what is, in most cases, a single box on a wall. Green meter. Net meter. Netmeter. Bidirectional meter. Two-way meter. Smart export meter.

People use them interchangeably, installers use them inconsistently, and utilities have their own official vocabulary that matches none of the above. Here is what each one actually refers to.

The short answer

Green meter, net meter, netmeter, bidirectional meter and two-way meter almost always describe the same physical device: an electricity meter that records energy flowing in both directions - grid to home, and home to grid.

The differences are regional and informal, not technical:

Term	Where you hear it	What it refers to
Bidirectional meter	Everywhere; the technically correct term	The hardware - a meter that measures import and export separately
Net meter	Global, common usage	The same hardware, named after the billing scheme it enables
Netmeter	Common spelling variant	Identical to "net meter"; just written as one word
Green meter	Pakistan and India, informal	The same hardware. Named for its association with clean energy
Two-way meter	Plain-English usage	The same hardware
Smart export meter	UK	A smart meter with half-hourly export readings, used for SEG payments
Solar meter	Loose, informal	Ambiguous - can mean the bidirectional meter or a generation meter

If you are talking to a utility engineer, say bidirectional meter. If you are talking to a solar installer in Lahore or Karachi, green meter will be understood instantly.

Why "green meter"?

In Pakistan especially, "green meter" caught on as everyday shorthand for the bidirectional meter installed when you go on net metering. It is not an official NEPRA or DISCO term - you will not find it in the regulations - but it is what customers, YouTube explainers and many installers actually say. Search volume for phrases like green meter price in Pakistan is substantial.

The name is about association with solar and clean energy rather than a description of the hardware. Nothing about the device is green, and there is no separate "green meter" product category to shop for.

If you are pricing one up, see green meter price in Pakistan: what you actually pay.

The one distinction that is real: the meter vs the billing scheme

This is where genuine confusion lives, and it costs people money.

The meter is hardware. The scheme is a contract. They are not the same thing, and having the meter does not tell you how you are paid.

The identical bidirectional meter can be operating under:

• Net metering - your exports offset your imports 1:1 at the retail rate.
• Net billing - your exports are sold at a separate, usually much lower rate, while your imports are bought at retail.
• Gross metering - everything you generate is sold to the utility; everything you consume is bought back.

So "I have a net meter" does not mean "I am on net metering". Pakistan is the clearest example: after the February 2026 regulations, new prosumers get the same meter on a net billing contract, with export credited at a fraction of the old rate. Same hardware, very different bill.

Read net metering vs net billing vs gross metering for the full comparison, and if you are in Pakistan, what changed under the 2026 NEPRA rules.

What about a "generation meter"?

A generation meter is genuinely a different device. It sits between your inverter and your consumer unit and measures everything your panels produce, including what you use yourself. A bidirectional meter, by contrast, only sees what crosses the boundary between your property and the grid.

• Generation meter: total production
• Bidirectional meter: import and export

You need a generation meter for schemes that pay on total generation, such as gross metering or Sri Lanka's Net Plus. You do not usually need one for ordinary net metering, where only the flows across your connection point matter.

Terms you will meet in the paperwork

The words on your application form are usually different again:

• Prosumer - a consumer who also produces. The formal term in many regulations, including Pakistan's 2026 rules.
• Distributed generation (DG) - the regulator's umbrella term for small on-site generation.
• SSEG (Small Scale Embedded Generator) - South Africa's category for rooftop solar.
• Microgeneration - what net metering is called in Alberta and Yukon, Canada.
• Import / export registers - the individual counters inside the meter. On the meters common in Pakistan these are numbered, with #5 off-peak export, #6 peak import and #8 off-peak import.

We walk through reading those registers in how to read your net meter.

Does the meter itself affect what you earn?

Not directly - but a few hardware details matter:

1. Single meter vs two meters. Some utilities install one bidirectional meter, others install separate import and export meters. Regulations generally require that the two arrangements produce the same settlement result, so this should not change your money.
2. Time-of-use registers. If your tariff has peak and off-peak windows, the meter must record them separately. This matters enormously: a unit imported at peak can cost substantially more than one imported off-peak.
3. Half-hourly capability. In markets like the UK, export payments require a smart meter that reports half-hourly. Without it you cannot claim.

Quick answers

Is a green meter the same as a net meter? Yes. "Green meter" is informal regional usage - common in Pakistan - for the bidirectional meter used in net metering. Same device.

Is "netmeter" a spelling mistake? Not really. "Net meter" is the conventional two-word form, but "netmeter" is widely used and understood. Both refer to the same thing.

Do I need a special meter for solar? If you want to export to the grid and be credited for it, yes - you need a bidirectional meter, installed and sealed by your utility. A standard single-direction meter cannot distinguish export from import, and in older electromechanical meters export can even register as consumption.

Can I buy and install one myself? No. The meter is the utility's revenue instrument. It is supplied, sealed and commissioned by the utility or an approved contractor as part of the connection process, even where you pay for the hardware.

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Whichever name your installer uses, the maths on your bill works the same way. Put your meter readings into the free net metering calculator and you will see your import, export and net position for the cycle in a few seconds.