All guidesGuideOctober 6, 2026

Green meter and DISCO application checklist for net billing

The green meter is the visible part of the process, but the application file is what decides whether your solar system can legally export and receive billing credit. A complete file should cover eligibility, sanctioned load, technical data, drawings, protection, agreement, the applicable approval or concurrence, demand notice, testing, meter installation, and final bill verification.

SolarCalculator.com.pk11 min read
Key takeaways
  • Confirm eligibility before buying hardware: three-phase connection, sanctioned load, inverter type, and DISCO feasibility matter.
  • Ask for every submitted form and drawing; the file is in your name, not only the installer's.
  • The process includes DISCO acknowledgement, review, agreement, demand notice, commissioning, and the applicable approval or concurrence.
  • From the August 6 amendment, DG of 25 kW or less needs licensee approval instead of NEPRA concurrence. Above 25 kW, the April notification lists a Rs. 1,000/kW concurrence fee.

How this guide was prepared

SolarCalculator.com.pk explains the cited official documents and adds its own worked calculations. Examples state their assumptions and are illustrative; they are not measurements from customer installations. Dealer prices are dated snapshots and require a new written quote. This is independent publisher research, not an endorsement by the authorities or manufacturers linked below.

Quick answer

A green meter is the common market name for a bidirectional or approved import/export metering setup. It records electricity coming from the grid and surplus electricity going to the grid. Under the 2026 prosumer framework, that metering feeds the net billing calculation.

Do not treat the green meter as an accessory that can be added after the solar system is already running. Your system design, inverter choice, sanctioned load, protection gear, drawings, DISCO approval, and meter commissioning all connect to the same file.

Eligibility checks before you pay an advance

The practical eligibility screen starts with your electricity connection. Ministry guidance for net metering has long emphasized a three-phase connection and a bidirectional meter. NEPRA's 2026 regulations define eligible applicants as certain 3-phase 400V or 11kV consumers and cap the proposed distributed generation facility at the sanctioned load of the premises, unless later revised by notification.

Also ask the installer to check local transformer capacity and DISCO constraints. NEPRA's 2026 regulations say the licensee should not entertain an application where distributed generation capacity connected to a particular distribution transformer has reached 80% of its rated capacity.

  • Name on bill and CNIC/company record match or name-change path is clear.
  • Connection is three-phase or the upgrade cost and timeline are known.
  • Sanctioned load supports the proposed solar capacity.
  • Inverter model is acceptable for the filing route and system type.
  • Local transformer and feeder constraints are checked before quote finalization.

Evidence for this section: NEPRA Prosumer Regulations 2026, S.R.O. 251(I)/2026

Documents to keep ready

Exact file requirements vary by DISCO, city, consumer category, and current portal/process. Still, the same document families appear repeatedly in NEPRA schedules and DISCO checklists: consumer identity, electricity bill, application forms, agreement, technical data, drawings, site plan, affidavit, and payment evidence where applicable.

Ask your installer for a PDF copy or scanned copy of the final submitted file. If there is a future billing dispute, capacity change, inverter replacement, property sale, or complaint, those documents matter.

Document groupExamples to request
Consumer identityCNIC/NTN/company documents, contact details, ownership or occupancy proof if required
Billing recordLatest paid electricity bill, reference number, sanctioned load, tariff category
Technical filePanel and inverter datasheets, capacity, serials, single-line diagram, protection details
Site detailsAddress, roof/site plan, disconnect switch location, earthing/protection placement
Regulatory formsApplication, interconnection agreement, concurrence/licence documents, affidavit where required
Payment evidenceDemand notice, meter/interconnection charges, applicable fee receipts

Evidence for this section: NEPRA Prosumer Regulations 2026, S.R.O. 251(I)/2026 · HESCO checklist for net metering applications

Application flow under the 2026 framework

NEPRA's 2026 regulations set a staged process. Submit the application and documents to the licensee, which checks completeness and technical feasibility. The agreement, charge estimate, payment, testing and metering follow. Read this process with the August 6 amendment: facilities of 25 kW or less receive licensee approval without NEPRA concurrence; larger facilities retain the concurrence route. Billing begins with the applicable approval or concurrence.

In the real world, follow-up still matters. Keep dates, challans, demand notice, inspection notes, and meter details. When the first post-commissioning bill arrives, compare import/export registers with meter readings and inverter monitoring.

  • File submission to DISCO/licensee.
  • Acknowledgement and missing-document correction.
  • Initial technical review and feasibility check.
  • Agreement signing and licensee approval for 25 kW or less; authority concurrence where applicable above that capacity.
  • Demand notice/payment for interconnection and meter work.
  • Installation, testing, commissioning, and billing start.
  • First bill verification against meter registers.

Evidence for this section: NEPRA Prosumer Regulations 2026, S.R.O. 251(I)/2026 · NEPRA S.R.O. 1330(I)/2026 small-system approval amendment

Fees and charges to clarify

April's notification lists nil concurrence fee at 25 kW or less and Rs. 1,000 per kW for a facility above 25 kW. August's amendment then removed the concurrence requirement for the smaller category, substituting licensee approval. Metering, wiring, testing, service cable and DISCO demand-notice costs remain separate from a NEPRA concurrence fee.

A quote that says green meter included should still explain what is included: meter cost, testing, application service, drawings, visit charges, demand notice, service cable, protection gear, and any correction work required by the DISCO.

Evidence for this section: NEPRA S.R.O. 709(I)/2026 prosumer concurrence fee notification · NEPRA S.R.O. 1330(I)/2026 small-system approval amendment

Worked checks before signing a green-meter package

Use these hypothetical cases to keep eligibility and fees separate. Regulation 3(2) limits proposed DG capacity to sanctioned load. After the August amendment, a facility of 25 kW or less uses licensee approval without NEPRA concurrence; above that size the April fee is Rs. 1,000 per kW. DISCO meter and connection costs still need their own estimate.

  • The fee example does not establish technical feasibility, transformer headroom or application approval.
  • Request the current official notification and your own DISCO demand notice if the quoted charges differ.
Illustrative caseResultEvidence to request
12 kW proposed DG; 10 kW sanctioned loadDoes not meet the stated capacity limitA revised design or approved load change before filing
20 kW DGLicensee approval; no NEPRA concurrenceSeparate written meter/interconnection demand notice
30 kW DGNEPRA concurrence fee: 30 × Rs. 1,000 = Rs. 30,000Receipt and separate DISCO charges; do not charge only the extra 5 kW

Evidence for this section: NEPRA Prosumer Regulations 2026, S.R.O. 251(I)/2026 · NEPRA S.R.O. 709(I)/2026 prosumer concurrence fee notification · NEPRA S.R.O. 1330(I)/2026 small-system approval amendment

Post-approval handover checklist

The project is not complete when panels are mounted. It is complete when the system is safely commissioned, monitoring works, documents are handed over, and the bill shows the correct import/export treatment.

  • Signed agreement, concurrence/licence/approval copy, and demand notice receipts.
  • Panel serial list, inverter serial, warranties, datasheets, and monitoring login.
  • Single-line diagram, protection layout, earthing details, and breaker labels.
  • Meter number, import/export register photos, commissioning date, and first-bill check.
  • Written process for inverter fault, panel replacement, capacity expansion, and complaint escalation.

FAQ

Is a green meter the same as net billing?

No. Green meter is the common name for the metering setup. Net billing is the billing mechanism that values imported and exported electricity under the applicable rules.

Can I apply with a single-phase connection?

Power Division guidance says a three-phase connection is mandatory for net metering. If your home is single-phase, price and time the three-phase upgrade before finalizing the solar package.

Does a home system below 25 kW need NEPRA concurrence?

The August 6, 2026 amendment exempts DG facilities of 25 kW or less from NEPRA concurrence and requires approval by the concerned distribution licensee. This does not remove the DISCO application, technical checks, approved metering or other interconnection requirements.

Who should submit the DISCO application?

Usually the installer/EPC prepares and submits it, but it is your consumer reference and your agreement. You should keep copies and understand what is submitted.

References and price snapshots

NEPRA Prosumer Regulations 2026, S.R.O. 251(I)/2026Used for the 2026 net billing framework, application process, agreement term, metering, billing, and savings/repeal provisions.NEPRA S.R.O. 709(I)/2026 prosumer concurrence fee notificationUsed for current concurrence-fee treatment: nil for 25 kW or less and Rs. 1,000/kW above 25 kW.NEPRA S.R.O. 1330(I)/2026 small-system approval amendmentThe August 6, 2026 amendment exempts DG facilities of 25 kW or less from NEPRA concurrence and assigns approval to the concerned distribution licensee. DISCO approval, interconnection requirements and metering still apply.Ministry of Energy, Power Division net metering FAQUsed for practical requirements such as three-phase connection, bidirectional meter, inverter, vendor, equipment, and monthly/quarterly billing points.HESCO checklist for net metering applicationsUsed as a DISCO document checklist reference for forms, CNIC, bill, technical data, drawings, site plan, and SDO certificate.
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