NEPRA 2026 Net-Metering Equipment Checklist Pakistan — Complete List
NEPRA's 2025 Prosumer Regulations (effective February 2026) rewrote the rules for grid-tied solar in Pakistan. Existing solar customers who applied before the SRO keep their old buyback rate of Rs 25.32/unit. New applicants get only Rs 8.13/unit — but more critically, the equipment requirements changed: Type B residual current devices became mandatory, DC isolators are required at every string, AC SPDs are required at the inverter output, and the bi-directional meter must meet IEC 62053-22 Class 1 accuracy. Miss any single requirement and your DISCO inspection fails.
This is the complete NEPRA 2026 net-metering equipment checklist for Pakistani prosumers — every device required between the panel and the grid meter, with CNC part numbers for each. Print this before your DISCO inspection.
1. NEPRA 2026 equipment categories (overview)
| Stage | Required equipment | NEPRA standard |
|---|---|---|
| DC side — PV string | DC breaker + fuse + SPD + isolator per string | IEC 60947-2 (DC), IEC 60269-6 (PV fuse) |
| Battery (if hybrid) | DC isolator + breaker + SPD | IEC 60947-2 (DC) |
| Inverter | Hybrid/on-grid inverter with anti-islanding | IEC 62116 + IEC 61727 |
| AC output | AC breaker + Type B RCBO + SPD + isolator | IEC 60947-2 + IEC 62423 + IEC 61643-11 |
| Grid interface | Bi-directional meter (DISCO supplies) | IEC 62053-22 Class 1 |
| Earthing | Earth electrode + bonding | IEC 60364-5-54 |
| Lightning protection | Rooftop lightning rod (if applicable) | IEC 62305 |
2. DC string-side equipment (per PV string)
2.1 DC Breaker
Sized at 1.25× string Isc, voltage rating > Voc × 1.25. Full DC breaker guide.
- Typical 5 kW residential: CNC YCB8 16A 500V PV from PKR 1,600
- Typical 10 kW residential: CNC YCB8 25A 1000V PV from PKR 3,400
- Industrial 1500V: CNC YCB8 32A 1500V PV from PKR 8,500
2.2 DC Fuse
gPV class, sized per IEC 60269-6. Inline 10×38 or 14×51 cartridge.
- Typical residential: CNC YCF8 PV 16A 1000V from PKR 1,800
- Industrial: CNC YCF8 PV 25A 1500V from PKR 3,200
2.3 DC SPD (per string)
Type II Class C, voltage rating >= 1.5× Voc. SPD selection guide.
- 500V system: CNC YCS6-DC-2P-500V from PKR 3,800
- 1000V system: CNC YCS6-DC-2P-1000V from PKR 5,500
- 1500V industrial: CNC YCS6-DC-2P-1500V from PKR 9,500
2.4 DC Isolator (upstream of inverter)
Lockable in OFF position. Isolator guide.
- Residential 500V: CNC YIS-DC-32-2P-500V from PKR 1,850
- 1000V: CNC YIS-DC-32-2P-1000V from PKR 3,400
- 1500V industrial: CNC YIS-DC-63-4P-1500V from PKR 8,500
3. Battery-side equipment (hybrid systems only)
- DC Breaker 100–200A — sized for max battery discharge current. CNC YCB8 100A 500V from PKR 4,200.
- DC Isolator — for maintenance. CNC YIS-DC-100-2P-500V from PKR 5,500.
- DC SPD — if battery cabling runs outdoors. CNC YCS6-DC-500V from PKR 3,800.
- BMS — usually integrated in the lithium battery itself. See lithium battery guide.
4. Inverter requirements
The inverter itself must meet NEPRA 2026 specs:
- Anti-islanding per IEC 62116 — inverter automatically disconnects from grid within 2 seconds of grid loss
- Voltage/frequency ride-through per IEC 61727 — inverter maintains connection during minor grid disturbances
- Power quality: total harmonic distortion < 5% per IEC 61727
- Anti-reverse polarity on PV inputs
Approved brands for NEPRA 2026: Inverex, Knox, Crown, Solis, Solarmax, Growatt, Fronius, SMA. See solar inverter buying guide.
5. AC-side equipment (inverter output to grid)
5.1 AC Breaker
Sized at 1.25× inverter output current. AC breaker guide.
- 5 kW single-phase: CNC YCB7 2P 32A from PKR 900
- 10 kW 3-phase: CNC YCB7 4P 25A from PKR 1,900
5.2 RCBO Type B (NEPRA 2026 mandatory)
Detects smooth DC leakage that Type AC and Type A miss — required where the inverter's DC bus could leak DC into the grid. RCBO guide.
- 5 kW single-phase: CNC YCB10 2P 25A Type B 30 mA from PKR 11,500
- 10 kW 3-phase: CNC YCB10 4P 32A Type B 30 mA from PKR 18,500
5.3 AC SPD (Type II)
- 1-phase: CNC YCS6-T2-1P 20kA from PKR 2,500
- 3-phase: CNC YCS6-T2-3P 20kA from PKR 5,800
- 3-phase + N: CNC YCS6-T2-4P 40kA from PKR 8,800
5.4 AC Isolator
- 1-phase 32A: CNC YIS-AC-32-2P from PKR 950
- 3-phase 63A: CNC YIS-AC-63-4P from PKR 2,450
6. Grid interface (DISCO-supplied)
- Bi-directional energy meter: DISCO installs at meter point after net-metering application approval. Must meet IEC 62053-22 Class 1 (residential) or Class 0.5 (commercial).
- Sealed enclosure: DISCO inspector verifies that meter and surrounding cabling are tamper-sealed.
7. Earthing & lightning protection
- Earth electrode: copper rod minimum 1.5m driven into ground. CNC YCS6-LA-GROUND kit PKR 12,500.
- Earth resistance: must be < 10 ohm per IEC 60364-5-54. Test with earth-fault loop tester before DISCO inspection.
- Bonding: all metal parts (panel frames, mounting rails, inverter chassis, DB box) bonded to earth electrode.
- Lightning rod (if building has rooftop array on a metal-roof or in lightning-prone area like Islamabad, Peshawar): CNC YCS6-LA-ROD copper PKR 4,500 + down-conductor PKR 850/m.
8. The pre-inspection checklist (print this)
- ☐ DC breakers installed per PV string with correct voltage + current rating
- ☐ DC fuses installed inline with each string
- ☐ DC SPDs installed on PV side (and battery side if hybrid)
- ☐ DC isolator installed upstream of inverter, lockable
- ☐ Hybrid inverter has IEC 62116 anti-islanding certification (visible on datasheet)
- ☐ Battery (if applicable) has integrated BMS and proper DC protection on cabling
- ☐ AC breaker sized for inverter output, installed at output
- ☐ Type B RCBO installed on solar feed (NOT Type AC or Type A — auto-fail)
- ☐ AC SPD Type II installed at inverter output sub-DB
- ☐ AC isolator installed upstream of grid connection point
- ☐ Earth electrode driven, resistance verified < 10 ohm
- ☐ All metal parts bonded to earth (test continuity)
- ☐ All cabling sized correctly per NEPRA distance + current tables
- ☐ Single-line diagram printed and signed by Pakistan-licensed electrical engineer
- ☐ Equipment list with serial numbers attached to single-line diagram
- ☐ Lightning rod (if applicable) installed and connected to dedicated earth
9. CNC equipment budget for typical Pakistani residential install
| Install size | CNC equipment budget |
|---|---|
| 5 kW single-phase, no battery | PKR 35,000–48,000 |
| 5 kW single-phase + battery | PKR 48,000–65,000 |
| 8 kW single-phase + battery | PKR 60,000–82,000 |
| 10 kW 3-phase commercial + battery | PKR 95,000–130,000 |
| 15 kW 3-phase + battery + lightning rod | PKR 145,000–180,000 |
This is for CNC NEPRA-compliant protection only — the inverter, panels, battery, and structure are separate.
10. FAQ
Will DISCO inspectors accept Tomzn or generic Daraz breakers for NEPRA 2026 net-metering?
Officially yes if the manufacturer certifies IEC compliance. In practice, DISCO inspectors prefer documented IEC certifications. CNC's full IEC paperwork (60947-2, 60898-1, 61009, 62423, 61643-11) is well-known to DISCO offices and approvals are routine. Generic brands sometimes need extra documentation, slowing approval.
Can I do my own DISCO inspection prep or do I need a licensed electrician?
You must engage a Pakistan-licensed electrical engineer to sign the single-line diagram. You can do the install yourself but the diagram and electrical-engineer sign-off are mandatory.
What's the DISCO inspection turnaround?
Typical 2-4 weeks from application submission to inspection visit. Pass rate first time: ~70% with proper CNC equipment install, ~40% with generic equipment.
What's the most-missed requirement causing DISCO rejection?
Type B RCBO is the #1 cause of NEPRA 2026 rejection in our experience. Many existing installs use Type AC; inspectors check this specifically. Replace with CNC YCB10 Type B before re-applying.
Do I need lightning protection for a small 5 kW install?
Not strictly required by NEPRA, but recommended for Islamabad / Peshawar / mountain regions where ground-strike density is high. Type II AC SPD is sufficient for low-strike areas.
11. Related CNC guides
- NEPRA Net-Metering Rules 2026
- Solar Panel Buying Guide
- Solar Inverter Buying Guide
- Lithium Battery Buying Guide
- RCBO Type B Guide
- DC Breaker Guide
- Surge Arrester Guide
- Isolator Switch Guide
12. Need a complete NEPRA 2026 protection bundle quote?
Send your system specs (PV kW, battery kWh, single-phase or 3-phase) on WhatsApp +92 326 1111 376. We'll quote the complete CNC NEPRA-compliant protection package. Free Pakistan delivery. Same-day dispatch from Lahore PECO Road.
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