Pakistan Solar Calculator 2026 — Net Metering, Net Billing, Hybrid & Off-Grid
Calculate your monthly bill under the old (legacy) net metering and the new NEPRA net billing regime, or plan a brand-new system: size, battery, cost, monthly generation for your city, payback and IRR — with a bill photo/PDF reader built in.
⚡ Fastest start — upload your electricity bill
Take a clear photo (or PDF) of your bill. We read it on your device — nothing is uploaded — and auto-fill your DISCO, units, exports, sanctioned load and tariff category. Then choose a path below, or skip this and enter values manually.
JPG, PNG or PDF · works with LESCO, IESCO, MEPCO, FESCO, GEPCO, PESCO, HESCO, SEPCO, QESCO, TESCO & K-Electric bills
What do you want to do?
Prosumer bill calculator
For consumers who already have a NEPRA-approved solar connection and a bi-directional (green) meter. Rates default to the FY 2025-26 schedule and can be edited in “Advanced rates”.
All DISCOs use the NEPRA uniform domestic tariff. K-Electric slabs differ slightly — edit in Advanced if needed.
Legacy agreements keep 1:1 unit exchange until the 7-year term expires (NEPRA amendment, 16 Feb 2026).
A net-metering / prosumer connection is 3-phase with a bi-directional TOU meter — billing is peak / off-peak, not slabs. Use the slab options only for comparison or non-TOU cases.
“Units consumed / import” on your bill.
“Units delivered / export” on your bill.
Not on the bill — only used to show your true total saving.
Peak ≈ 6–10 pm (season-wise; KE 7–11 pm summer). Leave blank to assume 25% of imports.
Advanced rates & charges (editable)
Step 1 — Choose your system type
ℹ️ How each mode works + NEPRA Prosumer Regulations 2026 rules (tap to expand)
Net billing (on-grid) — the new “net metering”
Your inverter feeds home loads first; surplus goes to the grid through a bi-directional meter. Under the NEPRA (Prosumer) Regulations 2026 (SRO 251(I)/2026, in force 9 Feb 2026), the old one-for-one unit exchange is replaced by net billing: every unit you import is billed at your normal consumer tariff (≈ Rs 37–55 all-inclusive for most unprotected homes), while every unit you export is credited at the National Average Energy Purchase Price (NAEPP), ≈ Rs 10–11 per unit. Key conditions:
System capacity ≤ your sanctioned loadMax 1 MWAgreement term: 5 yearsNEPRA concurrence fee Rs 1,000 per kWAll interconnection + meter costs paid by youNo new connection if the local transformer is already ≥ 80% loaded≥ 250 kW needs a load-flow studyExcess credit carried forward / paid quarterlyBuyback rate can be revised by NEPRALegacy net metering (closed to new applicants)
Agreements signed before 9 Feb 2026 (and ~5,165 applications filed before 8 Feb 2026) keep the old deal until their 7-year term ends: units exchanged 1:1 and quarterly surplus bought back at ≈ Rs 26/unit. Enhancing your system capacity forfeits this protection and moves you to net billing.
Peak hours (TOU meters)
| Season | DISCO peak hours |
|---|---|
| Dec – Feb | 5:00 – 9:00 pm |
| Mar – May | 6:00 – 10:00 pm |
| Jun – Aug | 6:30 / 7:00 – 10:30 / 11:00 pm |
| Sep – Nov | 6:00 – 10:00 pm |
| K-Electric | ≈ 7:00 – 11:00 pm (summer); off-peak 11 pm – 7 am |
Exact windows are notified by each DISCO and can shift — check your bill's TOU box.
Hybrid
A hybrid inverter plus battery lets you use solar at night and during outages. Under net billing economics, a stored unit is worth your full retail rate (Rs 40–65 with taxes) instead of the Rs ~11 export credit — which is why batteries now often pay for themselves. You can still sign a prosumer agreement to sell whatever surplus remains.
Off-grid
No DISCO involvement, no NEPRA approval needed. You need panels sized with headroom for winter/cloudy days and a battery bank with 1–2 days of autonomy. Usually chosen where the grid is unavailable or extremely unreliable; per-unit cost is highest because batteries do all the balancing.
Step 2 — Tell us about your usage
Sets solar generation per kW (Global Solar Atlas long-term averages).
Average month. Don’t know? Use the Load estimator or upload your bill below.
Typical home 35–50%. Higher if ACs/pumps run in daytime.
Printed on your bill. New systems cannot exceed this (2026 rules).
If set, we cap the design to your budget and tell you what it buys.
Advanced assumptions (prices, rates, losses — editable)
Net metering → net billing: what changed in 2026
| Legacy net metering (2015 rules) | Net billing — Prosumer Regulations 2026 | |
|---|---|---|
| Who | Agreements signed before 9 Feb 2026 (protected until term expiry) | All applications from 9 Feb 2026 onwards |
| Export value | 1:1 unit offset; quarterly surplus paid ≈ Rs 26/unit | Credited at NAEPP ≈ Rs 10–11/unit (revisable by NEPRA) |
| Import value | Only net units billed at your slab | All imported units billed at full retail tariff (≈ Rs 37–55 incl. charges) |
| Contract term | 7 years | 5 years (renewable by mutual consent) |
| Capacity limit | Up to 1.5× sanctioned load (in practice) | ≤ sanctioned load, max 1 MW; transformer must be < 80% loaded |
| Fees | Meter + processing | Meter + interconnection + NEPRA concurrence fee Rs 1,000/kW |
| Best strategy | Oversize and export freely | Size for self-consumption; add a battery; shift loads to daytime |
⚠️ If a legacy consumer increases system capacity or lets the agreement lapse, the connection shifts to net billing. Buyback rates under the 2026 regime are reviewed by NEPRA and may change during your contract.
How to apply for a prosumer (net billing) connection — 2026 procedure
- Install a compliant system through an AEDB/PPIB-registered installer: on-grid or hybrid inverter with anti-islanding (IEC 62116 / UL 1741), DC+AC surge protection and earthing. Capacity must not exceed your sanctioned load.
- Apply to your DISCO (LESCO, IESCO, MEPCO, FESCO, GEPCO, PESCO, HESCO, SEPCO, QESCO, TESCO or K-Electric) with CNIC, latest bill, single-line diagram and inverter datasheets. The DISCO must acknowledge within 5 working days.
- Technical review within 15 days — feeder/transformer loading is checked (rejected if the transformer is already ≥ 80% loaded; systems ≥ 250 kW need a load-flow study).
- Pay the demand notice — bi-directional meter (≈ Rs 18,000–28,000), interconnection works, and the NEPRA concurrence fee of Rs 1,000 per kW (e.g. Rs 10,000 for a 10 kW system). NEPRA issues concurrence within 7 working days.
- Meter installation within 15 days of payment, followed by inspection/commissioning.
- Sign the 5-year agreement. Read the buyback clause carefully — it governs your export rate and can be revised by NEPRA. Then check the import/export readings on every bill.
FAQs — solar, net metering & net billing in Pakistan (2026)
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Disclaimer: PakCalc estimates are for guidance only. Tariffs, surcharges, FPA/QTA, taxes and the NEPRA buyback rate change frequently — always verify against your latest bill, the NEPRA tariff SRO and your DISCO before making an investment decision. Rate defaults last reviewed July 2026 (FY 2025-26 schedule + Prosumer Regulations 2026). This tool is not affiliated with NEPRA or any DISCO. © PakCalc.pk — unauthorised copying of this tool is prohibited.