Solar Calculators Pakistan 2026

Start with the Solar System Size Calculator. Enter your monthly kWh consumption (from your last bill) and it recommends the correct kW system for you (typical 5 kW for a Rs 20,000 to Rs 30,000 monthly bill household in Pakistan). Then run the Solar Payback Calculator with that system size and your bill amount to see the ROI in years. Finally, use the Solar Loan Calculator (All Banks) to compare EMI across HBL, Meezan, UBL, Bank Alfalah, MCB, BOP, Allied and NBP if you plan to finance the system.

NEPRA notified the Prosumer Regulations 2026 (SRO 251(I)/2026) on 9 February 2026, replacing 1:1 net metering with net billing for new solar customers. Exports are now credited at Rs 11 per unit (NAEPP wholesale rate) while imports are billed at full retail slab rates. Existing prosumers with agreements dated before Feb 9, 2026 keep their 1:1 net metering terms until their 7-year agreement expires (roughly 5,165 grandfathered applications with 250 MW capacity). Our Net Metering Calculator has a dual-mode toggle to model both regimes side by side.

Rule of thumb: 1 kW of solar produces roughly 130 to 150 kWh per month in Pakistan (Karachi and Sindh higher, Islamabad and Peshawar lower). For a monthly consumption of 500 kWh (typical urban household), a 4 to 5 kW system covers 80 to 100 percent of usage. For 800 kWh (larger house, multiple ACs), size at 7 kW. For 1200 kWh+, size at 10 kW. Our Solar System Size Calculator does this math with your actual bill data and geographic irradiance zone.

A 5 kW on-grid solar system costs Rs 750,000 to Rs 900,000 fully installed in July 2026, depending on panel brand (Longi, Jinko, JA Solar most common), inverter choice (Growatt, Solis, Inverex) and net metering approval fees. Turnkey install includes panels + inverter + mounting structure + wiring + net metering paperwork + commissioning. Cash payback under net billing works out at roughly 3 to 5 years on-grid, with substantial 25-year total savings. Hybrid systems (with battery) add Rs 300,000 to Rs 600,000 depending on battery capacity.

It depends on your load-shedding pattern. If you are in an area with 2 to 4 hour daily outages (most Pakistani cities in summer), a hybrid solar + battery system gives you backup during blackouts. If you have reliable grid (rare) or run a UPS, on-grid solar without battery has faster payback because you avoid the Rs 300k+ battery cost. Our Solar Battery Backup Calculator helps you size a battery bank based on the loads you want to run and the outage hours you need to cover.

As of July 2026: SBP Refinance Scheme (routed via Bank Alfalah, HBL) at 6 percent per annum is the cheapest if you qualify (income and property criteria). Among general solar loans, Bank of Punjab Shamsi Tawanai and NBP Roshan Ghar are competitive at KIBOR + 2-3 percent (roughly 13 to 15 percent). Meezan Bank offers Islamic Diminishing Musharakah at similar effective rates. Our Solar Loan Calculator (All Banks) compares EMI across 8 major banks side by side for your specific system cost and tenure.

On a Rs 25,000 to Rs 30,000 monthly non-protected household bill, a 5 kW on-grid solar system saves approximately Rs 20,000 to Rs 25,000 per month after net billing arithmetic. Payback under the SRO 251(I)/2026 net billing regime works out at roughly 3 to 5 years on-grid, against roughly 2 to 3 years under the old 1:1 net metering rules. Higher bills (Rs 40k+) see even faster payback because slab rates rise steeply above 500 units per month. Use our Solar Payback Calculator with your actual bill for a personalized ROI number.

Yes. The Net Metering Calculator has a dual-mode toggle for both the new SRO 251(I)/2026 net billing regime (Rs 11 per unit export) and the grandfathered 1:1 net metering regime for existing prosumers. Solar Payback Calculator uses net billing arithmetic by default and lets you override. All bank loan calculators use current KIBOR + spread quotes verified against each bank's public rate sheet on the last review date shown on the tool.