For a Pakistani farmer in 2026, the tube well is the single largest electricity or diesel expense on the farm. A 10 HP AC tube well running 8 hours a day in Bahawalpur or RYK burns Rs 60,000–90,000 of agri tariff units a month — if it is even on the grid. Diesel-powered tube wells cost 2–3x more per cusec delivered.
Solar tube wells in Pakistan in 2026 are no longer experimental. Roughly 50,000 solar tube wells are now installed across Punjab and Sindh, with a 60% Punjab Agriculture Department subsidy available for qualifying farmers and 2–3 year payback on most depths. This guide walks through the full picture: AC vs DC pump choice, sizing by bore depth, real installed costs, available subsidies, and the pitfalls farmers most commonly hit.
AC vs DC solar pumps — which to pick
The single biggest design choice in a solar tube well. The right answer depends on whether you are starting fresh or converting an existing tube well.
DC solar pumps
- Pros: 10–15% more efficient end-to-end (no inverter losses). 30% cheaper installed (no inverter or VFD). Simpler — panels feed pump controller directly.
- Cons: Cannot run on grid backup. Limited to roughly 15 HP for surface and 20 HP for submersible. Spare parts thinner outside major cities.
- Best for: New installations under 15 HP, off-grid farms in south Punjab and Sindh, RYK, Bahawalpur, Bhakkar.
AC solar pumps (with VFD)
- Pros: Use existing pump — convert by adding panels and a VFD (Variable Frequency Drive). Grid backup available. Easily up to 50 HP.
- Cons: 10–15% less efficient. Higher installed cost. VFDs sensitive to dust and heat.
- Best for: Conversions of existing tube wells, large farms above 15 HP, mixed-grid sites in central Punjab.
Sizing by bore depth
The right pump size depends on bore depth, required cusecs and total dynamic head (TDH = bore depth + delivery pressure + pipe friction). Rough Pakistan farm sizing:
| Bore depth | Pump HP | Cusecs | Acres served * | Solar array |
|---|---|---|---|---|
| 50 ft (shallow) | 3 HP | ~1.5 cusec | 8–12 | 3–4 kWp |
| 100 ft | 5 HP | ~1.5 cusec | 10–15 | 5–6 kWp |
| 200 ft | 7.5–10 HP | ~2 cusec | 15–25 | 7.5–10 kWp |
| 300 ft | 15–20 HP | ~2.5 cusec | 25–40 | 15–18 kWp |
| 400–500 ft | 25–30 HP | ~3 cusec | 40–60 | 25–30 kWp |
* Assumes flood irrigation, Punjab/Sindh kharif/rabi cropping pattern. Drip irrigation can double acres served per cusec.
Always have an electrical engineer compute TDH for your exact bore. Undersizing causes the pump to run dry; oversizing wastes panel investment. Our Solar System Designerhandles the array side; the pump and controller must match the borewell’s static and dynamic water levels.
2026 installed costs in Pakistan
Turnkey installed prices (panels + structure + DC pump or AC pump with VFD + controller + cabling + civil work + labour) in Punjab and Sindh, May 2026:
| System | Bore depth | Acres | Installed cost (PKR) |
|---|---|---|---|
| 3 HP DC | 50 ft | 8–12 | Rs 3.0–3.8 lakh |
| 5 HP DC | 100 ft | 10–15 | Rs 4.5–5.5 lakh |
| 7.5 HP DC | 150 ft | 12–20 | Rs 6.5–7.8 lakh |
| 10 HP DC | 200 ft | 15–25 | Rs 8–10 lakh |
| 15 HP AC + VFD | 250–300 ft | 25–35 | Rs 13–15 lakh |
| 25 HP AC + VFD | 400 ft | 40–55 | Rs 20–24 lakh |
Prices vary by district. Bahawalpur, Multan and RYK are typically 5–8% cheaper than Lahore or Faisalabad due to lower logistics and labour costs. Sindh (Hyderabad, Sukkur) is roughly on par with south Punjab.
Agri tariff vs solar — the TCO comparison
Pakistan’s agricultural tariff in 2026 (D1 category) is approximately Rs 8–13 per unit for off-peak and Rs 14–18 for peak hours, plus FPA and GST. A 10 HP tube well running 8 hours a day (~60 kWh/day, ~1,800 kWh/month) costs roughly Rs 35,000–50,000 per month on the grid, before line losses and outages.
Compare to solar:
- Grid agri 10 HP, 5 yrs: ~Rs 30 lakh in tariff bills (with 8% annual escalation).
- Solar 10 HP DC, installed Rs 9 lakh, 5 yrs: zero electricity cost, only Rs 50,000 maintenance.
- 5-year saving: ~Rs 20 lakh. Payback under 2.5 years.
For diesel tube wells (still common in rain-dependent or grid-deficit areas), payback drops to 12–18 months because diesel costs Rs 280+/litre in 2026.
Punjab subsidy: how to actually apply
The Punjab Solar Tube Well Programme has been the largest single solar subsidy in Pakistan’s history. Updated for 2026:
- Subsidy: Up to 60% of approved system cost, capped at Rs 5 lakh per farmer.
- Eligibility: Farmers with documented landholding (Fard), CNIC, and a working borewell. Priority for landholdings under 12.5 acres.
- System size: 5 HP to 20 HP approved configurations only.
- Apply through: District Agriculture Officer; portal at
agripunjab.gov.pk; window typically opens twice yearly (before kharif and rabi). - Approved vendor list: Only AEDB-certified EPCs eligible; Capital IT is on the list for several Punjab districts.
Sindh and KP equivalents
- Sindh Solar Energy Programme — up to 80% subsidy for landholdings under 16 acres in Tharparkar, Mirpurkhas, Sanghar. World Bank-funded.
- KP Solar Tube Wells — ongoing pilot in southern districts, 50% subsidy.
- Balochistan — standalone solar tube wells in Quetta, Pishin and Khuzdar under a federal-provincial cost-share.
The five most common farmer pitfalls
- Buying Tier-3 panels because they are 30% cheaper. Counterfeit panels degrade 3x faster and almost always void the subsidy claim. Insist on Longi, JA Solar, Jinko or Canadian Solar.
- Oversizing the pump. A 15 HP pump on a 100 ft bore wastes panel investment and over-pumps the aquifer. Match the pump to the bore, not the wishful crop area.
- Ignoring the controller.The MPPT controller / VFD is the brain — cheap units fail within 2 monsoons. Brands worth paying for: Lorentz (Germany), Grundfos SQFlex, Pedrollo, CRI.
- Skipping the lightning arrestor and proper earthing. Tube well sites in open fields are lightning magnets. A Rs 8,000 surge protector saves a Rs 4 lakh controller.
- Treating the panel array as a flat roof.Tube well panels in Pakistan should be tilted 25–30 degrees facing south, with at least 1 m clearance from the ground for goat and dust protection. Trackers add 15–20% yield but rarely justify their cost outside large commercial farms.
Hybrid solar tube wells: solar + grid backup
For farmers who want certainty during cloudy days or evening watering, hybrid configurations work well:
- AC pump with VFD that accepts both solar and grid input.
- Auto-switch (ATS) prioritises solar; falls back to grid when DC voltage is insufficient.
- Adds Rs 50,000–1 lakh to system cost, but eliminates downtime risk entirely.
Especially recommended for high-value crops (orchards, vegetables, dairy farms) where missed watering kills the crop.
Water table and aquifer responsibility
Solar tube wells run essentially free of operating cost. This has caused overpumping in some districts of Punjab (Sahiwal, Khanewal, Pakpattan), with reported water table drops of 1–3 ft/year. The environmentally responsible practice is to:
- Switch from flood to drip or sprinkler irrigation, which the same Punjab Agriculture Department supports with subsidies.
- Install a water meter on the discharge to track withdrawals.
- Match cropping pattern to water availability (cotton and sugarcane in saline zones, less water-intensive crops in low-table areas).
Real installation example: 10 HP DC system, Multan
A 12-acre cotton/wheat farm near Multan with a 180 ft bore, May 2026:
- 14 x Longi 585W panels (8.19 kWp), tilt-mounted at 28° south — Rs 2.66 lakh
- 10 HP Lorentz PS2 submersible DC pump — Rs 3.20 lakh
- Lorentz PS2 controller with MPPT, dry-run protection — Rs 1.10 lakh
- DC cabling (6 mm² tinned copper, 60 m), MC4, fuses, lightning arrestor — Rs 65,000
- Galvanised mounting structure, foundations, civil work — Rs 90,000
- Labour, transport, commissioning — Rs 50,000
- Total: Rs 9.01 lakh (before subsidy)
- After 60% Punjab subsidy (capped at Rs 5 lakh): farmer pays Rs 4.01 lakh.
- Replaces ~Rs 42,000/month agri tariff bill — payback under 10 months on net cost.
Next steps
- Solar System Designer — size the panel array for your specific bore depth and acreage.
- Solar Panel Buying Guide — pick Tier-1 panels that will survive 25 years in the field.
- Solar ROI & Payback 2026 — full financial logic if you are comparing solar to grid extension.
- Get a quote from Capital IT — AEDB-certified EPC, eligible for Punjab subsidy claims, with farm installs across Multan, Bahawalpur, RYK, Sahiwal and Faisalabad.
FAQ
How much does a solar tube well cost in Pakistan in 2026?
A 5 HP solar tube well at 100 ft bore depth costs Rs 4.5–5.5 lakh fully installed. 10 HP for 200 ft runs Rs 8–10 lakh. Deeper bores (300 ft+) cost Rs 12–18 lakh. The Punjab Agriculture Department subsidy can reduce the farmer’s net cost by up to Rs 5 lakh.
Should I install an AC or DC solar pump?
DC pumps are 10–15% more efficient and 30% cheaper because they need no inverter. AC pumps work better for conversions of existing tube wells and for systems above 15 HP. For new installations under 15 HP, DC is the standard choice in Punjab and Sindh.
Does the Punjab Agriculture Department subsidise solar tube wells?
Yes. The Punjab Solar Tube Well Programme offers up to 60% subsidy capped at Rs 5 lakh per farmer for approved 5–20 HP systems. Apply through your district agriculture office or via agripunjab.gov.pk during the seasonal application windows.
What size pump do I need for a 200 ft bore?
A 200 ft bore typically needs a 7.5–10 HP pump delivering 1.5–2.5 cusecs, irrigating 12–25 acres. The matching solar array is 7.5–10 kWp using 13–17 panels at 585–610 W each.
How long does a solar tube well last?
Panels last 25 years (with 30-year power warranty on Tier-1 brands). DC pumps last 7–10 years before bearing/rotor service. AC pumps last 10–15 years. Controllers last 8–12 years. Overall system lifecycle is 25 years assuming one pump and one controller replacement.
Can I run a solar tube well at night?
Not directly — without battery storage, the pump runs only when panels produce. Battery storage for irrigation is economically rarely viable. Most farmers schedule watering during sunlight hours (8 AM–4 PM) and use hybrid systems with grid backup for emergency evening watering.
What is the maintenance cost of a solar tube well in Pakistan?
Roughly Rs 8,000–15,000 per year for panel cleaning (twice yearly), connection inspection, and controller health check. Major service (pump pull-out, bearing replacement) every 5–7 years costs Rs 35,000–75,000 depending on pump HP.
Last updated: 2026-05-17. Reviewed by the MyEnergyHub Solar Team.