• By Best Solar Company PK
  • 10 Aug, 2026
  • Solar Guides
  • 8 min read

When the mercury touches 50°C in Multan and Taunsa Sharif and MEPCO cuts power for 12 to 14 hours a day, an inverter AC and a full tank of water stop being luxuries — they become survival. That is why **solar backup for load-shedding** has become the single most-requested upgrade across South Punjab this summer. Done right, a solar-plus-battery system keeps your ACs, ceiling fans and tube-well running straight through every outage block, day or night.

This guide shows you exactly how to size that system for a South Punjab home or farm, with real 2026 prices in PKR and the numbers you actually need before you spend a rupee.

Why South Punjab Needs Solar Backup More Than Anywhere in 2026

Rural feeders around Multan, Taunsa, Dera Ghazi Khan and Bahawalpur are among the hardest hit. According to Pakistan Today, villages across MEPCO's territory are facing **12 to 14 hours of daily, often unannounced, outages** this summer — right as temperatures peak.

The problem is brutal timing. The grid tends to disappear during the hottest afternoon hours and again late at night, exactly when you need cooling and when the tube-well should be filling the tank. A UPS alone can limp a few fans along; it cannot run a 1.5-ton AC or a 5 HP motor for hours. That gap is what a properly sized solar backup fills.

The goal is not just to survive the outage — it is to make the outage irrelevant. Your home should run the same whether MEPCO is on or off.

How to Size Solar Plus Battery Backup: The 3-Step Method

Sizing a solar backup for load-shedding comes down to three honest questions.

1. **What must keep running during an outage?** List only the essentials — ACs, fans, lights, fridge, tube-well. Leave out irons, geysers and other heavy loads you can defer. 2. **How many kWh do those loads use during the worst outage block?** Multiply each appliance's power by the hours you need it. This gives your battery size. 3. **How much solar do you need to run those loads AND recharge the battery by day?** In South Punjab you get roughly 5–5.5 peak-sun hours daily, so each 1 kW of panels yields about 5 units on a clear day.

Here is the typical power draw of the appliances South Punjab families most want to keep alive:

| Appliance | Typical power draw | Notes | |---|---|---| | 1.5-ton DC inverter AC | 900–1,400 W | Far kinder to batteries than a non-inverter AC | | Ceiling fan | 60–80 W | DC/BLDC fans use as little as 30 W | | LED light | 8–15 W | Negligible load | | Refrigerator | 150–300 W (average) | Compressor cycles on and off | | 5 HP tube-well motor | ~3.7–4 kW | Best run directly off solar in daylight |

A Real Multan Home Example: 2 ACs, Fans and Lights

Take a common Multan household: two 1.5-ton inverter ACs, six fans, eight LED lights and a fridge. During a 4-hour night outage the ACs and fans might draw around 3 kW combined, so you need roughly **10–12 kWh of usable battery** to ride it out comfortably.

To power those loads during the day and still refill the battery before the next night cut, an **8 kW solar array with a 10 kW hybrid inverter and 15 kWh of lithium** is the sweet spot. On a clear day that array makes ~40 units — enough to run the house and bank energy for after dark.

For a smaller family that only needs **one AC plus fans and lights**, a 5 kW array, 5 kW hybrid inverter and 10 kWh battery does the job. If you just want fans, lights and a fridge through outages, a 3 kW array with 5 kWh of lithium is plenty.

| Your need | Solar array | Usable battery | Hybrid inverter | Est. 2026 cost (installed) | |---|---|---|---|---| | Fans + lights + fridge | 3 kW | 5 kWh | 3–4 kW | PKR 6–8 lakh | | 1 AC + fans + lights | 5 kW | 10 kWh | 5 kW | PKR 11–15 lakh | | 2 ACs + fans (day tube-well) | 8–10 kW | 15 kWh | 10 kW | PKR 18–25 lakh |

Keeping the Tube-Well Running Through Outages

The tube-well deserves its own strategy. A motor is a heavy, surging load, and running it off a battery drains your reserve fast. The smarter move in South Punjab is to **run the tube-well directly off solar during daylight** and cool your home off the battery at night.

A 5 HP solar tube-well typically needs a **5–7.5 kW dedicated array**, while a 10 HP pump wants 10–15 kW. As solar tube-well specialists note, these pumps naturally work from about 9 a.m. to 4 p.m. — the exact hours MEPCO is most likely to be off — irrigating anywhere from 3 to 20 acres per day with zero fuel cost.

Complete solar tube-well systems run roughly **PKR 9 lakh for a 5 HP setup to PKR 20 lakh-plus for larger 10–15 HP systems**. Punjab's government is also expanding help: the CM Punjab Solar Agri Tube-wells Solarization Program 2026 offers subsidies to convert farm tube-wells to solar — worth checking before you buy privately.

A practical tip from installs across DG Khan and Taunsa: pair the tube-well with an overhead or underground **storage tank**. Fill it while the sun is up, and you have gravity-fed water all night without touching your battery.

Net Billing 2026: What Changed and How It Affects You

If you are also hoping to sell surplus power to the grid, the rules changed this year. On 9 February 2026, NEPRA scrapped the old net-metering system and moved new solar consumers to **net billing**.

The key differences:

  • **Buyback rate slashed.** New consumers now get roughly **PKR 8–11 per exported unit**, down from the old ~PKR 25/unit, per reporting by Profit / Pakistan Today.
  • **Imports still charged at full slab tariff.** Exported and imported units are no longer treated as equal.
  • **Existing net-metering agreements are grandfathered** at old rates until they expire.

The lesson for South Punjab: with export rates this low, **self-consumption and battery storage now beat selling to the grid.** Size your system to run your own loads and store the surplus — not to feed a grid that pays a fraction of what it charges you. That shift is exactly why battery backup, not just panels, is the priority in 2026.

Frequently Asked Questions

**How much does a solar backup system for load-shedding cost in Multan in 2026?** A backup that runs one AC plus fans and lights costs about PKR 11–15 lakh installed, including a 10 kWh lithium battery. Fans-and-fridge-only systems start near PKR 6 lakh, while a two-AC home with day-time tube-well support runs PKR 18–25 lakh.

**Can solar run my AC during a 12-hour outage in Taunsa?** Yes — if it is sized correctly. Solar runs the AC directly during daylight, and a 10–15 kWh lithium battery carries one or two inverter ACs through the night block. A DC inverter AC is essential; non-inverter units drain batteries far too quickly.

**Should I get lithium or lead-acid batteries?** For daily deep-cycling through long outages, lithium (LiFePO₄) is the clear winner. At roughly PKR 40,000 per kWh it costs more up front than lead-acid, but it lasts 3–4 times longer, charges faster and gives you far more usable capacity per rupee.

**Is net metering still worth it in 2026?** Under the new net-billing rules, export earns only about PKR 8–11 per unit. That makes storing and using your own power much more valuable than exporting it, so prioritise a hybrid system with battery backup over a grid-tied export setup.

The Bottom Line for South Punjab Homes and Farms

With 50°C days, 12–14 hour outages and a buyback rate that no longer rewards exporting, the winning setup for Multan and Taunsa in 2026 is clear: **a hybrid solar system sized to your real essential loads, backed by lithium storage, with the tube-well running off daytime sun.** Get the sizing right and load-shedding simply stops mattering.

Want a system matched to your exact bill and appliances? Get a free solar backup assessment from our South Punjab team, or read our complete guide to lithium battery backup in Pakistan before you buy.

Best Solar Company PK designs and installs reliable solar systems in Rawalpindi, Islamabad, Lahore, Multan, Taunsa Sharif and Karachi. Contact us for a free survey and the best advice for your home or business.