• By Best Solar Company PK
  • 24 Aug, 2026
  • Solar Policy
  • 8 min read

Pakistan's rooftop solar boom has hit a turning point that most homeowners never saw coming. For years the pitch was simple: install panels, export your surplus to the grid, and let the meter run backward. In 2026 that story has changed — and the government itself is sounding the alarm.

The Power Division has warned that solar and wind generation may have to be **forcibly curtailed** — literally switched off or throttled — as daytime demand on the national grid falls. If you own a rooftop system, or you're about to buy one, this is the single most important policy shift to understand this year. Understanding **solar curtailment** now is the difference between a system that keeps paying you back and one that quietly wastes half its output.

What Is Solar Curtailment, and Why Now?

Curtailment means the grid operator deliberately reduces or blocks electricity from generators — including solar and wind — because the system can't absorb it. It happens when supply exceeds what the grid can safely handle at that moment.

Pakistan has reached that moment faster than anyone predicted. According to Power Minister Awais Leghari, the country **no longer faces a generation shortage** — the challenge has shifted to storage and grid flexibility. Nearly **38,000 MW of distributed solar** has been installed on rooftops through consumer-led investment, and solar now supplies up to **25% of daytime electricity** in major cities.

That sounds like a success story, and it is. But it creates a physics problem the grid was never built for.

The Duck Curve Comes to Pakistan

Here is the core issue in plain terms:

  • At midday, millions of rooftops pump surplus power into the grid at the exact hour demand is lowest.
  • After sunset, solar output collapses to zero — right when homes switch on lights, fans, ACs and TVs.
  • The grid must ramp fossil plants up and down violently to cope, which is expensive and unstable.

Energy engineers call this the "duck curve." When too much midday solar has nowhere to go, the operator's only lever is curtailment — telling generators to stop feeding in.

When daytime demand falls below what solar is producing, the grid doesn't reward your extra units — it refuses them. Curtailed energy is energy you generated but were never paid for.

For a rooftop owner, forced curtailment means your afternoon export — the surplus you were counting on to earn credit — can be rejected or paid at a token rate. Your panels keep generating; your return does not.

Net Billing Already Made Export Less Attractive

Curtailment doesn't arrive in a vacuum. It lands on top of a rule change that already slashed the value of exporting power.

Under the **NEPRA (Prosumer) Regulations, 2026**, effective **9 February 2026**, Pakistan moved from net metering to **net billing**. The difference is brutal for anyone who relied on export income:

| Feature | Old Net Metering | New Net Billing (2026) | |---|---|---| | Exported unit value | Equal to imported unit (1:1) | Buyback ~Rs 10–11/unit | | Imported unit cost | Offset by exports | Full retail Rs 55–65/unit | | Contract term | 7 years | 5 years | | Best strategy | Export everything | Consume it yourself |

Read the table again. You export a unit for roughly **Rs 11**, but you buy a unit back in the evening for **Rs 55–65**. That gap — a 5x to 6x penalty — is the whole game now.

If you already had a net-metering agreement before 8 February 2026, you're **grandfathered** under the old terms for the life of your contract. Around 5,165 applications for about 250 MW filed before the cutoff were honoured under the old policy. Everyone installing today lives under net billing.

Why Self-Consumption Plus Batteries Is the New Hedge

Put curtailment and net billing together and the conclusion is unavoidable: **the value is no longer in selling power — it's in using your own.**

Every unit you consume yourself is a unit you don't buy back at Rs 55–65. That's your real "rate of return" now, and it dwarfs the Rs 11 buyback. Even the Power Minister has framed the fix in exactly these terms — solar growth will be **curtailed unless supported by battery systems** that store excess daytime generation for evening use.

Batteries flip your economics:

  • **Shift your solar to the evening peak.** Store cheap midday sun, run your home at night without buying grid power.
  • **Immunise yourself from curtailment.** If the grid won't take your surplus, your battery will. Nothing is wasted.
  • **Protect against load-shedding and tariff hikes.** Stored energy is a buffer against both outages and the next round of price increases.

A practical, real-world tip from installations we've seen this year: **size your system for self-consumption, not export.** A slightly smaller array paired with a **5–10 kWh lithium (LFP) battery** now beats an oversized export-heavy system with no storage. Aim to cover your own evening load first; treat any grid export as a bonus, not the business case.

Yes, batteries add cost — a quality LFP battery typically runs **Rs 300,000–600,000** depending on capacity in 2026. But when the alternative is buying evening power at Rs 55–65/unit while your afternoon surplus gets curtailed for Rs 11, the payback maths increasingly favours storage. If you're weighing a new system, start with our guidance on choosing the right solar setup for your home and understanding net billing changes.

What Rooftop Owners Should Do in 2026

  • **New buyers:** Design for self-consumption. Budget for a battery from day one rather than bolting one on later.
  • **Existing net-metering customers:** You're grandfathered — protect that contract, and consider adding storage to lift self-consumption further.
  • **Businesses with daytime load:** You're best positioned. Factories, offices and shops that consume power at midday can absorb their own solar directly and dodge both curtailment and the buyback penalty.
  • **Everyone:** Track your usage pattern. The more of your consumption happens after sunset, the more a battery pays off.

Frequently Asked Questions

**What does forced solar curtailment mean for my rooftop system?** It means the grid operator can reduce or refuse the surplus power your panels export during low-demand daytime hours. Your panels keep producing, but that rejected energy earns you nothing — which is why storing and using your own power matters more than exporting.

**Will curtailment affect existing net-metering customers?** Grandfathered net-metering contracts (filed before 8 February 2026) keep their old export terms. However, curtailment is a physical grid-management action, so any generator can in principle be throttled during extreme surplus. Adding a battery insulates you regardless of policy.

**Is it still worth installing solar in Pakistan in 2026?** Yes — but the winning strategy has changed. With retail power at Rs 55–65/unit and buyback at only ~Rs 11, solar still pays off strongly when you consume your own generation. The savings come from avoiding expensive grid imports, not from selling to the grid.

**How big a battery do I need to hedge against curtailment?** For most homes, a 5–10 kWh LFP battery covers evening load — lights, fans, a fridge and some cooling. Size it to your after-sunset consumption rather than your total daily use, and expand later if needed.

The Bottom Line

The Power Division's curtailment warning is not a threat to solar — it's a signal that solar has won so completely that the grid can't keep up. The rules of the game have simply moved. In 2026, the smart rooftop owner stops chasing export credits and starts capturing every unit for themselves. Self-consumption plus a right-sized battery is the hedge that turns a curtailment risk into a personal energy advantage.

Want a system built for the net-billing era, not the last one? Talk to our team for a self-consumption-first design and an honest battery payback estimate for your home or business.

**Sources:** Profit by Pakistan Today — Leghari on storage, Arab News — challenge shifts to storage, The Express Tribune — NEPRA abolishes net metering

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.