Solar system for a mosque in Lahore

Five spikes, not a curve

Every other building in this city has a load shape. A house ramps up at night. A shop is flat through the day. A mosque has neither. It has five short, sharp spikes and long quiet gaps in between.

Fajr is before sunrise, and in December that means around 5:30 am with zero solar generation available. Zuhr and Asr land in full sun. Maghrib sits right at the moment the panels stop. Isha is fully after dark. Friday adds one very large spike where a mosque that normally holds 40 people holds 400.

That shape decides the design. A mosque cannot be sized like an office, because two of its five daily peaks fall outside daylight and one of them, Fajr in winter, is the least convenient hour of the year for solar. It also cannot be sized like a house, because the daytime consumption in summer is real and heavy.

What a Lahore mosque actually runs

Walk the load with the committee before quoting. In a typical neighbourhood masjid in Mughalpura, Samanabad or Township, the list is:

• 20 to 40 ceiling fans at 75 to 110 watts each, running from March through October. This is the single biggest load, often 3 kW on its own during a summer Zuhr.
• Tube lights and minaret lights, roughly 800 to 1,500 watts, with the outside lights running from Maghrib to Fajr.
• Amplifier and loudspeakers, 300 to 600 watts in use, plus a mic mixer that stays powered continuously.
• Water pump for wuzu tanks and overhead storage, 0.75 to 1.5 hp, running in short bursts.
• An electric water heater or geyser for winter wuzu, often 1,500 to 2,000 watts and frequently the reason a January bill is a shock.
• Air conditioning in the main hall if there is one, one to four 1.5-ton units, usually only for Friday and Ramadan.
• Madrassa rooms, if attached, with their own fans, lights and sometimes a small kitchen.

Do not size on the Friday peak alone. A system built to cover four ACs and 400 people for one hour a week will sit idle six days out of seven. Size to the weekday load, keep the grid for Friday, and let net metering absorb the difference.

Three build levels donors actually fund

Mosque projects are funded in chunks: a few large donors, a collection announcement after Jummah, sometimes a single family covering the whole thing as sadaqah jariyah. That funding pattern rewards a design that can be built in stages.

Build	Panels	Inverter	Battery	Covers	Cost
Stage 1, essential	6 x 585W (3.5 kW)	3kW hybrid, PKR 95,000	2.5 kWh lithium	Fans, lights, sound system	PKR 540,000 - 590,000
Stage 2, full masjid	10 x 585W (5.85 kW)	5kW hybrid, PKR 165,000	5 kWh lithium	Above plus pump and one AC	PKR 820,000 - 900,000
Jamia masjid	17 x 645W (11 kW)	10kW hybrid, PKR 295,000	Two 5 kWh lithium	Hall ACs, madrassa, full site	PKR 1,500,000 - 1,800,000
Budget variant	6 x 585W (3.5 kW)	3kW hybrid, PKR 95,000	2 x 200Ah tubular	Fans, lights, sound only	PKR 460,000 - 510,000

Rates behind those numbers: Tier-1 585W panel PKR 19,500, 645W bifacial PKR 21,000, 2.5kWh lithium PKR 130,000 to 145,000, Pylontech 3.5kWh PKR 195,000, 5kWh lithium PKR 285,000, tubular 200Ah PKR 48,000 to 52,000 each, mounting PKR 7,000 per kW, electrical items kit PKR 35,000, wiring PKR 25,000, labour PKR 20,000, net metering paperwork PKR 15,000.

The staged approach works well here. Install the full panel array and hybrid inverter in stage one, leave the battery for later. The system saves money from day one, and the storage can be added the following year when funds allow, without rewiring anything.

Fajr and Isha decide the battery, not the bill

For a shop or an office, storage is optional. For a mosque it is close to mandatory, and for a reason that has nothing to do with saving money.

The azan has to happen. If LESCO trips at 5:20 am in January, the loudspeaker still needs power. So does the light in the hall, so does at least one fan in July when 60 people are standing shoulder to shoulder for Isha.

Minimum practical storage: 2.5 kWh of lithium at PKR 130,000 to 145,000. That runs the amplifier, the hall lights and eight to ten fans for two to three hours. Enough for Fajr, Maghrib and Isha with a margin. Stepping up to 5 kWh at PKR 285,000 adds the pump and a longer runtime in Ramadan, when Taraweeh keeps the mosque busy late.

Tubular is a legitimate budget choice for a mosque, more so than for a home, because a mosque usually has a store room or a covered corner with real ventilation and a caretaker who can top up water. Two 200Ah tubular units cost around PKR 100,000 against PKR 285,000 for 5 kWh of lithium. The honest trade: tubular needs replacing in four to five years and the committee will be raising money again. Compare properly in lithium versus tubular batteries, with prices in tubular battery pricing and lithium battery pricing.

Sizing method for the bank is the same as any building, laid out in battery bank sizing for Lahore. Design support is on hybrid and battery. For mosques in areas with heavy load shedding, battery backup for load shedding covers the runtime math.

Net metering, and whose name it is in

A mosque can get LESCO net metering. Whether it should is a separate question.

The connection must be in the name of the mosque, its trust, or the registered committee, with sanctioned load at least equal to the inverter capacity. Many older Lahore mosques still run on a connection registered to a founder who died two decades ago, or on a domestic tariff meter from a neighbouring property. Sorting that out at the LESCO subdivision comes before anything else, and it can take longer than the installation itself.

Mosques under Auqaf administration need departmental permission on top of the LESCO process. Independent trust mosques are faster. Either way, apply early, since six to ten weeks between commissioning and net meter installation is normal. Details in net metering changes for 2026, handling on net metering service.

Where the meter situation is unresolvable, a hybrid system with export blocked still works. The mosque self-consumes what it generates and keeps the backup benefit. That path is covered in solar without net metering, and the pure grid-tied alternative on on-grid solar.

Where donation-funded builds go wrong

This is the part that needs saying plainly, because mosque committees get taken advantage of more than any other customer type in Lahore.

1. Donated panels of unknown origin. A donor turns up with 12 used panels from a dismantled system. Half are B-grade, two have micro-cracks, and none have a warranty. Mixing panel models in one string drags the whole string down to the weakest module. If donated panels are used, they need to be on their own MPPT input and tested individually first.
2. Buying the cheapest inverter available. The mosque runs a sound system. A cheap inverter with poor waveform quality puts an audible hum through the amplifier during backup. Fixing that later costs more than buying properly.
3. No nominated caretaker. A home system has an owner watching the app. A mosque system has nobody, and a failed string can go unnoticed for a year. Name one person on the committee, put the monitoring app on their phone, and write the installer's number on the inverter itself.
4. Building for Friday. Oversizing to cover the Jummah peak wastes donated money six days a week.
5. Skipping the survey to save PKR 3,000. Minaret and dome shadows are the reason more than one mosque array in this city produces 30 percent less than promised. The survey fee is adjusted in the final installation bill anyway.

Shade, dust and the Lahore mosque roof

Minaret and dome shadows

A mosque roof is not a flat rectangle. There is a dome, usually central, and one or two minarets that can be 40 feet tall. A minaret casts a moving shadow across a large part of the roof through the winter afternoon, exactly when generation is already weakest. Panels must be laid out around that path, which sometimes means using the madrassa block roof or an elevated frame over the courtyard at PKR 12,000 per kW instead.

Pigeons

Old mosques in Lahore have pigeons, and pigeons sit under panels. Droppings on the underside of a bifacial module cut its rear gain to nothing, and nests under the array become a fire risk near DC connectors. Mesh skirting around the array perimeter costs about PKR 15,000 and is worth every rupee.

Smog and cleaning

Winter output in Lahore drops 25 to 35 percent from smog and short days, as covered in winter solar output. Panels near a busy road need monthly washing through those months. A mosque already has a wuzu water supply and a caretaker on site, so the marginal cost is small. Professional cleaning rates are in solar cleaning cost and the service on panel cleaning. Fault work goes through repair, with typical charges in solar repair cost in Lahore.

What the savings actually look like

A neighbourhood mosque near Baghbanpura, 32 fans, 22 tube lights, a 1 hp pump, a sound system and one geyser, no ACs. Average LESCO consumption 780 units a month, summer peak 1,150. Average bill across the year around PKR 42,000.

Installed: 5.85 kW of panels, a 5kW hybrid inverter and a single 5 kWh lithium bank, standard mounting on the madrassa block roof to avoid the minaret shadow. Total PKR 865,000, funded by two donors and a Jummah collection over four months.

Post-installation bills settled between PKR 6,000 and PKR 14,000 depending on the season. Annual saving is roughly PKR 380,000, so the system pays back in about 27 months and then keeps returning for two decades. The battery contributes nothing to that payback figure, and it should not be counted in it. It was bought so that the azan never stops, which is a different kind of value.

Broader cost context is in solar installation cost in Lahore 2026, and the residential equivalents in 5kW pricing and 3kW pricing. Mosques across Johar Town, Model Town, Wapda Town, Bahria Town, Gulberg and DHA are served, along with the older quarters around Mughalpura where the office sits. Rough sizing can be done on the calculator, and enquiries through contact or the installation page.