Solar installation in State Life Housing, Lahore

The first thing a survey checks in State Life is not the roof

In a newer society the survey starts on the roof. In State Life Housing Society it starts at the distribution board, because that is where the surprises are. Phase 1 has houses that were wired in the mid-1990s and have not been touched since, sitting on the same street as a 2021 rebuild with a modern DB and proper earthing. The two need completely different scopes of work for the same 8 kW system.

What we look at, in order: the main breaker rating, the DB layout, whether there is a separate backup circuit or everything is on one bus, the cable feeding the AC points, and the earth. In roughly half the older houses here at least two of those five need attention before a hybrid inverter goes in.

This is not upselling. A hybrid inverter switching a whole house through an undersized main cable is a fire risk, and a LESCO net metering inspection will flag missing earthing anyway. Better to price it honestly at the quote stage than to hand over a variation bill halfway through the job.

What the electrical remediation typically costs

Work item	When it is needed	Typical cost (PKR)
New distribution board with MCBs and RCD	Old ceramic fuse or single-bus DB	28,000 to 45,000
Separate backup circuit for essential loads	Almost every hybrid install	18,000 to 35,000
Fresh earth pit with copper rod and salt bed	Corroded or missing earth	15,000 to 25,000
Replace aluminium feed to AC points	Pre-2005 wiring with aluminium runs	20,000 to 60,000
Main incoming cable upgrade	Load enhancement or 10 kW plus system	25,000 to 55,000

A well-maintained 2015-onwards house in Phase 2 might need none of this. A 1996 Phase 1 house running on its original wiring can need three of the five, which adds PKR 60,000 to PKR 100,000 on top of the solar quote. That is the honest range, and any installer who quotes an old State Life house without opening the DB is quoting blind.

Plot mix and matching system sizes

State Life spans 5-marla, 10-marla and 1-kanal plots, with a number of double-storey conversions where a second family lives upstairs on the same meter. That last case matters, because two households on one connection push consumption into the highest LESCO slabs fast.

House	Summer bill	System	Installed cost (PKR)
5 marla, single family, 1 AC	PKR 18,000 to 26,000	3 kW hybrid + 2.5 kWh	430,000 to 520,000
5 marla, double storey, 2 families	PKR 35,000 to 50,000	5 kW hybrid + 5 kWh	700,000 to 900,000
10 marla, 3 ACs	PKR 45,000 to 68,000	8 kW hybrid + 5 kWh	1,000,000 to 1,200,000
1 kanal, 4 to 5 ACs	PKR 80,000 to 120,000	10 kW hybrid + 10 kWh	1,400,000 to 2,200,000

Those figures assume standard mounting at PKR 7,000 per kW. Where a rooftop already carries a water tank platform and a solar geyser, raised mounting at PKR 12,000 per kW is often the only way to fit the array, which adds PKR 40,000 to PKR 60,000 on a mid-size build. Size checking is quickest through the calculator, and full component pricing sits in the 3 kW guide, 5 kW guide and 8 kW guide.

Replacing an ageing IPS with a hybrid inverter

A large share of State Life houses already run an IPS with two or four tubular batteries, installed during the heavy load-shedding years. Owners often ask whether the solar system can just feed that existing IPS. Technically some setups allow it. Practically it is the wrong build.

An IPS charges from the grid, which means it buys expensive units to store cheap comfort. A hybrid inverter charges from panels first, grid second, and does the same switching job faster. Putting solar behind an old IPS keeps the worst part of the old system and pays for the new one anyway.

The usual recommendation is to retire the IPS and fit a proper hybrid unit. A 5 kW hybrid at PKR 165,000 or a 6 kW at PKR 158,000 covers most State Life houses. Existing tubular batteries can sometimes carry over for a year or two if they are under three years old and have been watered properly, but the honest assessment on most is that they are already at 60 percent capacity. That comparison is set out in IPS versus solar battery, and the wider case is in the hybrid with battery guide and under hybrid and battery systems.

Roof condition on older State Life houses

Two roof issues come up here more than in newer societies.

• Tired waterproofing. Slabs that have been through twenty-five monsoons often have a patched, brittle membrane. Drilling anchor bolts through it without a proper sealant collar guarantees seepage. On badly weathered roofs the correct answer is ballasted or pedestal mounting with minimal penetrations, which costs a little more and prevents an argument the following July.
• Unauthorised extensions next door. Older societies accumulate rooftop rooms and raised tanks over decades. A neighbour's structure that went up in 2018 can put a permanent afternoon shadow across a roof that would otherwise be perfect. This has to be walked and measured, not assumed.

Roof loading is rarely a problem. A standard array adds roughly 15 to 20 kg per square metre, which any reinforced concrete slab in this society carries without complaint. What does need checking is the parapet, since older parapets are sometimes single brick and not suitable as a structure anchor point.

Net metering when the paperwork is old

State Life files hit one recurring obstacle: the meter is often still in the name of the original allottee, sometimes a parent or a previous owner from twenty years ago. LESCO will not process a net metering application against a name that does not match the applicant's CNIC and ownership documents.

Sorting that out at the sub-division takes anywhere from two weeks to two months depending on what documentation exists. Start it before ordering equipment, not after. Second recurring issue is sanctioned load. A house sanctioned at 5 kW in 1997 cannot legally run a 10 kW inverter under net metering without load enhancement, which is its own application.

Once those are clean, the sequence is standard: file submission, demand notice, inspection, bi-directional meter. Six to ten weeks. Our net metering service manages it, the current buyback position is in the 2026 changes, and the post-installation bill is explained in LESCO bill after solar. Households where the name issue cannot be resolved should read solar without net metering, since a hybrid plus battery build still delivers most of the saving.

The caveat worth stating plainly

Solar on an older house is a bigger project than solar on a new one. The panels and inverter cost the same, but the surrounding electrical work does not. A quote for a Phase 1 house that matches a quote for a new build in Bahria is usually a quote that has skipped the wiring.

The upside is that the remediation is worth doing regardless of solar. A modern DB with an RCD, a working earth, and separated circuits makes an old house safer, and it makes every future electrical job cheaper. Homeowners who resent that line item on the quote usually stop resenting it after the first time the RCD trips on a genuine fault.

Service coverage and related reading

Eleven years of installs across Lahore, office at Mohni Road, Mughalpura. Crews serving State Life also cover Model Town, Johar Town, Wapda Town, Gulberg and DHA. Nearby older societies with similar wiring profiles are covered in Faisal Town and Garden Town. Existing systems that misbehave are handled through repairs, and routine upkeep through installation and service. Anything specific can go via contact.