Solar Panel Installation in Kundrathur
Sized against your bill, because credit you never use is settled below retail
On the larger plots around Kundrathur it is tempting to install as much as the roof allows. Before doing that, it is worth understanding what happens to the credit you build up but never use, because that is where oversized systems quietly lose money.
Installing across Chennai since 2020
Two years free maintenance included
Subsidy and TANGEDCO paperwork filed by us
Free site survey and energy audit, no obligation
The short answer
Looking for a solar panel installation company in Kundrathur?
Kundrathur is mostly independent houses with their own terraces, which is the simplest case for rooftop solar: one owner, one roof, one connection. Out at the area there is often land as well as roof, which opens up options a city terrace does not have. Installing across Chennai since 2020, we file the PM Surya Ghar application worth up to ₹78,000 for households, handle TANGEDCO net metering end to end, and cover two years of maintenance after commissioning. Before the survey, you can check the solar panel price in Chennai for 3 kW to 10 kW systems and see how our solar panel installation in Chennai works, the same process we follow in Kundrathur.
What it costs here
A typical 5 kW system in Kundrathur
Standard 5 kW example
What a typical 5 kW home system does here. Your own figures come from the survey.
Not sure what your site can carry?
Send us your last electricity bill on WhatsApp and we will come back with an indicative system size and what it would offset. No visit needed for that first answer.
The local picture
What happens to credit you never use
Under net metering, units you export are credited against units you import within the billing cycle, and surplus credit carries forward to the next cycle. On 31 March, any credit still unused lapses unpaid. That is why a system generating substantially more than a household consumes returns less per kilowatt than a smaller one.
How it works through the year
Bi-monthly cycles
TANGEDCO reads domestic meters bi-monthly, and within each cycle exports offset imports directly.
Surplus carries forward
If you exported more than you imported in a cycle, the balance becomes credit toward the next.
Seasonal balancing is the point
A well-sized system builds credit through the clear bright months and draws it down through the northeast monsoon when generation dips. Across a year the two roughly cancel.
Credit left on 31 March lapses
Credit that survives the whole year is paid at the regulator’s rate, which sits below retail.
What that means for sizing
A system matched to your consumption uses its credit at full retail value
A system generating well beyond your consumption accumulates credit that cannot be used and lapses unpaid on 31 March, so the extra capacity earns nothing for its surplus. Two other ceilings apply: the PM Surya Ghar subsidy stops rising at 3 kW, and above 10 kW a domestic consumer loses the subsidy and needs CEIG approval and a generation meter.
So the question is your bill, not your terrace
We size from twelve months of consumption
And will tell you plainly when the roof could take more than you should install. Practically, larger plots here support 4 kW to 6 kW for most households, elevated structures are genuinely workable, and three-phase is required above 4,000 watts of connected load.
Areas we cover around Kundrathur: Kundrathur, Mangadu approach, Somangalam, Gerugambakkam border, Porur side, the layout sectors.
All areas we cover in Kanchipuram →Residential
Solar for Kundrathur homes
Independent houses on larger plots
Typically install 4 kW to 6 kW, sized to consumption rather than roof area.
Elevated structures
Suit the bigger terraces where the space is used.
Layouts and new developments
Benefit from planning generation and lighting in before completion.
Three-phase conversion
Common, and filed alongside the net metering application.
Commercial and industrial
Solar for Kundrathur businesses
Light industry and workshops
On the approaches. Sheet roofs and commercial tariffs.
Retail and showrooms
On the main roads. Evening-weighted and usually leased.
Schools and institutions
Strong term-time daytime match.
Warehousing
Where roof area often exceeds what the load justifies.
Local guide
Kundrathur solar notes: main road meters, megalithic ground and yield
Kundrathur became a municipality on 1 November 2021 and was raised to Special Grade in 2025, and State Highway 113A, the Pallavaram to Poonamallee road, runs straight through it. The town is the birthplace of the poet saint Sekkizhar.
SH 113A buildings with a shop meter and a house meter
The Pallavaram to Kundrathur to Poonamallee road, also called Pammal Main Road, is a 13 km state highway across three districts, and Kundrathur's main frontage sits on it. Where a building here has a shop or workshop on one connection and a home on another, the choice of meter changes the economics. On the domestic connection, the system gets the subsidy and one-for-one net metering up to the sanctioned load. On the commercial connection, there is no subsidy and exports go on net feed-in at ₹3.61 a unit up to 10 kW and ₹3.37 from 11 to 150 kW, but every unit used on site displaces a higher tariff. We model both meters before recommending one. Sometimes the answer is two systems, one per meter.
Ground arrays on megalithic ground: check before digging
Kundrathur is one of 163 notified megalithic sites in Tamil Nadu. Some properties here have open land beside the house, and a ground-mounted array needs foundations dug into that land. If your plot falls within or close to the notified area, digging may need clearance first. So before quoting a ground array, we ask you to confirm the plot's status with the revenue records or the State Department of Archaeology, and we use shallow ballasted footings where the ground allows. A roof array avoids the question entirely, and the PM Surya Ghar subsidy is designed for rooftop systems, so the roof stays our first choice. Ballasted footings also make the array easier to move if the land is built on later.
Kancheepuram district yield, worked for larger homes
The state rooftop calculator gives Kancheepuram district 1,600 units per kW a year, about 4.4 units a day. A 4 kW system makes about 6,400 units a year, the most a single-phase connection can take. A 5 kW system makes about 8,000 units and a 6 kW system about 9,600, both needing three-phase supply. A 5 kW system costs about ₹3,20,000 before subsidy and about ₹2,20,000 after the ₹78,000 central subsidy and the ₹22,000 Tamil Nadu top-up. Homes up to 10 kW pay a network charge of about ₹0.32 a unit on generation, so 8,000 units carry roughly ₹2,560 a year. Larger plots here can take these sizes, but we size to twelve months of bills, not to the roof.
What we install
What we install in Kundrathur
The process
How installation works
Free site survey
Shade-free roof area measured across the day, structure checked, connection name and sanctioned load confirmed.
Design and itemised quotation
Sized against twelve months of consumption, with every component named.
Approvals filed
PM Surya Ghar and TANGEDCO net metering, plus load enhancement or phase conversion in parallel where needed.
Installation
One to three days for a residential system, carried out by our own team rather than subcontracted.
Inspection and commissioning
TANGEDCO inspects, the net meter goes in, the system goes live.
Subsidy tracked to your account
And two years of maintenance included from commissioning.
We check the name on your electricity connection at the survey, because a mismatch stops more applications than any technical issue. See what to keep ready.
Free, no obligation
What will it cost on your roof in Kundrathur?
Big roof and tempted to fill it?
Credit left over on 31 March lapses unpaid, so capacity beyond your consumption earns nothing.
What happens after you send your details
- We call you within one working day, and an engineer rather than a salesperson attends the site.
- The survey is free. We measure usable area and shading, check your connection and sanctioned load, and photograph the site.
- You get an itemised quotation naming every component and brand, with the subsidy or depreciation position set out.
- No obligation at any point. If solar does not make sense for your property, we will say so.
Common questions
Solar in Kundrathur, common questions
What happens to solar credit I do not use?
It carries forward from one bi-monthly cycle to the next, and whatever remains on 31 March lapses unpaid. That is why capacity generating well beyond your consumption returns less per kilowatt than the earlier part of the system.
Should I install as much as my roof allows?
Usually not. A system matched to your annual consumption uses its credit against your own imports at full retail value. Beyond that, credit accumulates unused and settles at a discount. The subsidy also stops rising at 3 kW, and above 10 kW a household loses it entirely and needs CEIG approval and a generation meter.
Why does a well-sized system still export in some months?
Because generation peaks in the clear bright months and dips through the northeast monsoon, while consumption follows its own pattern. A well-sized system builds credit through the strong months and draws it down through the weak ones, so the two roughly cancel across the year. That is net metering working as intended.
How long does installation take in Kundrathur?
Six to ten weeks, though section offices covering Kundrathur can run longer than the city ones at busy times. The installation is one to three days for a home; approval and the bi-directional meter account for the rest.
Do you handle the subsidy and TANGEDCO paperwork?
Yes. We file both the PM Surya Ghar application and the TANGEDCO net metering application, and follow them through the section office covering Kundrathur. Timelines at the outer offices vary more than in the city, so we tell you what we are seeing there rather than quoting a standard figure.
What is included after installation?
Two years of free maintenance from commissioning, covering panel cleaning, annual inspection of connections and structure, generation monitoring and warranty coordination with the manufacturer.
Our building on Kundrathur main road has a shop meter and a house meter. Which one should solar go on?
It depends on where the daytime load sits. On the house meter you get the subsidy and net metering; on the shop meter you get no subsidy but each unit used on site replaces a higher commercial tariff, while exports earn only ₹3.61 or ₹3.37 a unit. We work out both before recommending one.
We have open land beside our Kundrathur house. Can the panels go on the ground instead of the roof?
Technically yes, but check two things first. Kundrathur is a notified megalithic site, so confirm the plot's status before any digging, and the PM Surya Ghar subsidy is designed for rooftop systems. In most cases the roof is the simpler and cheaper route.
Long tail coverage
Areas we cover around Kundrathur
Not listed? We survey across Chennai and the surrounding districts. Call and we will tell you straight away whether we can reach your site this week.