Name: Altus Solar
Address: 8/12 1st Street, Arun Nagar 3rd Cross Road, Coimbatore, Tamil Nadu, 641046, IN
Telephone: +91 94430 60996
Rating: 5

Question 1

How much can my factory save?

Accepted Answer

It depends on your tariff and on how much you use in daylight. Plan my solar works it out from your monthly units and contracted demand, with your HT or LT tariff. Ground and industrial plants typically pay back in 3 to 4 years, commercial rooftops in 3 to 5, and the plant then runs for 25.

Question 2

What is P90, and what do you guarantee?

Accepted Answer

P90 is the yearly output a plant should beat nine years in ten. Every Altus offer states the units at P90; if a year falls more than 5% short, we inspect the plant and put the cause right at our cost. It is a promise to fix, not a cash refund. Workmanship carries a 25-year warranty, and panels and inverters carry their makers’ warranties.

Question 3

Do I need DG synchronisation?

Accepted Answer

Yes, if you run a diesel generator when the grid fails. Without it, solar can push power back into the generator or leave it running too lightly, which harms it. A DG sync controller watches the generator and holds solar back so it never feeds it. One controller serves the whole site, however many generators it has.

Question 4

Can my business claim depreciation?

Accepted Answer

Most can: 40% a year on the written-down value of the plant. Our offers show payback before tax and after tax, with the savings and upkeep taxed at 25% and the depreciation shield added, so you see both figures.

Question 5

What if my roof isn’t big enough?

Accepted Answer

We fill the roofs you have first, sized to your daytime use. For the units your roofs can’t make, we also build open-access plants on land, with the approvals, so the power reaches your factory through the grid.

Question 6

What is open-access solar?

Accepted Answer

A plant built on land away from your factory, whose power reaches you through the grid. It suits large loads that no roof can cover. Altus designs the plant, builds its line to the substation and manages the approvals; wheeling and banking charges apply and are counted in the offer.

Question 7

How much roof space do I need?

Accepted Answer

About 6 m² (63 sq ft) of shade-free roof for every kWp on a flat terrace or tiled roof, and about 5 m² (55 sq ft) on a metal-sheet roof. A 5 kW home needs about 30 m² (320 sq ft). Ground plants take about 2.5 acres per MWp. Walkways and the parapet’s winter shadow need room too, so we measure the roof before fixing the size.

Question 8

How long does it take?

Accepted Answer

A home is switched on in 3 to 5 weeks and a business plant in 5 to 8, counted from your first call. Only 3 to 4 days of that are on a home’s roof, and 3 to 5 weeks on a plant’s; the rest is materials and the utility’s approvals, which we file the day you approve the design.

Question 9

What happens on cloudy days and in the monsoon?

Accepted Answer

The plant keeps making power from the light that gets through, just less of it. In our Pollachi example the dullest month, November, makes about three-quarters of what March makes. The yearly units in your offer already count every month, and the P90 figure allows for a poor year.

Question 10

Will the panels damage my roof?

Accepted Answer

On a metal-sheet roof the rails are bonded to the sheet, so nothing is drilled through it, and we lay a walkway so nobody steps on the sheets. On a terrace the frame sits on foundations and weighs about 21 kg per kWp. Every fixing is on the drawing you approve.

Question 11

How long do solar panels last?

Accepted Answer

The plant is designed for 25 years. Our offers count a 1% loss in the second year and 0.4% a year after that, so a 25-year-old plant still makes about 90% of what it made in its first year. Panels and inverters carry their makers’ warranties, and our workmanship warranty runs the full 25 years.

Question 12

What maintenance does a solar plant need?

Accepted Answer

Little: the panels are cleaned in the dry months, and the monitoring tells us the moment output drops. Our payback figures set aside 1% of the price a year for homes and 1.25% for plants towards upkeep, and allow for an inverter replacement around year 13.

Question 13

Which approvals are needed, and who files them?

Accepted Answer

We do. Homes need TNPDCL’s net metering and businesses up to 999 kW its net feed-in; larger HT plants run alongside the grid with a reverse power relay and export nothing. Plants above 10 kW also need CEIG approval. We file the day your design is approved, since permits are the only stage outside our control.

From rooftopto megawatt.

Eight questions to ask any installer, and our answers.

Your units in, your saving out.

Our own design software, from your bill to the build.

Switched on in 5 to 8 weeks, with 3 to 5 of them building on your roof.

Every unit guaranteed, in writing.

Mills, hospitals, campuses and homes.

2.5 MW on the ground for Sri Ramakrishna Mills

On our sites

On our sites

Rated and written about.

Confab Pumps since 1984. Altus Solar from 2026.

What people ask us

Send us your EB bill. We’ll send you a design.