Most solar quotes in Ahmedabad are a single number and a brand name. Here is exactly what sits inside ours - what each component does, what the per-kWp rate covers, what the government pays, and what your roof will actually generate.
How the price is built up
Residential rooftop quotations are priced per kilowatt-peak (kWp) of panel capacity. A 3.3 kWp plant is billed at ₹49,591 per kWp, which is why the gross figure lands at ₹1,63,650 before the fixed PPA charge and the subsidy.
Solar quotation line items and how each is calculated
Line item
How it is calculated
What it means for you
Design, supply, erection & commissioning of the grid-tie rooftop plant
₹49,591 per kWp (standard cable length, structure height up to 6 ft)
This single line covers panels, structure, inverter, ACDB/DCDB, earthing, cabling and labour.
Additional charges (PPA / agreement paperwork)
₹350, fixed
One-time charge for the power purchase agreement paperwork filed with the DISCOM.
DISCOM connectivity charges (net meter)
Extra, as actual
Charged by Torrent Power / MGVCL / UGVCL / PGVCL directly - we pass through the receipt without any markup.
Cabling beyond 30 metres
₹250 per additional metre
Only applies when the roof-to-meter run is longer than 30 metres; measured during the free site survey.
PM Surya Ghar subsidy
− ₹78,000 for 3 kW and above
Credited by the government straight to your bank account after net metering and DISCOM inspection.
3.3 kWp
6 Nos × Adani mono bifacial
Gross cost
₹1,64,000
Subsidy
− ₹78,000
You pay
₹86,000
3.85 kWp
7 Nos × Adani mono bifacial
Gross cost
₹1,88,800
Subsidy
− ₹78,000
You pay
₹1,10,800
4.4 kWp
8 Nos × Adani mono bifacial
Gross cost
₹2,14,500
Subsidy
− ₹78,000
You pay
₹1,36,500
What every component in the quote does
Two quotations for the same kilowatt rating can differ by ₹40,000 purely on these six items. Use this as a checklist when you compare us with anyone else.
Mono Bifacial solar modules (Adani, MNRE approved)
545–555 Watt DCR panels that generate from both faces - the rear side picks up light reflected off the roof.
Bifacial modules typically add 5–10% extra generation on a light-coloured Ahmedabad terrace, and DCR (domestically manufactured) cells are mandatory to qualify for the PM Surya Ghar subsidy.
Smart grid-tie inverter (UTL, IEC & BIS approved)
Converts DC from the panels into 230V AC for your home and pushes surplus units into the grid.
BIS/IEC approval is a DISCOM requirement for net metering, and the smart monitoring lets you see daily generation on your phone.
Module mounting structure (60x40 & 40x40 mm HDGI pipe)
Hot-dip galvanised iron framework, standard height up to 6 ft above the terrace.
Galvanising is what survives Gujarat's monsoon humidity and coastal salt air. Structures are designed for high wind speeds so panels stay put through pre-monsoon storms.
ACDB / DCDB protection boxes (L&T / Havells)
AC and DC distribution boxes with surge protection, fuses and isolators.
These are the safety devices that isolate the array during a fault, a lightning surge or maintenance work - never accept a system quoted without them.
Earthing system
Dedicated earth pits for the array frame and the inverter.
Proper earthing protects both people and equipment during a surge, and is inspected by the DISCOM before commissioning.
DC & AC cables (Polycab / Polyguard), 30 m included
UV-resistant solar DC cable from array to inverter, plus AC cable to your meter board.
Under-sized or non-UV cable is the most common cause of generation loss and roof fires in cheap installations.
Expected generation, savings and payback
Ahmedabad gets around 300 clear days a year, and a well-oriented rooftop here averages about 4 units per kWp per day over a full year. The figures below use that average and a residential slab of roughly ₹7.5 per unit including fixed charges - your own bill decides the exact number.
Estimated generation, annual savings and payback period by system size
System
Units / day
Units / month
Savings / year
Payback
3.3 kWp
≈ 13 units
≈ 396 units
≈ ₹36,135
≈ 2.4 years
3.85 kWp
≈ 15 units
≈ 462 units
≈ ₹42,158
≈ 2.6 years
4.4 kWp
≈ 18 units
≈ 528 units
≈ ₹48,180
≈ 2.8 years
Estimates, not guarantees. Actual output depends on shading, roof orientation, panel cleaning and your DISCOM tariff slab. With modules warranted for 30 years, everything after payback is effectively free electricity.
From quotation to subsidy credit
1
Free site survey
Day 1–2
Roof measurement, shadow check and meter distance - no cost, no obligation.
2
Fixed written quotation & booking
Day 2–3
₹20,000 advance (non-refundable) so your application can be registered on the national portal.
3
Portal application & DISCOM feasibility
Week 1–3
We file on the PM Surya Ghar portal and follow up with your DISCOM for technical feasibility approval.
4
Payment milestone & installation
Week 3–5
20% with the purchase order, balance after GEDA/GUVNL/MNRE approval. Installation itself takes 1–2 days.
5
Net meter & commissioning
Week 4–7
DISCOM installs the bi-directional meter and inspects the plant; generation starts the same day.
6
Subsidy credit
4–8 weeks after commissioning
₹78,000 credited by the government directly to your bank account.
Warranty written into the quotation
Warranty cover by component
Component
Cover
Module life
Not less than 30 years from installation date
Module output
Not less than 90% output at end of 10th year; not less than 80% output at end of 30th year
Inverter
10 years against manufacturing defects
Accessories
5 years against manufacturing defects
DISCOM connectivity/meter charges and solar meter charges are extra, billed as actual.
Cancellation of a registered application is non-refundable.
Documents you provide
Latest Electricity Bill
PAN Card
Cancelled Cheque
PM Surya Ghar Muft Bijli Yojana applications are filed by us on your behalf - you do not need to visit any government office.