Factory rooftop solar in Sanand GIDC.
Most Sanand GIDC units run machines through the day, and a shed-roof plant generates in exactly those hours. We study your UGVCL bills, check the purlins, design the array and file the licensee's papers. Modules come through our role as an authorised channel partner of Adani; inverters are Qbits. We work from Surat.
Book a Sanand GIDC load study
Send twelve months of UGVCL bills and your estate plot number. An engineer calls to fix a roof survey and tells you which drawings and lease papers to keep ready.
Prefer to talk? +91 63904 05060
The short answer
A factory in Sanand GIDC buys its grid power from UGVCL, not Torrent Power, so the rooftop solar application goes to the UGVCL sub-division on your bill. Every kilowatt on an unshaded shed yields 4 to 4.5 units a day, so 250 kW makes roughly 3.65 to 4.1 lakh units a year. Factories get no PM Surya Ghar subsidy; they claim 40% accelerated depreciation. Plants over 25 kW are priced after a load study.
Last reviewed 2 October 2026 · Heaven Green Energy engineering team
Sanand's GIDC estates and what that means for your roof
Sanand is GIDC's large estate west of Ahmedabad, built around automotive and engineering units. For a solar buyer the scale matters less than two things: your daytime load and the condition of your shed.
GIDC's land portal lists Sanand-II in Ahmedabad district as an unsaturated estate with 2,113 plots spread over roughly 2,443 hectares. As of October 2026 it shows 1,383 of those plots allotted and 730 still open, offered as industrial, commercial and utility plots. The portal's sector filter even carries a category called Sanand Multi National, alongside Auto Vendor, Engineering and Plastic Engineering. So you are in an estate that is still filling up, with new sheds going up beside working ones.
GIDC has also planned a Women Industrial Park of about 18.3 hectares inside Sanand-II. Its brief describes 199 small plots of 500 to 1,000 square metres on 99-year leases, aimed at micro and small enterprises run by women. Those owners face the same questions as any other plot holder, only on smaller roofs.
Electricity here comes from UGVCL. Ahmedabad addresses confuse people, because Torrent Power holds the licence inside Ahmedabad city. Sanand is outside that area, and UGVCL's own sub-division list names Sanand-1 and Sanand-2 offices. We do not claim any named estate company as a client. What we offer is a method for sizing a plant against your load, your roof and your sanctioned demand.
Machining and press shops on a day shift
CNC centres, presses and welding lines that run from morning to evening sit almost entirely inside the solar window. Most of what the array makes is used on the spot, so you rely less on export terms. This is the easiest load in the estate to match.
Moulding, extrusion and heating loads
Plastic moulding machines and heater bands draw a heavy, steady load once the barrel is up to temperature. If you run two or three shifts, solar covers only the daylight part. We size against your daytime units rather than the monthly total, so the plant is not oversized for the night shift.
Compressed air, cooling and paint lines
Compressors, chillers and paint-booth fans often peak in the hot afternoons from March to June, which is when your roof produces most. We log the compressor and cooling load at survey, because these motors frequently set your recorded maximum demand.
New sheds still being commissioned
Many Sanand-II plots are recent allotments, so your load may still be growing. We can design the plant in phases, with structure and cabling sized for a later extension, and file only what your present sanctioned load allows today.
Factory solar economics measured in units
We size a Sanand plant on the units you use in daylight, not on a promised rupee saving. Your tariff category, demand charges and shift pattern decide the money, and we only work that out from your own bills.
Daytime consumption sets the useful size. One kilowatt on an unshaded Sanand shed gives 4 to 4.5 units a day over the year. A 100 kW plant therefore yields around 1.46 to 1.64 lakh units annually, and 500 kW around 7.3 to 8.2 lakh. Compare those figures with what your meter records during working hours. Units you consume as they are generated are the most valuable units the plant makes.
Your sanctioned load caps the plant. UGVCL checks a rooftop request against the load or contract demand on your connection, so filling every square metre of roof is rarely possible. Solar also cuts units more than it cuts recorded peak demand, because a cloudy afternoon still sees the machines pull full power from the grid. If you expect to expand, a load enhancement may need to come first.
Tax replaces subsidy for a factory. PM Surya Ghar covers homes only. A profitable firm that owns the plant claims 40% accelerated depreciation on solar power generating systems under Appendix I of the Income Tax Rules. Since 22 Sep 2025, GST is 5% on solar equipment and 18% on the service portion, taken as 30% of a supply-and-install contract, so the blended rate is about 8.9%. As a reference point, a 25 kW plant in Gujarat sits in a market band of ₹10.75 lakh to ₹13.50 lakh, or about ₹43,000 to ₹54,000 per kW. Anything bigger is priced only after a load study, since structure, cable length and metering change the figure.
| Plant size | Units a year |
|---|---|
| 25 kW | 36,500 – 41,063 |
| 50 kW | 73,000 – 82,125 |
| 100 kW | 1,46,000 – 1,64,250 |
| 250 kW | 3,65,000 – 4,10,625 |
| 500 kW | 7,30,000 – 8,21,250 |
Indicative installed cost at 25 kW: ₹10.75–13.50 lakh (market range, not a quotation). Larger plants are priced after a load study of your bills and roof.
This is what we actually build.
Heaven Green Energy installations across India. Not stock photography, and not renders.
Engineering checks on a Sanand-II shed
We confirm the roof can carry the plant before we draw a single panel. Then we design for wind and maintenance access, and finally for a clean, documented connection to your switchgear.
Sheets, purlins and the added load
Pre-engineered sheds in a new estate are usually designed close to their limit. We record purlin size, spacing and gauge, the sheet profile and any corrosion, then calculate the extra dead load. If the structure falls short, you hear it before signing, together with the strengthening or lighter layout we would propose.
Wind uplift, leaks and safe access
Rails are fixed into the purlins, not just the sheet, and every penetration is sealed against monsoon leaks. We keep walkways for cleaning, leave skylights and ridge vents clear, and bond the structure to earth. Lightning protection is laid out for your roof height and the array footprint.
Inverter placement and the UGVCL interface
Qbits inverters go close to the main LT panel to keep AC cable runs short. The design adds DC and AC isolation, surge protection, earth pits and the meter arrangement UGVCL asks for. On an HT connection, the plant ties in on the LT side of your transformer, and the drawings show it.
Approvals: who does what.
UGVCL must approve the plant before it is energised. We prepare the whole file, keep the drawings matched to what is built, and attend the inspection with you.
Bill review, roof survey and SLD
We read twelve months of bills, your sanctioned load and connection type, then survey the shed. The output is a plant rating, a layout and a single-line diagram that UGVCL will review.
UsApplication to the Sanand sub-division
We file with your consumer number, plant rating, diagram and equipment datasheets. UGVCL checks the request against your sanctioned load and the feeder, then approves it or asks for changes.
Us, then UGVCLInstallation and safety documents
We build to the approved design and compile earthing results, test reports and protection settings. Where your plant size needs Electrical Inspectorate clearance, we prepare and follow up that file as well.
UsInspection, meters and switch-on
UGVCL inspects the plant and fits or certifies the metering. Generation starts showing on your bill once the plant is energised. Our engineer attends so any query is closed on the day.
UGVCLThree ways to fund the plant.
You have three ways to fund a plant. The right one depends on your tax position and on whether you want the asset on your books.
Buy it with your own capital
The firm owns the plant and claims 40% accelerated depreciation from the year it is first put to use. This suits a taxpaying unit with spare cash or credit. You keep every unit generated, and our AMC covers inspections, cleaning plans and inverter health.
Term loan or equipment finance
Banks and NBFCs lend to MSMEs against solar plants, and you remain the owner for depreciation. We supply the quotation, bill of materials and generation estimate lenders want. The lender fixes rate and tenure, so compare the full cost of each offer before choosing.
Third-party ownership (RESCO)
A developer owns the plant on your roof and bills you for the units it supplies. You spend no capital and claim no depreciation. Check the tenure, buy-out clause and roof-access terms carefully, and confirm your GIDC lease allows the arrangement before you sign.
How the project runs.
From first call to commissioning, a Sanand GIDC project follows five stages. Durations depend on plant size and UGVCL's queue.
Where we work from
Heaven Green Energy's only office is at Mota Varachha, Surat. We have no branch in Sanand or Ahmedabad. Sanand GIDC projects are run by our field engineering team, who travel from Surat for surveys, installation supervision and UGVCL inspections, supported by our channel partner network. We say this before you sign, not after.
Bills and load study · Week 1
You share bills and shift timings. We map daytime consumption against expected generation and agree a size range with you before anyone climbs the roof.
Roof survey · Week 1 to 2
Our engineer travels from Surat to measure purlins, sheet condition, shade from vents and the cable route to your main panel.
Design and quotation · Week 2 to 3
You get the layout, single-line diagram, generation estimate in units and a firm price. Nothing is ordered until you approve the design.
UGVCL approval · Depends on queue
We file with the Sanand sub-division on your bill and answer its queries. Material is staged so installation starts soon after approval.
Build and commissioning · Plant-size dependent
We install around your shifts, test, attend UGVCL's inspection and hand over monitoring access. The AMC starts from commissioning.
What businesses say after a year.
These reviews are from industrial and commercial customers in Bharuch, Surat and Anand. None is from Sanand GIDC, and each is shown with the city where the plant was built.
250 kW industrial system on our chemical plant. Generation has been 8% above estimate every month. Their O&M team is responsive.
Industrial · Bharuch · 250 kW
150 kW at our textile factory dropped power costs by 68%. The ROI calculation they provided was spot-on, break-even under 4 years.
Commercial · Surat · 150 kW
80 kW on our hospital rooftop. Diesel backup running time cut by 60%. Heaven Green's structural design cleared all wind-load checks first time.
Commercial · Anand · 80 kW
Six things to check with any vendor.
- Sanand GIDC is UGVCL territory, not Torrent Power, so your file goes to the Sanand sub-division on your bill.
- Each kilowatt on an unshaded shed gives 4 to 4.5 units a day; 250 kW makes about 3.65 to 4.1 lakh units a year.
- Your sanctioned load limits plant size, so a load enhancement may come before a large plant.
- Factories get no PM Surya Ghar money; the tax benefit is 40% accelerated depreciation.
- GST on a turnkey plant is about 8.9% blended since 22 Sep 2025.
- Plants above 25 kW are priced after a load study and roof survey, never off a web page.
Industrial solar in Sanand GIDC, answered.
Cost & output
What does a factory plant in Sanand GIDC cost?
How many units will a 100 kW plant make in Sanand?
Why will you not tell me my saving upfront?
Licensee & approvals
Is Sanand GIDC supplied by Torrent Power or UGVCL?
How does UGVCL net metering work for an industrial unit?
Do I need GIDC's permission to put solar on my shed?
Roof & engineering
Can a new pre-engineered shed carry a solar plant?
How much roof does a 100 kW plant need?
Will installation interrupt production?
Finance & tax
Can my Sanand unit claim accelerated depreciation?
What GST will my factory plant carry?
About Heaven Green