Ahmedabad's pharma, textile, and GIDC manufacturing units are switching to open access solar at record pace. Here is what you need to know about UGVCL rules, costs, and savings in 2026.
Ahmedabad is Gujarat's largest industrial cluster — home to GIDC estates at Vatva, Odhav, Naroda, Changodar, and Bavla, as well as a dense corridor of pharma manufacturers in the Sanand-Changodar belt. Most of these units are HT consumers on UGVCL (Uttar Gujarat Vij Company Limited), paying commercial tariffs of ₹7.00–₹8.50/unit in peak hours. Open access solar from a ground-mount plant in Kutch, Banaskantha, or North Gujarat can deliver contracted power at ₹4.00–₹5.00/unit — a saving of ₹2–₹3.50/unit on every unit consumed.
Gujarat's open access threshold under GERC regulations is 100 kW for HT consumers. Most industrial units in GIDC Vatva and Odhav well exceed this. The key eligibility checks are:
Pharma, chemicals, ceramics, and food processing units running two or three shifts are typically ideal candidates. Textile units in the Naroda cluster — many running 24×7 — see among the fastest payback periods in Gujarat.
| Charge | Rate (approx. 2026) | Notes |
|---|---|---|
| Wheeling charge | ₹0.55–₹0.70/unit | Paid to UGVCL for using their network |
| Cross-Subsidy Surcharge (CSS) | ₹0.60–₹0.90/unit | Gujarat has moderate CSS vs. Maharashtra/Tamil Nadu |
| Additional Surcharge (AS) | ₹0.10–₹0.20/unit | Applied in Gujarat; lower than many states |
| STU/SLDC charge | ₹0.05–₹0.10/unit | Scheduling and grid support fee |
| Banking charge | 5–8% of banked units | Applies if you bank surplus generation |
Net landed solar cost after all charges: typically ₹4.50–₹5.20/unit for an Ahmedabad consumer in 2026. Against a UGVCL HT tariff of ₹7.50–₹8.50/unit, the annual saving on a 500 kW load factor is ₹45–₹80 lakh per year.
Vatva and Odhav: Dense industrial layouts mean limited rooftop space. Open access from a remote site in Banaskantha or Patan is the typical solution. Both estates have 11 kV HT supply, which is sufficient for OA arrangements up to 5 MW.
Changodar and Bavla: This newer corridor has better feeder quality and lower technical losses. Several pharma units here have already moved to Group Captive arrangements with plants in Kutch, taking advantage of the CSS exemption under the Group Captive route.
Sanand: The Sanand industrial node (Tata Nano corridor, now diversified into EV and auto components) has access to PGVCL feeders in some pockets. Verify your DISCOM division before commencing the OA application.
Gujarat's CSS is moderate compared to Maharashtra or Tamil Nadu. For most Ahmedabad units, straightforward Open Access delivers a strong saving without the equity commitment of Group Captive. However, if you have a load above 1 MW and a peer-group of 3–5 neighbouring units willing to pool resources, Group Captive becomes competitive because it eliminates CSS entirely and offers a locked long-term tariff. See our full Group Captive vs Open Access comparison for a worked example.