A commercial solar EPC company in Hyderabad designs your solar plant, buys the equipment, builds it and hands over a working, grid-connected system. EPC stands for engineering, procurement and construction. One firm is accountable for all three.
A good EPC partner also handles DISCOM paperwork and safety approvals, and stays on for maintenance. A weak one sells panels and leaves the approvals to you.
Here is what to check before you sign.
What an EPC company actually does
| Stage | What happens | What to ask |
| Engineering | Site survey, shadow study, load analysis, layout, electrical design | Will an engineer visit the roof before quoting? |
| Procurement | Modules, inverters, structures, cables, protection gear | Does the quote name the make and model of each item? |
| Construction | Installation, testing, approvals, commissioning | Who files the net metering application and arranges inspections? |
Many quotes are really supply-and-install offers. Without proper engineering, you pay for it later in the lost generation.
Why Hyderabad businesses suit solar
Most factories, hospitals, colleges and offices here use the bulk of their power between morning and early evening. That is when panels produce. The match between your load and the sun’s output matters more than any headline number.
A common planning figure for Hyderabad is about 4 units per kW per day. Real output depends on tilt, shading, dust, inverter losses and design quality, so ask any EPC for a generation simulation rather than relying on a rule of thumb.
If you’re considering commercial solar installation in Hyderabad, start with your electricity bills. Gather 12 months of units consumed, your sanctioned load or contract demand, and your tariff category. Every sound proposal starts from those numbers.
How Telangana’s rooftop rules work
Rules and limits are set by the state regulator (TGERC) and applied by your distribution company (TGSPDCL for most of Hyderabad). They change from time to time, so use this section to understand the structure and confirm the current figures on their websites.
Four things shape your project:
- Metering model. Net metering credits exported units against your consumption. Gross metering sells all generations to the DISCOM. Group and virtual models exist for specific consumer types.
- Capacity limit. Your allowed solar capacity is linked to your sanctioned load or contract demand, and commercial and industrial consumers usually get a lower ratio than residential ones.
- Transformer limit. The DISCOM caps total rooftop capacity connected to a transformer or feeder, so a nearby installation can affect what you’re allowed.
- Metering and inspection. Smart or bi-directional meters are needed, and larger systems need a safety inspection before connection.
Ask your EPC to show you the current regulation clause behind every limit they quote. That one request filters out a lot of vendors.
Sizing a system: a worked example
Take a 100 kWp rooftop plant.
- Roof area: TGSPDCL’s guidance puts 1 kW at roughly 10 sq m, so you need about 1,000 sq m of usable, shadow-free roof.
- Daily generation: 100 kWp x 4 units = about 400 units a day.
- Yearly generation: about 1.46 lakh units.
These are planning numbers, not guarantees. Your real design will land higher or lower.
Whether you’re allowed 100 kWp depends on your sanctioned load and the current capacity rules above.
Roof strength is the other check. A TERI study for GHMC buildings noted that rooftop solar typically adds 15 to 20 kg per sq m of load. Old RCC slabs and metal sheet roofs need a structural assessment before anyone drills a hole.
How a commercial rooftop installation runs
For commercial rooftop solar installation in Hyderabad, the usual sequence is:
- Bill analysis and site survey
- Shadow analysis and structural check
- System design and generation estimate
- Net metering application and DISCOM approval
- Material delivery and installation
- Safety inspection where required, then meter installation
- Commissioning, monitoring setup and handover
Paperwork usually takes longer than the physical installation. An EPC that has dealt with the DISCOM many times will save you weeks.
The process is similar for industrial and commercial solar installation, but industrial sites add HT connections, transformer limits and sometimes a rooftop versus ground-mount decision.
How to compare solar EPC companies in Hyderabad
Price per watt is the least useful way to compare solar EPC companies in Hyderabad. Two quotes at the same rate can deliver very different plants. Ask for:
- A named bill of materials: module make and wattage, inverter model, structure material and thickness, cable size.
- Approved-list status: whether the modules meet MNRE’s current requirements. Your lender or DISCOM may ask for it.
- A performance estimate: expected annual units and the assumptions behind it.
- Warranty terms: modules, inverters and workmanship, in writing.
- Approvals scope: who handles the DISCOM application, inspection and meter.
- O&M terms: cleaning schedule, monitoring and response time.
- References you can visit: a running plant of similar size, ideally a few years old.
If a vendor won’t name the equipment, that tells you something.
Tax and finance: what to ask your accountant
Businesses that own a solar plant may be able to claim accelerated depreciation and may be able to claim GST input credit. Both depend on ownership structure, profitability, and the tax rules in force when you commission the plant, and both have changed over the years.
Don’t build your payback calculation on a figure from a blog post, including this one. Ask your chartered accountant for the current treatment and put that number in the model.
There are two common structures. You can buy the plant (CAPEX), or you can pay per unit under a third-party arrangement (OPEX). Tax benefits generally go to the asset owner, so the structure affects your returns.
Mistakes we see in proposals
- Sizing to the roof instead of the load. A plant larger than daytime demand exports surplus at a much lower value than the bill units it could have replaced.
- Ignoring shading. A water tank or parapet shadow at 4 pm can quietly cut output on a string.
- Skipping the structural check on older sheds.
- No monitoring. Without it, a failed string can go unnoticed for months.
- Comparing only the total price, while the bill of materials differs line by line.
Conclusion
Choose the EPC company that engineers your project properly, not the one with the lowest rate per watt. Ask for a named equipment list, a generation estimate you can check, and a clear statement of who handles approvals.
Hydromo works with businesses across Hyderabad and Telangana on solar alongside water and wastewater systems. Request a site assessment and send us your last 12 electricity bills. We’ll tell you what size makes sense for your roof and load.
FAQs
1. What is a commercial solar EPC company?
Ans. It’s a company that takes responsibility for design, equipment supply, installation and commissioning of a solar plant, so you deal with one contractor rather than several.
2. How much roof space does a commercial solar plant need?
Ans. TGSPDCL’s guidance is about 10 sq m per kW, so a 100 kW plant needs roughly 1,000 sq m of usable roof.
3. How much solar capacity can a commercial consumer install in Telangana?
Ans. It’s tied to your sanctioned load or contract demand and set by the regulator. Check the current rule on the TGERC and TGSPDCL websites, or ask your EPC to cite it.
4. Can a business claim a tax benefit on solar?
Ans. Often yes, for plants the business owns. The rates and conditions change, so ask your chartered accountant for the current position.