Solar Installation in Surat: Complete Guide 2026

Surat receives about 5.5 peak sun hours per day on a south-facing panel tilted at around 21° (NASA POWER long-term average), and most of the city is served by DGVCL (Dakshin Gujarat Vij Company Limited), with parts of Surat city under Torrent Power. Put those facts together and you have one of the more financially compelling rooftop solar markets in India. A 3 kW on-grid system costs ₹1,02,000–₹1,47,000 after the ₹78,000 PM Surya Ghar subsidy, generates about 375 to 400 kWh/month on average, and pays back in about 3.5 to 5.5 years. After payback, electricity is effectively free for the next 20+ years.

This guide is the only reference you need before going solar in Surat. It covers system sizing, accurate 2026 costs, the DGVCL subsidy and net metering process, commercial solar economics for Surat’s textile and diamond industries, how to verify a quality installer, and the eight most expensive mistakes Surat homeowners make.

Direct answer. Installing solar in Surat in 2026 costs ₹1,80,000–₹2,25,000 gross for a 3 kW system. After the ₹78,000 PM Surya Ghar subsidy, net cost is ₹1,02,000–₹1,47,000. Payback runs about 3.5 to 5.5 years at an assumed ₹5.80/kWh saving. The entire process, application to subsidy receipt, takes 45 to 75 days with a portal-registered installer.

---

---

Why Surat Is One of India’s Best Solar Cities

Surat has a rare combination of factors that make rooftop solar more financially attractive here than in most Indian cities.

Solar irradiation. At 21.2°N latitude, Surat’s Global Horizontal Irradiation (GHI) averages about 5.4 kWh/m²/day over the year, and about 5.5 kWh/m²/day on a panel tilted at the optimal 21°, according to NASA’s POWER long-term climatology. The dry season from October through May delivers consistent clear-sky days. Even during the monsoon (June–September), Surat’s short, intense rainfall periods mean more cloud-free hours per monsoon day than coastal cities further south. Over a full year, Surat’s solar resource is a little below Ahmedabad’s and Jodhpur’s (about 5.5 and 5.7 kWh/m²/day of GHI), on par with Hyderabad’s, and slightly better than Mumbai’s or Pune’s (about 5.3 and 5.1).

Slab-based DGVCL electricity tariffs. DGVCL’s residential (RGP) energy charges from 1 April 2026, per the GERC tariff schedule, step up with consumption:

• First 50 units a month: ₹3.05/unit
• Next 50 units (51 to 100): ₹3.50/unit
• Next 150 units (101 to 250): ₹4.15/unit
• Above 250 units: ₹5.20/unit

On top of the energy charge, every unit carries the fuel and power purchase adjustment surcharge (FPPAS), which DGVCL revises periodically under a GERC formula, so the all-in cost of your top units is well above the energy charge alone. Torrent Power’s Surat licence area has its own schedule (₹3.20 to ₹5.05/unit). A Surat family with two or three air conditioners, a refrigerator, washing machine, and regular daytime appliance use typically consumes 300 to 600 kWh/month, landing in the top ₹5.20/unit slab. Every kWh your solar system generates instead saves you that top-slab rate plus the fuel surcharge. That is a strong financial case before factoring in any subsidy.

Ideal rooftop architecture. Surat’s housing stock, particularly in areas like Adajan, Vesu, Katargam, Udhna, and Althan, is dominated by flat-rooftop bungalows and row houses. Flat roofs allow flexible panel orientation and are structurally straightforward for installation. Most Surat homes can accommodate a 3 to 8 kW system with minimal shading from adjacent buildings.

Active PM Surya Ghar participation. DGVCL has processed thousands of PM Surya Ghar applications in Surat since the scheme launched. The PM Surya Ghar Muft Bijli Yojana portal tracks real-time applications across all DISCOMs. DGVCL’s feasibility approval averages 7 to 14 working days. The subsidy disbursement process through DGVCL is well-established: MNRE’s guidelines have the CFA processed within 15 days of DGVCL approval and paid by DBT when you redeem the e-token on the portal.

Strong installer competition. Surat’s large industrial solar market has attracted dozens of established EPCs, many of them registered on the PM Surya Ghar national portal. This creates genuine competition on price and quality, which benefits residential buyers, provided you verify credentials before signing.

For a broader look at how Surat compares to other Gujarat cities, see our complete guide to solar installation in Gujarat.

---

System Sizing for Surat Homes: 1BHK to 4BHK

Choosing the right system size is the most important decision in a solar installation. Too small and you miss out on savings; too large and you over-export at the low feed-in tariff surplus rate of ₹2.25/kWh (first five years) instead of saving your full slab rate plus fuel surcharge. The goal is to size your system to cover 90 to 100% of your daytime consumption.

Sizing method. Use your last 12 months of DGVCL electricity bills. Take your average monthly units consumed. Divide by 30 days, then divide by the number of effective solar hours (use 5.0 for a conservative Surat annual average including monsoon). Add 10 to 15% margin for inverter losses and soiling. That is your target system capacity in kW.

Typical sizing for Surat household types:

Home Type	Typical Monthly Consumption	Recommended System	Roof Area Needed
1 BHK (no AC)	80 to 150 kWh	1 to 2 kW	8 to 15 sq. m
2 BHK (1 AC)	150 to 280 kWh	2 to 3 kW	15 to 22 sq. m
3 BHK (2 AC)	280 to 450 kWh	3 to 5 kW	22 to 38 sq. m
4 BHK (3+ AC)	450 to 700 kWh	5 to 7 kW	38 to 55 sq. m
Villa / independent house	500 to 900 kWh	6 to 10 kW	48 to 80 sq. m

Monthly DGVCL bill to system size: If your average monthly bill is ₹1,500–₹2,500, a 2 kW system is likely right. If your bill is ₹2,500–₹5,000, look at 3 to 4 kW. Bills above ₹5,000/month generally justify 5 kW or larger, especially if you have EV charging or plan to add it.

The subsidy sweet spot. The PM Surya Ghar subsidy caps at ₹78,000 for systems 3 kW and above. Installing exactly 3 kW captures the maximum subsidy. Installing 5 kW also gets ₹78,000, the extra 2 kW is at your full cost. This makes 3 kW the best value-per-rupee-of-subsidy if your consumption allows it.

What if I consume more than a 3 kW can cover? Install the system size your consumption justifies. The economics still work: at an assumed ₹5.80/kWh saving, a well-sized 5 kW system pays back in about 5 to 7 years against 3.5 to 5.5 years for a 3 kW, even without additional subsidy.

For a deeper look at sizing, our home solar system size guide covers the full methodology with consumption calculators.

---

Solar Installation Costs in Surat: 2026 Price Breakdown

Understanding solar costs requires separating four things: gross system cost, subsidy, net cost after subsidy, and actual savings. Many vendors quote only “cost after subsidy”, which looks attractively low, without being transparent about the gross price and whether it is competitive.

What a complete system includes. The prices below cover: ALMM-listed DCR (Indian-cell) monocrystalline PERC panels, BIS-certified string inverter, galvanised steel mounting structure (flat roof ballasted), DC and AC cabling with conduit, DCDB and ACDB protection, earthing system, DGVCL net metering application fee, PM Surya Ghar portal application, 5-year workmanship warranty, and first-year AMC. See our solar panel cost breakdown for how these components are priced individually.

2026 Surat solar installation cost table:

System Size	Gross Cost	PM Surya Ghar Subsidy	Net Cost After Subsidy	Monthly Generation	Annual Savings (₹5.80 avg)
1 kW	₹65,000–₹80,000	₹30,000	₹35,000–₹50,000	125 to 134 kWh	₹8,700–₹9,326
2 kW	₹1,25,000–₹1,55,000	₹60,000	₹65,000–₹95,000	250 to 268 kWh	₹17,400–₹18,653
3 kW	₹1,80,000–₹2,25,000	₹78,000	₹1,02,000–₹1,47,000	375 to 402 kWh	₹26,100–₹27,979
5 kW	₹3,00,000–₹3,75,000	₹78,000	₹2,22,000–₹2,97,000	625 to 670 kWh	₹43,500–₹46,632
10 kW	₹6,00,000–₹7,50,000	₹78,000	₹5,22,000–₹6,72,000	1,250 to 1,340 kWh	₹87,000–₹93,264

Source: Heaven Green Energy benchmark pricing for Surat, 2026. Generation estimates use NASA POWER’s long-term 5.5 kWh/m²/day for a panel at the optimal 21° tilt with a 0.75 to 0.80 performance ratio. Annual savings use an assumed ₹5.80/kWh average saving; your actual figure depends on your slab and the fuel surcharge on your bill.

On-grid vs. hybrid systems, which is right for Surat?

Feature	On-Grid System	Hybrid System (with Battery)
System cost (3 kW)	₹1,80,000–₹2,25,000 gross	₹2,80,000–₹3,60,000 gross
PM Surya Ghar subsidy	₹78,000 (for solar portion)	₹78,000 (for solar portion)
Power during outage	No, grid-tied, shuts off	Yes, battery provides backup
Best for	Areas with reliable DGVCL supply	Areas with frequent cuts, or businesses needing uptime
Payback period	3.5 to 5.5 years	7 to 11 years
Battery life	N/A	8 to 12 years (Li-ion), 5 to 7 years (lead-acid)
Recommended for Surat	Most homeowners, DGVCL is reliable	Factories, hospitals, critical loads

For most Surat homes, an on-grid system is the right choice. DGVCL’s grid reliability in Surat city is generally good. Hybrid systems make sense for commercial applications, homes with critical medical equipment, or areas on the urban fringe with less stable supply.

---

PM Surya Ghar Subsidy Process for DGVCL Consumers in Surat

The PM Surya Ghar Muft Bijli Yojana gives Surat homeowners up to ₹78,000 paid directly into their bank account, not a discount from the vendor, not a voucher, but an actual bank transfer. The only condition: you must use an installer registered on the PM Surya Ghar national portal, and you must be a residential DGVCL consumer. Our detailed guide to getting the ₹78,000 subsidy for solar in Surat covers the complete eligibility criteria.

Step-by-step PM Surya Ghar application process for DGVCL (Surat):

PM Surya Ghar subsidy rates (DGVCL Surat, 2026):

For a detailed examination of the permit and approval documentation needed, see our solar permits Gujarat guide.

---

DGVCL Net Metering in Surat: How It Works

Net metering is the billing mechanism that makes rooftop solar economically viable for Surat homeowners. Without it, your solar system would only be useful during the hours you are at home and consuming power. With net metering, the DGVCL grid acts as a virtual battery: you push excess daytime solar production into the grid and draw it back in the evening, with your bill reflecting only the net difference.

Our comprehensive net metering in India guide covers the national framework, but here is how DGVCL specifically handles it in Surat.

How DGVCL net metering billing works:

• Your bidirectional meter records two numbers: units imported from the grid and units exported to the grid from your solar system.
• DGVCL’s bill charges you for (units imported − units exported) at your applicable tariff slab.
• Set-off happens within each billing cycle. If you export more than you import in a billing cycle, the surplus is not carried forward to the next cycle.
• DGVCL buys that surplus at ₹2.25/unit for the first five years from commissioning, as fixed by GERC, and at 75% of GUVNL’s recent average discovered solar tariff after that.
• Fixed charges apply regardless of solar generation: ₹15 to ₹70 a month for DGVCL residential connections, depending on connected load (₹25 single-phase or ₹65 three-phase in Torrent Power’s Surat area).

Practical design implication. Because surplus units earn only ₹2.25/kWh while self-consumed units save you your slab rate plus the fuel surcharge, a system sized to consume most of its generation is significantly more valuable than an oversized system that exports heavily. A 3 kW system generating about 390 kWh/month on a household consuming 420 kWh/month is near-ideal. A 7 kW system generating about 900 kWh/month on the same household sends roughly 480 kWh of surplus to the grid at a low rate, poor economics.

DGVCL net metering application requirements: After installation, DGVCL’s net metering application requires the commissioning test report from your installer, the DGVCL inspection clearance, your consumer number, and the inverter technical specifications sheet. Your registered installer should handle this paperwork, confirm this before signing any contract. Also review solar commissioning Gujarat for what the technical inspection involves.

---

The Surat Solar Readiness Score: 5 Factors That Determine Your Outcome

Before committing to a solar installation, assess your home against five factors. This is Heaven Green Energy’s proprietary Surat Solar Readiness Score (SSRS): a structured pre-purchase framework that identifies whether your installation will hit projected savings targets or fall short.

Each factor scores 0 to 20 points. A score of 80 to 100 means your installation should hit or exceed projected returns. 60 to 79 means proceed but address the gaps. Below 60 means address the issues before installing or accept reduced returns.

Factor 1, Roof Area (0 to 20 points)

Each kW of solar needs approximately 8 to 10 sq. m of unobstructed, structurally sound roof space. Score 20 if your available area supports a system sized to your consumption. Score 10 if you can fit 60 to 80% of your ideal system. Score 0 if available area is less than 8 sq. m (limits you to 1 kW or less).

Surat context: Most 3 BHK bungalows in Vesu, Adajan, or Althan have 80 to 150 sq. m of roof, no constraint. Multi-storey apartment buildings with shared terraces are the challenge: shared roofs require society NOC and proportional allocation between flat owners.

Factor 2, Sanctioned Load (0 to 20 points)

Under GERC’s net-metering regulations (third amendment, 2022), residential rooftop solar is allowed irrespective of your sanctioned load (the maximum load on your meter), so a low sanctioned load does not cap your system size. What it can affect is your connection: DGVCL supplies single-phase only up to 6 kW of aggregate load. Most Surat homes have sanctioned loads of 3 to 7 kW for residential connections. Score 20 if your existing connection already suits the planned system. Score 10 if a meter or service-line change is likely. Score 0 if you would need a single-phase to three-phase conversion first, which adds time and cost.

Factor 3, Grid Zone and Transformer Capacity (0 to 20 points)

DGVCL will check transformer loading in your area during feasibility review. Overloaded transformers can delay or block approval. Score 20 if you are in a residential area of Surat with established solar penetration (transformer upgrades typically already done). Score 10 if you are in a newer development area where transformer loading is uncertain. Score 0 if you are in an area where multiple neighbours have recently applied, there may be a transformer queue.

Factor 4, Shade Assessment (0 to 20 points)

This is the single most underestimated factor in Surat installations. Score 20 if your roof has unobstructed south/southwest sky view from 9 AM to 4 PM year-round. Score 10 if you have partial shading (water tank, parapet wall) affecting less than 20% of panels. Score 0 if you have significant shading from a taller adjacent building, large trees, or overhead electrical infrastructure, shading reduces output dramatically and may invalidate the financial case entirely.

Factor 5, Budget and Financing (0 to 20 points)

Score 20 if you can pay the net cost after subsidy upfront from own funds, no interest cost, fastest payback. Score 15 if you are using a solar loan at 8 to 10% interest, payback extends by 1 to 2 years but remains financially positive. Score 5 if you are financing at above 12%, the interest cost significantly erodes returns. Score 0 if you cannot fund even after subsidy without high-cost credit, the financial case does not work.

Interpreting your SSRS: Add up your five scores. 90 to 100 = excellent candidate, install now. 75 to 89 = strong candidate, address minor gaps. 55 to 74 = possible, but get a thorough site assessment first. Below 55 = address root causes before investing. Heaven Green Energy conducts a full SSRS assessment as part of every free site visit, contact us to schedule yours.

---

Commercial Solar in Surat: Textile and Diamond Industries

Surat is home to two industries with enormous electricity intensity: the textile power loom and processing sector, and the diamond cutting and polishing industry. Both operate at DGVCL commercial and industrial tariffs that make solar even more attractive than the residential case.

DGVCL commercial and industrial tariffs (2026): Under the GERC tariff schedule from 1 April 2026, LT commercial and industrial connections pay an energy charge of ₹4.35 to ₹4.65 per unit (Non-RGP and LTMD), plus fixed or demand charges, the fuel surcharge (FPPAS) and electricity duty, so the all-in cost per unit is far higher than the energy charge alone. Solar generation during business hours offsets daytime grid units, though consumers with ToD meters already get a 60 paise/unit discount from 11 AM to 5 PM, while the 45 paise peak surcharge applies 7 to 11 AM and 6 to 10 PM. The Gujarat Energy Development Agency (GEDA) is the state’s renewable energy nodal agency.

Textile industry. Surat’s power loom sector clusters around Katargam, Udhna, Pandesara, and Sachin GIDC. A typical 20-loom power loom unit consumes 15,000 to 25,000 kWh/month. A 50 to 100 kW rooftop solar system can offset 30 to 60% of daytime consumption. At an assumed ₹8.50/kWh all-in cost, a 100 kW system generating about 12,500 to 13,400 kWh/month saves roughly ₹12.8 to ₹13.7 lakh annually. Gross system cost: ₹55–₹75 lakh. Payback: about 4 to 6 years before the accelerated depreciation benefit. Commercial solar installations are also eligible for 40% accelerated depreciation under Section 32 of the Income Tax Act (half that if the system is used for less than 180 days in its first year), a significant additional benefit for taxpaying businesses.

Diamond industry. Diamond polishing factories in Surat’s Varachha, Sachin, and Sarthana areas run precision machinery with sensitive power requirements. Hybrid solar systems with automatic voltage stabilisation and smooth inverter switching are standard for diamond polishers. System sizes range from 20 to 150 kW depending on factory size.

Commercial net metering under DGVCL. Commercial and industrial rooftop systems are set off under GERC’s net-metering regulations: within the billing cycle for most LT consumers, but only between 7 AM and 6 PM for LT demand-based and HT consumers. Surplus is bought at ₹2.25/unit for the first five years for MSME manufacturing units and at 75% of GUVNL’s recent average discovered solar tariff for other businesses, far below what you save by self-consuming. This makes oversizing industrial systems expensive, size to self-consumption as with residential systems.

Key difference from residential solar. Commercial installations do not qualify for PM Surya Ghar’s ₹78,000 subsidy (residential-only scheme). However, GST on solar modules and complete systems is 5% (about 8.9% blended on a supply-and-install contract, up to 18% on separately sold components), and businesses can claim input tax credit on the GST paid. Between ITC, accelerated depreciation, and tariff savings, commercial solar returns in Surat are strong. Discuss commercial solar specifics with our Surat solar team.

---

How to Choose a Solar Installer in Surat

Surat’s active solar market means you will receive quotes from a range of installers, from large established EPCs to local electricians with a sideline in solar. The quality gap between them is enormous. Choosing wrong means panels that underperform by 15 to 25% for 25 years, or a net metering application that never gets processed, or a subsidy that never arrives.

The five verification steps before signing any contract:

Step 1, Confirm portal registration. Any installer claiming to process PM Surya Ghar subsidy must be registered as a vendor on pmsuryaghar.gov.in. Ask for their registration number and verify it on the portal yourself. Unregistered installers cannot process your subsidy, full stop.

Step 2, Check DGVCL familiarity. Ask the installer to walk you through the DGVCL feasibility and net metering process in detail. A competent installer will know DGVCL timelines, inspection requirements, and the consumer number format. Vague answers indicate limited experience with DGVCL specifically.

Step 3, Verify panel and inverter brand. Tier-1 panels from Waaree, Adani Solar, Goldi Solar, or Vikram Solar are the standard for Surat installations. Any installer offering no-name panels at unusually low prices is compromising on equipment that will affect generation for 25 years. Similarly, inverters should be BIS-certified and from established brands, Growatt, SolarEdge, SMA, Delta, or equivalent.

Step 4, Ask for installation references in Surat. A credible installer will have references in Surat, not Ahmedabad or Vadodara. Ask for three to five recent customer names and contact numbers. Call them. Ask specifically about DGVCL net metering timeline and whether the subsidy arrived on time.

Step 5, Get itemised quotes. Request a quote that itemises: panel brand, model, and quantity; inverter brand, model, and capacity; mounting structure type and material; DC cable length and gauge; DCDB and ACDB specifications; earthing details; application fees (net metering, DGVCL); and warranty terms separately for equipment versus workmanship. A quote that gives only a total price or a “price per kW” without itemisation is a red flag.

For context on panel quality decisions, our DCR vs. non-DCR solar panels guide explains the key equipment distinctions.

---

Common Mistakes Surat Homeowners Make When Going Solar

These eight mistakes collectively account for most of the bad solar outcomes in Surat. Each one is avoidable.

Mistake 1, Choosing a vendor solely on lowest price. A 10% lower quote often reflects a 25-year underperformance gap in panel quality, skipped earthing, or no actual PM Surya Ghar portal registration. The cheapest quote rarely represents the cheapest cost of ownership over 25 years.

Mistake 2, Oversizing the system to maximise generation. A 7 kW system on a home that consumes 350 kWh/month exports 500+ kWh monthly at ₹2.25/kWh instead of saving your full slab rate plus fuel surcharge. The oversized system pays back years later than an appropriately sized one.

Mistake 3, Skipping the shade assessment. A 5% improvement in the view angle from the roof can look irrelevant on paper but destroys 15 to 30% of annual generation if an adjacent building or water tank shades panels during peak hours. Always request a shade analysis using solar pathfinder software or string-level monitoring data.

Mistake 4, Ignoring the fixed charges post-installation. Even with zero grid consumption, DGVCL bills a fixed charge (₹15 to ₹70 a month for residential connections, depending on load). This will not go to zero. Factor it into your payback calculations.

Mistake 5, Using a bank account that does not match the electricity account holder’s name. The PM Surya Ghar DBT transfer must go to a bank account in the same name as the DGVCL electricity account. Mismatches cause subsidy delays of weeks to months. Confirm name matching before submitting the application.

Mistake 6, Not confirming your DGVCL connection type before purchase. Residential rooftop solar in Gujarat is allowed irrespective of sanctioned load, but DGVCL supplies single-phase only up to 6 kW of load, so a larger system may need a three-phase connection first, and that change takes time. Check your connection details on your DGVCL bill before choosing system size.

Mistake 7, Installing before feasibility approval. Installing the physical system before DGVCL feasibility approval is confirmed risks the entire subsidy. DGVCL can decline to process net metering for systems installed before feasibility clearance. Always wait for written feasibility confirmation.

Mistake 8, Choosing a hybrid system when on-grid suffices. The battery in a hybrid system adds ₹1–₹1.5 lakh to system cost and carries a replacement cost every 8 to 12 years. For most Surat homes with reliable DGVCL supply, this cost is not justified by the backup benefit. Reserve hybrid for genuinely critical applications.

---

Get a personalised solar assessment for your Surat home. Our DGVCL-experienced team will visit your site, run the Surat Solar Readiness Score, and give you a detailed quote with realistic payback calculations, no obligation. Book your free site visit → or use our Solar Calculator for an instant online estimate.

---

How Heaven Green Energy Helps Surat Homeowners Go Solar

Heaven Green Energy is headquartered in Surat (Utran) and has completed solar installations across DGVCL’s Surat City, Surat Rural, Navsari and Bharuch circles. Our team processes PM Surya Ghar applications daily and has direct working relationships with DGVCL’s net metering and inspection teams.

What we handle end to end for Surat customers:

• Free site visit and Surat Solar Readiness Score assessment within 24 hours of inquiry
• Detailed technical proposal with system design, generation estimates, and itemised costs within 48 hours
• PM Surya Ghar portal registration and document submission
• Adani Solar panels (we are an authorised Channel Partner of Adani Green Energy) and QBits inverters
• Physical installation by DGVCL-experienced certified technicians
• DGVCL feasibility follow-up and inspection coordination
• Net metering application processing with DGVCL
• Subsidy DBT tracking and escalation if delayed
• 5-year workmanship warranty and 25-year panel performance support

Relevant resources for Surat homeowners:

• Residential Solar, full details on what our residential solar package includes
• Best Solar Surat, why Surat homeowners choose Heaven Green Energy
• Solar Calculator, calculate your Surat-specific savings and payback online
• Contact Us, schedule a free site visit with our Surat team

---

Frequently Asked Questions: Solar in Surat

What is the total cost of a 3 kW solar system in Surat in 2026?

A complete 3 kW on-grid rooftop solar system in Surat from a portal-registered installer costs ₹1,80,000–₹2,25,000 gross. After the PM Surya Ghar subsidy of ₹78,000, the net cost is ₹1,02,000–₹1,47,000. This covers panels, inverter, mounting structure, wiring, DGVCL application, and workmanship warranty. Costs vary based on panel tier, roof type, and installer.

How long does the complete solar installation process take in Surat?

From initial site visit to receiving the PM Surya Ghar subsidy in your bank account, the typical timeline for a Surat DGVCL installation is 45 to 75 days. DGVCL feasibility approval: 7 to 14 working days. Physical installation: 1 to 2 days. DGVCL post-installation inspection: 7 to 15 working days. Net meter installation: within 7 days of passing inspection. Subsidy DBT: processed within 15 days of DGVCL approval, released when you redeem the e-token on the portal.

How much electricity will a 3 kW solar system generate in Surat each month?

A properly installed 3 kW system in Surat generates approximately 375 to 400 kWh per month as an annual average, around 4,500 to 4,800 kWh per year. Generation is highest from March to May (about 480 to 530 kWh/month) and lowest in July and August, when monsoon cloud cuts it to about 265 to 285 kWh/month. These figures use NASA POWER’s long-term irradiance for Surat (about 5.5 kWh/m²/day at the optimal tilt) with a 0.75 to 0.80 performance ratio.

Can apartment residents in Surat get solar under PM Surya Ghar?

Yes, but with additional steps. Apartment residents need a No Objection Certificate (NOC) from the housing society, agreement on which flats get roof space, and individual DGVCL consumer accounts for each applicant. A housing society’s common-facility connection can apply under PM Surya Ghar’s GHS/RWA category, which pays ₹18,000 per kW for common facilities (including EV charging) up to 500 kW at 3 kW per house, with individual residents’ plants counted inside that cap.

Which areas of Surat are best for solar installation?

Most of Surat is DGVCL territory, but parts of Surat city are served by Torrent Power, so check the name on your bill. From a solar resource standpoint, there is no meaningful difference between Adajan, Vesu, Althan, Katargam, Udhna, Varachha, Bhestan, or Dumas, all receive about 5.5 peak sun hours daily on a well-tilted panel. The relevant variables are roof orientation (south or west-facing preferred), shading from adjacent buildings, and sanctioned load. Flat-rooftop bungalow areas like Vesu and Adajan have the easiest installation logistics.

Is net metering available for commercial solar in Surat?

Yes. GERC’s net-metering regulations cover commercial and industrial rooftop systems in DGVCL areas, with set-off within the billing cycle for most LT consumers and between 7 AM and 6 PM for demand-based and HT consumers. There is no PM Surya Ghar subsidy, but businesses can claim 40% accelerated depreciation on the system and input tax credit on the GST. Commercial net metering applications go through DGVCL with additional documentation including CTO certificate and load sanction letter.

What happens if my solar generation exceeds my consumption in a month?

Gujarat sets off solar exports against imports within each billing cycle; surplus units are not carried forward to later months. DGVCL buys the surplus left at the end of the billing cycle at ₹2.25/unit for the first five years from commissioning (GERC net-metering regulations), and after that at 75% of GUVNL’s recent average discovered solar tariff. This is significantly lower than the slab rate plus fuel surcharge you save by self-consuming, which is why system sizing to match consumption is important.

What maintenance does a Surat rooftop solar system need?

Surat’s coastal humidity and industrial air quality mean panels accumulate dust and salt deposits faster than inland Gujarat cities. Clean panels every 15 to 20 days during the dry season using plain water, a basic squeegee wash is sufficient. Inspect mounting structure fasteners annually for corrosion (galvanised steel should be fine for 10 to 15 years). Check inverter display weekly for any error codes. Schedule a professional inspection annually for warranty compliance. Panel output should be about 97 to 98% of its rating after Year 1 and, at roughly 0.5% a year after that, about 93% by Year 10; MNRE’s PM Surya Ghar specification requires more than 90% for the first 10 years.

For the current price bands and whether your address falls under DGVCL or Torrent Power, see our Surat solar page.