Slash power costs by 50–80%.
Indian industrial tariffs run ₹8–12/unit depending on state. Solar lands at ₹2.5–4/unit over 25 years — and stays flat while grid costs keep rising.
Why commercial solar, now
The most-tax-efficient asset on your books.
Industrial tariffs across major Indian states rose ~5% in 2025 and continue rising in 2026. Solar locks in your effective rate at ₹3 / unit for 25 years — and the tax man helps you pay for it.
3–5 year payback.
With accelerated depreciation and GST input credit, a CAPEX system pays back in 36–60 months. Then 20+ years of pure return.
Hedge against tariff hikes.
Indian industrial tariffs have risen 4–6% annually for the last decade. Solar locks your effective rate at today's number for two decades.
Strengthen ESG and BRSR reporting.
Scope-2 emissions reduction, RPO compliance, and verifiable green-energy certificates — the documentation your investors, customers and auditors want.
Tax-efficient asset.
40% accelerated depreciation in year 1 + GST ITC + Section 80-IA benefits where applicable. Effective post-tax payback is often 1–2 years shorter than headline.
Brand & employee story.
"We run on solar" is a recruiting line, a customer line, and a procurement-tender line. Especially if you sell to multinationals with Scope-3 mandates.
Sectors we serve
From a 50 kW hotel rooftop to a 5 MW factory shed.
Every sector has a different load profile, tariff slab, and roof type. Our designs reflect that.
Financing models
CAPEX, OPEX, or somewhere in between.
Three structures, three different ways the cash and the tax benefits flow. Pick the one that fits your balance sheet — we'll model the math on your numbers.
CAPEX
Best long-term returnYou own the system.
You pay the upfront capex and capture the full upside: 40% accelerated depreciation in year 1, GST input credit, and every unit of savings for 25 years. Equity IRRs of 25–35% are typical for well-designed systems.
Pros
- Highest 25-year return
- Accelerated depreciation
- GST input credit
- Full ownership of asset
Watch-outs
- Upfront capital required
- You manage performance
Best for
Profitable businesses with available capital and a tax appetite
OPEX / PPA
Zero capexA developer owns it, you buy the units.
A renewable energy service company (RESCO) finances, installs and operates the system on your roof. You sign a 15–25 year Power Purchase Agreement to buy electricity at ₹4–6/unit (vs the grid's ₹9–14/unit). Zero capex, savings from day one.
Pros
- Zero upfront capex
- Savings from day 1
- Performance risk on developer
- No O&M headache
Watch-outs
- Lower lifetime return
- Long-term contract
- No depreciation benefit
Best for
Companies preserving cash, or with limited tax appetite
Hybrid / Lease-buyout
FlexibleStart opex, switch to capex later.
Begin under an OPEX contract — preserve cash, lock in savings. After year 5 or 7, exercise a pre-agreed buyout clause to take full ownership at a discounted residual value. Best of both worlds.
Pros
- Flexible cash flow
- Switch to ownership at buyout
- Defers capex decision
Watch-outs
- Buyout pricing locked early
- Slightly higher overall cost
Best for
Mid-size businesses unsure of long-term plans
Project lifecycle
Six phases. Zero surprises.
Every commercial project follows the same disciplined gate-by-gate process. You sign off at the end of each phase before we move to the next.
Phase 01
Week 1Feasibility & energy audit
- Roof structural inspection (RCC / metal sheet / asbestos)
- Shadow analysis and tilt optimisation
- Load profile & tariff slab review
- Site-specific generation forecast
Phase 02
Weeks 3–5Approvals & financing
- CEIG / DISCOM application filing
- Net metering or open access registration
- Bank coordination for term loans (if CAPEX)
- PPA structuring (if OPEX)
Phase 03
Weeks 4–10Procurement & EPC
- Tier-1 panels & ALMM-listed inverters
- Galvanised mounting structures (170 km/h rated)
- Cable trays, earthing, lightning arrestors
- Quality checks at every milestone
Phase 04
Week 11Commissioning & handover
- String testing & IV-curve verification
- CEIG inspection and approval
- Net-meter installation and grid sync
- Owner training, drawings, warranty pack
Phase 05
OngoingO&M for 25 years
- Remote monitoring & monthly performance reports
- Quarterly cleaning and IV testing
- Annual thermal imaging inspection
- Guaranteed PR (Performance Ratio) clauses
Case study · Manufacturing
A 450 kW rooftop, paid back in 3.6 years.
Mid-size auto-component manufacturer in a north-India industrial cluster. The numbers below come from their actual FY25–26 audited financials and are representative of large-rooftop C&I installations we deliver across India.
* Indicative figures from one site. Final commercial returns depend on tariff slab, load profile, financing choice and applicable tax position.
"Garv's design team caught a shading issue in Phase 01 that two earlier vendors missed. Their model said 6.75 lakh units/year — we're tracking at 6.81. Three years of clean numbers and no excuses."
VP Operations
Auto-components manufacturer · India
For finance and operations leaders
The questions your CFO will ask.
For a broader list across home, commercial and technical topics, head to our FAQs page.
Post-tax IRR on commercial solar typically runs 18–28% over 25 years — 4–6x higher than corporate FDs, with a real asset on your books and an inflation hedge baked in. The 40% accelerated depreciation creates an immediate tax shield in year 1.
CAPEX projects pay back in 3–5 years after accounting for accelerated depreciation and GST input credit. OPEX projects have no "payback" since there's no upfront spend — savings start day 1. Specific numbers depend on your tariff slab and load profile.
Under Section 32 of the Income Tax Act, commercial solar assets qualify for 40% depreciation in year 1 (vs the normal 15%). At a 25% corporate tax rate, that's an immediate tax shield of ~10% of the system cost — a major reason CAPEX outperforms OPEX for profitable companies.
Profitable companies with capital and tax appetite generally win with CAPEX — highest IRR, full ownership. Cash-tight companies or those expecting losses should consider OPEX. Hybrid (lease-to-own) works for mid-size businesses unsure of their 10-year horizon. We model all three on every quote.
For systems up to 500 kW, expect 8–12 weeks from contract to commissioning. Larger projects (1 MW+) typically run 12–20 weeks. The critical path is usually DISCOM approvals (CEIG inspection, net metering / open-access), not the physical install.
We do a structural inspection in Phase 01. If the roof is metal sheet but sound, we use bracket-clamp mounts. If it's aged or asbestos, we typically include roof replacement in scope (often funded by the solar savings themselves). RCC roofs are easiest and cheapest to install on.
No. We work in zones, isolate sections, and schedule grid cutovers for low-load hours. For factories with continuous operations, we typically complete EPC over weekends and shutdowns. Production downtime is usually zero.
Three ways. (1) Tier-1 panels with 25-year linear warranty (≥85% output at year 25). (2) Inverter warranty 5–10 yrs with optional extension. (3) Our O&M contract includes a guaranteed Performance Ratio clause — if generation drops below the contractually agreed level, we pay the shortfall.
Yes. Captive solar generation counts toward your RPO target in most states. We help with the registration with the SLDC and the issuance of RECs (Renewable Energy Certificates) where applicable.
Send us your last 3 bills.
We'll send you a feasibility study.
No-cost, no-obligation. Within five working days you'll have a site-specific generation model, CAPEX / OPEX / hybrid comparison, post-tax IRR, and a written savings projection — the numbers your finance team needs to greenlight the project.
What you'll receive
- Site-specific generation forecast
- CAPEX / OPEX / hybrid comparison
- Year-by-year savings & IRR model
- Subsidy and tax-benefit mapping
- Roof structural assessment
- Indicative timeline & milestones