Straight answers, and where we have been published.
The site and the build, money and models, regulation and risk. For everything else, the first meeting is free and starts from your actual bills.
The things that actually decide a project.
Net metering, net billing and gross metering — and why it decides your plant size
Three settlement regimes, what an exported unit is worth under each, and why banking is being withdrawn across states.
Open access, end to end: structures, charges and the approval chain
Third party, captive and group captive compared; the full charge stack behind the tariff; and the seven approvals between decision and energisation.
Solar and ESG reporting: what is actually driving the purchase
Disclosure obligations, customer supply-chain targets and border carbon — plus the double-counting trap in green attributes.
Group captive or open access? They are not alternatives
One is the route the power takes; the other decides which charges apply when it arrives — and the annual test that catches people years later.
Do you actually need ALMM modules?
A procurement restriction, not a quality standard. Where it applies, where it does not, and what a premium on a captive rooftop should make you ask.
You lease the building. You can still buy the power.
Term mismatch, roof rights and exit position — named properly, and the four structures that resolve them.
Comparing quotes right now? The proposal evaluation checklist is twenty questions you can print and take into the bid comparison. If you would rather start from your own industry, see sectors we serve.
What plant heads and CFOs actually ask.
The site and the build, money and models, regulation and risk. For everything else, the first meeting is free and starts from your actual bills.
We don't have land. Can you find it?
Yes — it is one of the things we are actually built to do. We identify parcels near a substation we have applied to, negotiate with each owner, bring every legal heir on record, obtain restricted-category permissions where they apply, and drive the agricultural-to-industrial conversion. Thirty-year encumbrance certificates and independent title verification come before any significant payment is released.
How long does open-access connectivity take?
It is the longest lead-time item in Indian solar, and it is state-specific. We run the full chain ourselves — substation selection, pre-feasibility, the connectivity application stages through the state nodal agency and transmission utility, right-of-way survey with alternates, and the final connectivity agreement. We site the plant within a few kilometres of the substation we have applied to, because the shortest line is the one that actually gets built.
What is group captive, and would we qualify?
Under the Electricity Act 2003 and Electricity Rules 2005, captive users must hold at least 26% of the equity in the generating entity and consume at least 51% of its annual generation. Meet both and you avoid cross-subsidy surcharge and additional surcharge. The catch is that the test applies every year, not just at signing — so we structure the SPV, the shareholding and the consumption profile to hold in year twelve.
Do you own plants yourself, or only build them for others?
Both. We build turnkey for clients who want to own the asset, and we develop, finance, own and operate plants ourselves and sell the power under long-term agreements — on-site on your roof, or off-site from our own solar parks. Which side of the capital we sit on is your decision, not ours.
Can you take over a plant somebody else built?
Yes, and a fair amount of our operations work is exactly that. We audit the asset, quantify the gap between what it produces and what it should, and take it on under a contract with performance ratio and availability guarantees. Underperformance is usually soiling, string-level faults left undiagnosed, or maintenance that was priced as best-effort and delivered accordingly.
Does solar actually perform in monsoon and winter?
Generation varies through the year and our engineering accounts for all of it — plants are sized on 20+ years of local irradiance data, and the savings we project are annual, not sunny-day numbers. Across our operating fleet, average performance ratio exceeds 80%.
Is my roof strong enough? Will it leak?
A structural assessment comes before any design. Tin sheds and RCC roofs each get appropriate mounting systems, penetrations are sealed and warranted, and walkways protect the sheeting during 25 years of maintenance. We carry a 60+ MWp rooftop design portfolio — industrial roofs are our home turf.
How much roof do we need — and what if it isn't enough?
As a rule of thumb, about 100 sq ft of clear, usable roof per kWp; our minimum on-site project is around 200 kWp — roughly 20,000 sq ft. If the roof can't carry your full load, that is not a dead end: we maximise on-site capacity first, then serve the balance from our solar parks via open access.
What happens at night or on a cloudy day?
Your grid connection stays exactly as it is. Solar serves daytime load first; the grid covers the rest automatically. Surplus is exported under net metering or banking where your state allows — and battery storage can shift solar into the evening where the economics justify it.
Will installation disrupt production?
No. Construction happens on the roof while your plant runs. The only planned interruption is the final grid tie-in, scheduled with your electrical team — typically a short, planned shutdown.
How long does the build take?
Most C&I rooftops move from confirmed order to commissioning within a few months; the exact schedule is committed in your proposal and delivered by our own installation and commissioning teams. Daily photographic progress reporting keeps your team in the loop.
What about safety on our roof?
Walkways, safety rails and lifelines are standard, not extras. HSE norms govern design and execution, we operate ISO 9001, 14001 and 45001 systems, and the same discipline continues through 25 years of cleaning and maintenance visits.
CAPEX or OPEX — which is right for us?
Our default recommendation for on-site solar is CAPEX: you own the asset, keep the full saving and the depreciation benefit, and payback is roughly 3–4 years on strong loads. Capital need not be the constraint — we arrange project financing, typically structured 70:30 debt:equity. For select established, credit-strong organisations we also offer OPEX: zero investment, a per-unit rate typically 10–15% below grid, fixed for 15–25 years.
How does the financing actually work?
You own the plant; Vibgyor arranges project financing alongside it — typically structured 70:30 debt:equity and tailored to your balance sheet and banking relationships. On strong loads the annual saving is designed to comfortably service the repayments, so the plant pays for itself while you keep ownership, the depreciation benefit and the full saving after payback.
What tax benefits apply?
Solar plants qualify for accelerated depreciation under the Income-tax Act (the 40% WDV block for renewable-energy assets), which materially improves post-tax payback for the asset owner. GST and duty treatment are itemised transparently in the proposal; your tax advisor confirms application to your entity.
What savings and payback should we expect?
Sized from your actual bills, not benchmarks. Reference points from operating plants: Varun Beverages Sandila (4.5 MWp) saves ₹3.64 Cr a year with a 3.8-year payback; Moon Beverages Dasna (4.0 MWp) saves ₹4.54 Cr a year with a 3.3-year payback. OPEX rates run typically 10–15% below grid.
What is guaranteed — and what if the plant underperforms?
Generation and performance-ratio commitments backed by liquidated damages; availability guarantees; performance bank guarantees issued against contract value; CAR/EAR insurance through construction and operations. Fleet average PR exceeds 80% — the guarantees have teeth because the fleet performs. Levels are project-specific and confirmed in the term sheet.
What happens at the end of an OPEX term — or if we want out early?
OPEX contracts carry a plant-transfer option after the minimum term, on a mechanism agreed up front. Exit and buyout provisions are written into the PPA before signing — no surprises in year 12. On CAPEX you own the asset from day one, so there is nothing to unwind.
Who handles approvals and the DISCOM?
Vibgyor runs the full regulatory chain — net-metering or net-billing applications, CEIG safety approval, DISCOM liaison and synchronisation. Your team signs; we manage the process and the follow-ups.
Net metering, net billing, banking — what applies to us?
It is state-specific: surplus power may be net-metered, net-billed (as at VBL Supa under MERC's 2023 regulations) or banked within state windows. We engineer plant size to your load profile so every unit earns at your state's best available treatment — the regulatory homework is ours.
Our roof is small — can open access still work for us?
Yes. We maximise on-site capacity first, then serve the balance load from our solar parks through open access. There is no fixed size rule — Green Energy Open Access can open the route from 100 kW in many states, and our team verifies eligibility state by state.
Should we wait for battery prices before going solar?
No — and you need not over-buy either. Plants are engineered storage-ready; co-located BESS shifts midday solar into the evening peak where the economics already justify it. Maharashtra now mandates co-located storage for new C&I solar above 100 kW from April 2026 — storage-paired is becoming the default, and we design for it.
What if we expand — or relocate?
Expansion is the norm: most of our marquee clients started with one roof and added capacity as bills proved the case. Contracts anticipate growth, and for leased or uncertain sites the screen and structure are designed around your tenure before anything is signed.
How does this help our ESG reporting and buyer audits?
Every MWh of solar avoids about 0.71 tonnes of CO₂ at the CEA grid factor, and the plant produces auditable generation data your Scope-2 reporting can cite. Clients like Varun Beverages — whose net-zero 2050 target is SBTi-validated — use their Vibgyor plants as the concrete line in that story.
Who else trusts you with this?
A 190+ MW footprint across 22 states and 5 countries since 2013 — with repeat orders from Varun Beverages (a PepsiCo franchisee, 23 plants), Micro Instruments, ATL (Amperex Technology), Moon Beverages, Creambell, Fortis Healthcare, Continental Engines and Bharat Seats. References and site visits can be arranged.
Define a solar PV system — how does it work?
A solar photovoltaic system converts sunlight directly into electricity with no emission of harmful gases. Sunlight falls on the solar modules, which convert the photons into DC electricity; the inverter then converts that DC into AC power your facility can use.
How much energy does a solar panel produce through the day?
Energy generated is directly proportional to available sunlight, or solar irradiance. Generation in the morning and evening is lower because irradiance is low, whereas at peak hours around noon the system generates at its maximum.
Vibgyor in the news.
Waaree Supplies 2.47 MW Solar Modules to Vibgyor Energy
Jammu Gets 1.5 MW Solar Power Plant From Vibgyor Energy
Vibgyor Energy: Illuminating a Sustainable Future Through Innovative Solar Solutions
Every item above links to the published article. Coverage without a sourced, working link is not listed here.
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