Heaven Green Energy is an authorised channel partner of Adani and a PM Surya Ghar empanelled vendor. Mumbai has three distribution licensees, so the first thing we do is read your bill and confirm whether Adani Electricity, Tata Power or BEST supplies you. Then we size, install, file net metering and claim your subsidy.
Send us your bill and pin code. An engineer calls back with your licensee, system size, cost after subsidy and payback, usually within 2 working hours.
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The short answer
Rooftop solar in Mumbai costs about ₹2.00 lakh to ₹2.50 lakh for 3 kW before subsidy, falling to ₹1.22 lakh to ₹1.72 lakh after the ₹78,000 PM Surya Ghar subsidy. Each kW generates 3.8 to 4.2 units a day on this coast. Net metering is filed with Adani Electricity, Tata Power or BEST, whichever bills you. Payback runs three and a half to five years.
Last reviewed 18 September 2026 · Heaven Green Energy engineering team
Most Mumbai solar pages quote a national average and hide the rest behind a form. This table answers the question outright. Find your monthly bill in the left column, then read across for system size, monthly generation, shadow-free roof area and what it costs after subsidy. The bands are wide because a fourteenth-floor terrace genuinely costs more to build on than a bungalow roof in Vile Parle.
| Your monthly bill | System | Generates | Roof needed | Cost after subsidy | Payback |
|---|---|---|---|---|---|
| Up to ₹1,800 | 2 kW 1–2 BHK, one AC used sparingly | 225–250units/month | ~200 sq ft | ₹80,000 – ₹1.15 lakh ₹1.40 lakh–₹1.75 lakh before ₹60,000 subsidy | 3.5–4.5 years |
| ₹2,000–₹3,500 | 3 kW Best value The largest system that still earns the full ₹78,000 | 340–375units/month | ~300 sq ft | ₹1.22 lakh – ₹1.72 lakh ₹2.00 lakh–₹2.50 lakh before ₹78,000 subsidy | 3.5–4.5 years |
| ₹3,500–₹6,000 | 5 kW 3 BHK running two ACs through summer | 565–625units/month | ~500 sq ft | ₹2.32 lakh – ₹3.02 lakh ₹3.10 lakh–₹3.80 lakh before ₹78,000 subsidy | 4–5 years |
| ₹6,000–₹13,000 | 10 kW Bungalows, clinics, shops, coaching institutes | 1,130–1,250units/month | 700–1,000 sq ft | ₹4.87 lakh – ₹6.12 lakh ₹5.65 lakh–₹6.90 lakh before ₹78,000 subsidy | 4–5 years |
| Above ₹13,000 | 25 kW+ Commercial connections, on accelerated depreciation | 2,825–3,125units/month | Site-specific | ₹11.50 lakh – ₹14.50 lakh ₹11.50 lakh–₹14.50 lakh, no subsidy | 3–4.5 years |
Indicative Mumbai market ranges for 2026, covering Tier-1 modules, a branded inverter, galvanised structure, protection and installation. These are not a Heaven Green quotation. Subsidy amounts are the central PM Surya Ghar figures published on pmsuryaghar.gov.in. Generation assumes a shadow-free, roughly south-facing roof.
The 3 kW cliff decides most Mumbai orders. PM Surya Ghar pays ₹30,000 per kW for the first two kilowatts and ₹18,000 for the third, then nothing. So the subsidy wipes out roughly a third of a 3 kW system and closer to a tenth of a 10 kW one. If your bill sits on the boundary, 3 kW returns more rupees per rupee spent. Above that you are buying units, not subsidy. Size on your consumption first, then check what the subsidy does to the net figure.
A cheap Mumbai quote is cheap in the structure and the access plan, not the panels. Galvanising thickness, cable gauge, earthing and surge protection separate the bottom of each band from the top. On a Mumbai terrace the cost that vendors quietly delete is the one you cannot see from the ground. That means material hoisting to the eleventh floor, wind-load design, and a corrosion specification that survives salt air. Ask for a written Bill of Materials with make, model and quantity.
City-specific warning: check the sanctioned load before you agree a size. Older Mumbai flats often carry a sanctioned load of one or two kilowatts, and no licensee will approve a system larger than that load. If a vendor sells you 5 kW without mentioning a load enhancement application, your system will fail feasibility after you have paid. Load enhancement is a routine application, but it is an application, and it happens before installation rather than after.
You will notice there is no rupee saving in that table. Mumbai tariffs are slab-based and differ between Adani Electricity, Tata Power and BEST. So the rupee value of one solar unit is not the same for two neighbours in the same lane. Guessing it here would be dishonest. Bring your last bill to the free survey and we work the number out in front of you, slab by slab. We use the units you actually consumed over the past twelve months, not a round figure picked to make the payback look short. Prefer to work it out yourself first? Put your bill into our solar savings calculator. No phone number required.
Heaven Green Energy installations across India. Not stock photography, and not renders. Your Mumbai system is built to the same specification.
PM Surya Ghar Muft Bijli Yojana
Maximum central subsidy for a residential rooftop system.
PM Surya Ghar is a central scheme, so nobody in Mumbai gets a bigger subsidy than anybody else. Anyone advertising a special Mumbai rate is selling you something that does not exist. What changes locally is which licensee processes your file, and Mumbai has three of them. Pick the wrong one on the portal and the application simply sits there.
You register at pmsuryaghar.gov.in with your consumer number, mobile, Aadhaar and address, and you select your discom from the list. Choosing the wrong licensee here is the single commonest reason a Mumbai application stalls, so we sit with you and match it to the bill.
Your licensee checks the application against your sanctioned load. You then select an empanelled vendor. Heaven Green Energy is empanelled, so we map straight to your application without a second registration.
Flat owners need the housing society's written consent for terrace use before work starts. We supply Adani modules with traceable serial numbers, and hand you a Bill of Materials and warranty schedule on completion.
Adani Electricity, Tata Power or BEST inspects the installation and fits the bidirectional meter, which generates the commissioning certificate on the portal. Our engineer attends the inspection.
We file the claim once the certificate issues, and government credits the subsidy directly to your bank account. It never passes through us. Treat any vendor who offers to collect the subsidy on your behalf as a warning sign.
PM Surya Ghar covers residential consumers only. A Mumbai shop, office, clinic or commercial tower cannot claim it. Businesses claim accelerated depreciation on the asset instead, which for a taxpaying company often returns more than the residential subsidy would have paid.
This is where nearly every competing Mumbai page fails. Get the licensee wrong and your application goes to a utility that does not supply you.
Mumbai is the only Indian city with three distribution licensees inside one municipal boundary. Brihanmumbai Electric Supply & Transport (BEST), run by the municipal corporation, supplies most of the island city from Colaba up to Mahim and Sion. Adani Electricity Mumbai Limited (AEML), formerly Reliance Infrastructure's distribution business, holds the licence across most of the suburbs. That covers, broadly, Bandra to Dahisar on the western side and the eastern suburbs up to Vikhroli, plus Mira-Bhayander beyond the city limit. The Tata Power Company Limited is a parallel licensee. In the suburbs many consumers switched over from the incumbent network, and Tata Power now bills them at the same address. Mulund and Bhandup, at the north-eastern edge, are supplied by MSEDCL rather than by any of the three.
That is why the only reliable answer to "who is my discom in Mumbai" is printed on your own bill. Two flats in one building can sit with different licensees because one household exercised changeover and the other did not. We check the bill before we file anything.
The commercial terms are common to all of them. They come from the Maharashtra Electricity Regulatory Commission (MERC), not from the utility and not from us. Under the MERC framework your system is capped at your sanctioned load, every consumer category may apply, and surplus units you export are credited against units you draw later.
Consumer details, sanctioned load, system rating, single-line diagram and equipment datasheets go to Adani Electricity, Tata Power or BEST, whichever your bill names.
Filed by usThe utility tests whether your sanctioned load and the local distribution transformer carry the proposed capacity. Oversized systems are rejected here, which is why we size against sanctioned load on the first visit.
Your licenseeWe install. The licensee inspects earthing, protection, isolation and metering compliance before anything is energised.
Us, then your licenseeYour existing meter is replaced with a bidirectional net meter and the commissioning certificate issues. Export credits begin from this date, not from the day panels went up.
Your licensee
Running a shop, office, tower or factory rather than a home? The economics work differently and this page is written for householders.
Commercial consumers in Nariman Point, Bandra Kurla Complex, Lower Parel, the Andheri MIDC and SEEPZ belt, Saki Naka, Powai and Vikhroli get no PM Surya Ghar subsidy. They claim accelerated depreciation on the asset instead, which for a taxpaying business often beats the residential subsidy outright. They can also avoid capital outlay altogether through OPEX or RESCO models.
Mumbai commercial tariffs are among the highest in India, so a roof that generates through the working day pays back faster here than the same roof inland. Office towers and retail have the useful property of consuming most of their power between ten and six, exactly when the array produces. Self-consumption is therefore high, and less depends on export credits. We deliver turnkey commercial and industrial EPC across the city, with structural design to coastal wind-load standards, licensee registration and long-term operations and maintenance.
Registered housing societies sit in between. The common-area connection behind lifts, pumps and lobby lighting is a residential load. So a society system is usually the highest-return solar project in the building, and it lowers the maintenance charge every flat pays.
We have built solar since 2017 and delivered more than 10,000 installations across India, from single flats and society terraces to industrial plants in the hundreds of kilowatts. Four things separate us from a cheap Mumbai quote.
Heaven Green Energy is headquartered at Mota Varachha, Surat. We have no Mumbai office and no Mumbai phone number, and we would rather say so here than after you sign. We serve Mumbai and the wider Konkan region through our channel partner network and field engineering team. They run the surveys, supervise installation and handle coordination with Adani Electricity, Tata Power or BEST on the ground.
Four steps to a spinning net meter, including the parts that belong to your licensee rather than to us.
We measure shadow-free terrace area, check the slab and parapet, and read your sanctioned load and twelve months of consumption. We also log shading from tanks, lift rooms and neighbouring towers, and confirm the licensee.
Day 1–3System size, layout, Bill of Materials with makes and models, generation estimate at Mumbai irradiance, your subsidy and payback. For societies we supply a version the committee can circulate.
Day 3–6We file with the national portal and your licensee, then install once feasibility clears. A typical flat or bungalow roof takes two to four days; a society terrace takes longer.
Day 6–20The utility inspects, fits the bidirectional meter and issues the commissioning certificate. We file your claim and government pays the subsidy into your account.
Set by your licenseeA system specified for a dry inland plateau is the wrong system for a roof five kilometres from the Arabian Sea. Three local conditions change the engineering here, and the vendor who ignores them quotes you less and delivers less.
Sea air carries chloride inland across the whole city, and it attacks the cheap parts of an array first: fasteners, clamps, thin galvanising and any exposed cut edge. Mumbai roofs want hot-dip galvanised or aluminium mounting, stainless fixings and properly sealed junctions. Skimp on the structure here and you are replacing it long before the panels reach their warranty.
Mumbai takes around two thousand millimetres of rain between June and September, most of it in a handful of weeks. Output drops through those months, which is precisely why net metering matters more here than batteries: the surplus you bank from October to May pays for the monsoon dip. Cable entries, conduit sealing and inverter siting decide whether the system rides the rain out or trips.
Terraces twelve floors up see wind speeds that a ground-floor bungalow never does, and a Konkan pre-monsoon squall tests every fastener. Wind-load design, ballast or anchoring and fastener grade are not optional at that height. Humidity adds the second problem, because damp holds grime on the glass instead of letting it blow off.
We install across the island city, both suburban belts and the commercial districts. The licensee notes below are the general pattern, not a guarantee for your address, because changeover cuts across localities. An area missing from this list is not one we refuse, so call and ask.
Colaba · Fort · Churchgate · Marine Lines · Girgaon · Malabar Hill · Tardeo · Byculla · Parel · Lower Parel · Worli · Prabhadevi · Dadar · Mahim
Bandra · Khar · Santacruz · Vile Parle · Andheri West · Jogeshwari · Goregaon · Malad · Kandivali · Borivali · Dahisar · Juhu · Versova · Lokhandwala
Sion · Wadala · Kurla · Chembur · Ghatkopar · Vikhroli · Powai · Chandivali · Bhandup · Mulund · Govandi · Mankhurd · Antop Hill · Deonar
Nariman Point · Bandra Kurla Complex · Lower Parel mills district · Worli business district · Andheri East MIDC · SEEPZ · Marol · Saki Naka · Powai business park · Kanjurmarg · Goregaon Nesco belt
Verified Heaven Green Energy customers, each shown with the city their system was actually installed in. We do not re-label customers to match the page you happen to be reading.
My electricity bill dropped from ₹7,800 to less than ₹400 in two months. PM Suryaghar paperwork, DISCOM approval, net meter, they handled everything.
Our showroom AC bills used to be ₹38k/month. After 25 kW solar, it's ₹3,500. 25-year warranty paperwork was registered same day. Smooth experience.
80 kW on our hospital rooftop. Diesel backup running time cut by 60%. Heaven Green's structural design cleared all wind-load checks first time.
Including ours. Take this list to every vendor you speak to.
17 questions Mumbai buyers actually search for, including the ones competing pages leave out. Grouped so you can skip to what you need.
Cost & subsidy
Net metering & DISCOM
Sizing & performance
Installation & service
About Heaven Green
Every city we cover is listed in the solar by location directory.