Open engineering calculators, plain-language scheme guidelines, and a micro-categorised supply-chain directory — one vendor-neutral resource for homeowners, housing societies, researchers, EPCs, and SCM teams.
One neutral resource, five audiences. Start with the pathway that matches your role in India’s solar ecosystem.
Central subsidies materially change solar economics — if the filing is done right. Select a category to see what the schemes offer.
PM SURYA GHAR MUFT BIJLI YOJANA
₹78,000
maximum direct subsidy for 3 kW+ systems
Society solar projects stall in meetings, not on rooftops. These open templates help any managing committee run a transparent, well-documented adoption process — free to download, no email wall.
The cheapest quote usually saves money on exactly three things: components, anchoring, and structure. Those are the three things worth scrutinising in any proposal you receive.
Modules from Tier-1 bankable manufacturers, string inverters with 98%+ efficiency, and switchgear from reputed electrical brands. A quality handover logs every serial number for full traceability.
100%
traceable BOM
No slab drilling with loose fasteners. Structures fixed with chemical anchor bolts that cure into the RCC give higher pull-out strength, minimal water seepage paths, and support a leak-free certification the installer should provide.
0
seepage paths by design
Marine-grade aluminum mounting rated for 150+ km/h wind zones, sized per IS 875 load standards. Elevated designs keep your terrace usable and let bifacial rear faces breathe.
150+
km/h wind rating
A neutral reference for SCM teams, EPCs, and researchers — filter across six precise supply-chain departments by certification and operating state. No rankings, no paid placement.
Open the Vendor DirectoryThe national picture every stakeholder is operating within — the scale of the transition, the policy targets, and the support on offer.
0+ GW
India’s installed solar capacity
0 Cr
Homes targeted under PM Surya Ghar
0 GW
Non-fossil capacity goal by 2030
₹0
Max residential rooftop subsidy
Indicative national and policy figures for context; refer to MNRE and DISCOM sources for current, authoritative data.
The questions that come up in living rooms and committee meetings every week — answered plainly, without a sales angle. For deeper reading, explore the guidelines and open tools.
Read the InsightsRoughly 80 sq.ft of shadow-free area per kW. A typical 3 kW home system needs about 240 sq.ft; a 100 kW society plant needs around 8,000 sq.ft. A proper site survey maps usable area precisely, accounting for water tanks, parapets, and shadow paths across seasons.
Residential consumers get ₹30,000/kW for the first 2 kW and ₹18,000 for the third kW under PM Surya Ghar — up to ₹78,000 total. Housing societies and RWAs get ₹18,000/kW for common-area systems up to 500 kW. Commercial and industrial consumers don’t receive capital subsidy but benefit from accelerated depreciation (40%) and open-access savings. In every case, applications route through the national portal and the local DISCOM.
Not with the right method. Chemical anchor fasteners that cure into the RCC slab — rather than expansion bolts that stress it — combined with waterproofing compound at every penetration point and a signed leak-free certification with a post-monsoon inspection, are what a quality installation should provide.
A grid-tied home stays connected to the grid. Solar generation is first consumed live; surplus is exported through the net meter and credited against what is drawn at night or on overcast days. Most well-sized systems settle the annual bill at 80–95% lower than pre-solar.
Residential systems: typically 15–20 days from advance to commissioning, including DISCOM approvals. Society and commercial projects: 45–90 days depending on capacity, with structure fabrication and liaison running in parallel. Net-meter installation timelines depend on the local DISCOM and are usually the final step.
Very little — module cleaning every 2–3 weeks (annual maintenance contracts usually include it), an electrical health check twice a year, and inverter replacement typically once in the plant’s 25-year life. A monitoring app flags the owner and the service provider if generation drops below expectation.
How Indian homeowners can claim up to ₹78,000 in central subsidy for rooftop solar — eligibility, documents, and the exact application flow.
Read articleCommon-area electricity is the second-largest expense for most societies. A 163 kW rooftop array changes that equation permanently.
Read articleBifacial modules harvest reflected light from their rear face. Here is when that translates into real generation — and when it does not.
Read article