A group captive solar project is a large utility-scale solar plant where multiple consumers jointly invest minimum 26% equity and must consume 51% of the power generated. It allows industries and commercial establishments to purchase solar power at reduced tariffs.

Any commercial or industrial consumer with a 11kV to 110kV HT connection can buy power via the group captive model.

• Consumers collectively must own ≥ 26% of equity
• Consumers must consume ≥ 51% of total generated power
• Power is supplied through Open Access (intra-state or inter-state)

Group captive projects usually start from 5 MW to 500 MW depending on consumer demand.

Consumers typically invest:

• ₹1.25–₹1.70 crore per MW as equity
• Minimum block commonly 1 MW or 2 MW per consumer
• (Exact numbers vary by developer.)

• Electricity tariff reduction of 30–60% vs grid tariff
• No capital investment compared to rooftop
• No maintenance responsibility
• Hedge against future tariff hikes
• 100% green energy for ESG/CSR compliance
• Avoid Renewable Purchase Obligation (RPO) penalties

Group captive solar tariffs in India:
₹3.80 – ₹5.50 per unit (state dependent)
Inclusive of: Transmission, Wheeling, Banking, and O&M charges.

Power Purchase Agreements (PPA) are typically 15–25 years.

• A monthly energy invoice from project SPV
• A DISCOM bill for fixed charges, demand charges, and losses
• Net savings shown in energy statement

Consumers must ensure consumption of 51% of project generation annually; otherwise penalties apply as per open access guidelines.

• Reallocating power to another captive consumer
• Buying additional equity
• Paying charges for deviation

A Special Purpose Vehicle (SPV) is created:
• Developers hold majority equity
• Consumers jointly hold minimum 26% equity
Electricity is supplied exclusively to captive consumers.

• Board Resolution to invest equity
• Shareholder Agreement
• PPA (Power Purchase Agreement)
• Open Access application
• HT consumer details (SLD, connection, sanction load, etc.)

Average payback for industries: 2–4 years through monthly electricity savings.

1 MW of solar requires approx. 4–5 acres of non-agricultural land.

A solar rooftop system is a photovoltaic (PV) installation mounted on the roof of residential, commercial, or industrial buildings to generate electricity using sunlight. It can be on-grid, hybrid, or off-grid.

Solar panels convert sunlight into DC → inverter converts DC to AC → appliances consume the power → extra power is exported to the grid (on-grid systems) generating electricity credits.

• On-Grid (most common, net metering)
• Off-Grid (battery backup)
• Hybrid (grid + batteries)

Yes, most states allow net metering for residential & commercial users.

Approx. 100 sq.ft per kW.

Residential: ₹45,000–₹65,000/kW (post-subsidy)
Commercial/Industrial: ₹35,000–₹50,000/kW

Under PM-Surya Ghar Muft Bijli Yojana:
1–3 kW: ₹18,000/kW
3–10 kW: ₹9,000/kW
Above 10 kW: as per guidelines. No subsidy for commercial/industrial.

Panels: 25–30 yrs
Inverters: 5–10 yrs
Structure: 20+ yrs

1 kW → 4 to 5 units/day depending on weather.

• Clean panels twice a month
• Annual wiring & inverter check
• Performance monitoring via app/portal

Yes. Many banks/NBFCs offer EMI at 7–10% for 3–5 years.

Installation: 3–7 days
Net metering approval: 2–6 weeks

On-grid: No
Hybrid/Off-grid: Yes (battery backup)

• Electricity bill
• Aadhaar (residential subsidy)
• Property ownership proof
• DISCOM registration
• Bank details for subsidy

No. Systems use non-invasive mounts & protect roof from heat/UV damage.