Will my Delhi home's wiring handle 10 kW solar?

10 kW requires a 3-phase connection. Single-phase connections need an upgrade through BSES/TPDDL first — typically 3-4 weeks and ₹15-25k.

How much subsidy do I get on 10 kW solar in Delhi?

PM Surya Ghar caps at ₹78,000 regardless of system size above 3 kW. Delhi adds ₹78,000. Total: ₹1,56,000 — same as 3 kW.

What roof area do I need for 10 kW?

Around 650 sqft of shadow-free roof for 18 × 580 Wp panels. Elevated structures help if you want to keep the area underneath usable.

Does a 10 kW system in Delhi get more subsidy than 3 kW?

No. Central and Delhi subsidies are both capped at 3 kW, so 10 kW gets the same total subsidy as 3 kW. The case for 10 kW is your bill, not the subsidy.

Delhi · Residential · 10 kW

10 kW Solar Panel Price in Delhi (2026)

₹4.74L after ₹156k stacked subsidy. BSES Rajdhani / BSES Yamuna / Tata Power-DDL net metering filed. 18 × 580 Wp panels, ~650 sqft of roof.

BSES rules

Verified 21 Jun 2026 · WhatsApp pricing sheet 2026-06-10 (String+1Ph<=5kW, String+3Ph>=6kW, GST-incl)Verified 18 Oct 2026 · Delhi Cabinet decision 2026-09-02; solar.delhi.gov.in

10 kW rooftop solar system installed in Delhi

10 kW in Delhi means you're past every residential sanctioned-load default and into a 3-phase connection. Eighteen 580 Wp panels need ~650 sqft of clean roof, which is realistic on independent builder floors in South/West Delhi but not on standard 100 sq yd plots. Net metering still applies 1:1 up to sanctioned load under DERC rules, so the payback math holds. PM Surya Ghar caps at ₹78,000 — the marginal panels above 3 kW are unsubsidised, but cost-per-kW drops at this scale so you're still 7-9% better off per kW than a 3 kW system.

Panels

18 × 580 Wp

Roof Area

~650 sqft

Daily Output

40 units

Monthly Saving

₹9,600

at ₹8/unit

10 kW Price Breakdown — Delhi

From gross system cost to what you actually pay.

Gross system cost (10 kW × ₹63,000/kW)

₹6,30,000

− PM Surya Ghar central subsidy

−₹78,000

− Delhi state subsidy

−₹78,000

Net cost in Delhi

₹4,74,000

Payback ~4.1 years at Delhi's avg ₹8/unit residential tariff.

DISCOM Rules

10 kW with BSES Rajdhani / BSES Yamuna / Tata Power-DDL

The discom-specific rules that decide whether your 10 kW system gets approved.

Net Metering Policy

DERC allows 1:1 net metering up to your sanctioned load. Export above sanctioned load is permitted under net-billing, not full net-metering.

DERC Net Metering Regulations, 2014 (amended 2019)

Sanctioned Load Rule

Your rooftop kW cannot exceed sanctioned load without a load-enhancement application to BSES/TPDDL first. We check this before quoting.

Applies to all rooftop sizes including 10 kW

Delhi State Subsidy

Delhi state subsidy of ₹26,000/kW (capped ₹78,000) stacks on PM Surya Ghar, per the notification of 17 Sep 2026. The yearly generation incentive has ended for new installs.

Verified for 10 kW in Delhi

The 10 kW gotcha in Delhi

10 kW needs a 3-phase connection. If you're on single-phase, factor in a ₹15-25k DISCOM upgrade fee.

From our recent installs

Getting 10 kW approved with BSES Rajdhani / BSES Yamuna / Tata Power-DDL

Register on the PM Surya Ghar portal (pmsuryaghar.gov.in) with your CA number and pick your DISCOM.
Sanctioned load check: 10 kW needs at least 10 kW sanctioned load and a 3-phase connection; file the load-enhancement and phase change first.
BSES Rajdhani, BSES Yamuna or Tata Power-DDL gives technical feasibility for 10 kW on your connection.
Installation by a DISCOM-empanelled vendor, then the net-meter application with the installation report.
DISCOM inspection and net-meter fitting; the system is commissioned.
After commissioning, the central subsidy is credited to your bank account through the portal. The Delhi state subsidy is claimed in the same flow under the 17 Sep 2026 notification.

What 10 kW means in Delhi

Both subsidies stop rising at 3 kW, so the 7 kW above that is unsubsidised. 10 kW makes sense only if your bill is high enough to use roughly 1,200 units a month; otherwise the extra panels mostly export at net-metering rates.

Worked example: about 1200 units a month at ₹8/unit saves around ₹9,600 a month. On a net cost of ₹4,74,000, that pays back in about 4.1 years.

Is 10 kW right for your home?

Household profile

Large independent house, builder floor with multiple ACs

Current monthly bill

₹7,500 – ₹12,000

Inverter sizing

10 kVA 3-phase

Roof context: Delhi rooftops are tight: parapet shadows, water tanks and chajja overhangs eat usable area. We design around 200-450 sqft of clean roof.