100 kW reference
₹23,000/kW
≈ ₹23 lakh ex-GST for a qualifying CAPEX rooftop

CAPEX rooftop solar for factories in Kundli, Rai, Barhi and the KMP belt. Sonipat is UHBVN territory, so applications, approvals and metering run through UHBVN's portal rather than DHBVN's.
100 kW reference
₹23,000/kW
≈ ₹23 lakh ex-GST for a qualifying CAPEX rooftop
500 kW reference
₹22,000/kW
≈ ₹1.1 crore ex-GST; scale lowers per-kW cost
Power distribution company
UHBVN
Uttar Haryana Bijli Vitran Nigam (Sonepat operation circle)
Industrial areas covered
6 areas
HSIIDC Industrial Estate, Kundli, HSIIDC Rai Phase I (Sector 38), HSIIDC Rai Phase II (Sector 4)
A 100 kW CAPEX rooftop system for a Sonipat factory costs about ₹23 lakh (₹23,000/kW) excluding GST with Sun Wave, and a 500 kW system about ₹1.1 crore (₹22,000/kW). Sizes in between are priced progressively, and the final quote follows a site survey of your roof, load and UHBVN connection.
Where we work
About 1,539 plots and 641 producing units (2015-16 district profile).
About 1,359 plots and 1,047 producing units (2015-16 district profile).
About 418 plots on 365 acres (2015-16 district profile).
About 740 plots across 606 acres (2015-16 district profile).
State-listed sectoral parks.
HSIIDC industrial township of about 3,300 acres on the KMP Expressway.
Who we build for
Kundli's cluster of about 92 units runs metal-working loads through day shifts.
Rai's printing cluster of about 125 units runs presses and corrugators all day.
Mega Food Park units have chilling and packing loads that suit daytime solar.
Moulding, extrusion and machining loads are energy-intensive.
Grid rules
Under HERC's 2021 rooftop regulations, net metering is allowed up to 500 kW or your sanctioned load / contract demand, whichever is lower. Larger plants can use gross metering up to contract demand. Consumers drawing open-access power cannot also net-meter.
Source: HERC Rooftop Solar Regulations 2021Since HERC's 2nd Amendment (October 2025), surplus credits carry forward within a 1 October – 30 September settlement period. Credits left at the end are bought by the DISCOM at 90% of the feed-in tariff, so size the plant for daytime self-consumption.
Source: HERC 2nd Amendment, DHBVN circular D-23/2025HT industrial supply (above 50 kW) pays ₹6.95/kVAh at 11 kV and ₹6.85/kVAh at 33 kV, plus ₹290/kVA/month of contract demand. Electricity duty, municipal tax and FSA are extra. There is no solar-hour rebate in the FY2026-27 schedule.
Source: HERC tariff order 25 Mar 2026 (DHBVN circular D-06/2026)UHBVN runs its own rooftop portal (solarconnection.uhbvn.org.in). HERC rules require feasibility within 15 days and a Letter of Approval within 22 days; plants above 20 kWp also need a safety certificate from the Chief Electrical Inspector before commissioning.
Source: UHBVN rooftop solar FAQConsumers with 100 kW or more of contract demand can buy green power through open access; since 2025 several connections in the same operation division can be clubbed to reach 100 kW. FY2026-27 HT charges include ₹0.73/kWh wheeling and ₹1.45/kWh cross-subsidy surcharge.
Source: HERC GEOA amendment 2025; DHBVN circular D-06/2026Worked example
| Item | Value | Basis |
|---|---|---|
| System cost | ₹23,00,000 | 100 kW × ₹23,000/kW, ex-GST (Sun Wave reference) |
| Year-1 generation | 1,20,000 units | 100 kW × 1,200 kWh/kWp/year (Delhi Solar Policy, 2nd Amendment 2026) |
| Grid energy charge avoided | ₹6.95/kVAh | HT industrial energy charge at 11 kV, FY2026-27 (HERC FY2026-27 order (DHBVN circular D-06/2026)) |
| Year-1 saving | ≈ ₹8,34,000 | 1,20,000 × ₹6.95 |
| Simple payback | ≈ 2.8 years | System cost ÷ year-1 saving |
Illustrative only. Assumes the factory uses all solar output during working hours and counts the energy charge alone, treating one kVAh as one kWh (unity power factor). It excludes GST, demand charges, surcharges, panel degradation, O&M and financing. Your actual payback depends on your tariff category, load profile and roof. Try the solar savings calculator with your own bill.
Local context
UHBVN serves Sonipat through its Sonepat operation circle, with separate SDO offices for Kundli, Rai, Murthal and Industrial Area Sonipat — net-metering applications go to UHBVN, not DHBVN.
Source: UHBVN Sonipat contact directoryKundli and Rai Phase I together held about 2,900 HSIIDC plots and roughly 1,700 units in production in the 2015-16 district profile.
Source: DC-MSME Sonipat profile 2015-16Sonipat is in the National Capital Region, so CAQM Direction No. 76 applies: diesel DG sets may run only as backup, and older sets of 41–800 kW need dual-fuel kits or certified emission-control retrofits. Rooftop solar cuts the daytime units a DG set or the grid has to supply.
Source: CAQM Direction No. 76 (as amended 2024)UHBVN (Uttar Haryana Bijli Vitran Nigam) serves Sonipat through its Sonepat operation circle, with separate SDO offices for Kundli, Rai, Murthal and Industrial Area Sonipat. Rooftop solar net-metering applications therefore go to UHBVN, not DHBVN.
Apply on UHBVN's solar portal, solarconnection.uhbvn.org.in. HERC rules require UHBVN to decide feasibility within 15 days and issue a Letter of Approval within 22 days, after which you have 180 days to install; plants above 20 kWp also need a Chief Electrical Inspector safety certificate.
Sun Wave's reference price is ₹23,000/kW excluding GST at 100 kW, about ₹23 lakh, and ₹22,000/kW at 500 kW. The final price follows a site survey, and net metering is allowed up to 500 kW or your contract demand, whichever is lower.
Yes. Sonipat is an NCR district, so CAQM Direction 76 allows DG sets only as backup, and most older diesel sets need dual-fuel kits or certified emission-control retrofits. Rooftop solar reduces the daytime units those sets or the grid must supply.
Two quick steps — most of it is just tapping. Our engineers come back within 24 hours with a custom design and savings estimate.
Whether you run a factory, warehouse, or commercial facility - we have the perfect solar solution. Our team will design a system tailored to your energy needs and budget.