Tata Power-DDL net metering application

A net-metering connection from Tata Power-DDL is due within 10 days of the net-meter application for a rooftop system up to 10 kW, and within 25 days above that, with no application fee for a domestic system up to 10 kW. Those are the DERC (Net Metering for Renewable Energy) (Second Amendment) Guidelines of 16 July 2026, which Tata Power-DDL hosts on its own website and which bind it exactly as they bind the two BSES boards. The board publishes the net-metering application and manual on tatapower-ddl.com, and the portal opens against the CA number printed on your bill.

Use this guide to confirm you are with Tata Power-DDL, prepare the required documents and follow the seven stages through commissioning. For surplus settlement and the generation incentive, see the Delhi net-metering guide.

Is Tata Power-DDL your board

Tata Power-DDL, in full Tata Power Delhi Distribution Limited, is the electricity distribution licensee for North and North-West Delhi. It is not Tata Power Solar, the installer; you can buy from any registered vendor and still get your meter from Tata Power-DDL.

Confirm the board from the bill, not the locality; the name is printed at the top. Three other items on the bill decide the application: the CA number, the consumer account number the portal logs you in with; the sanctioned load in kW, which caps the size you can apply for without a load change; and the registered mobile number, which receives the one-time password. Correct any of them with the board before you apply.

If the bill says BSES Rajdhani or BSES Yamuna, those pages apply; the finder on the net-metering hub names the board for your area.

Documents to keep ready

The portal sets the final list; this is what every Delhi application has needed.

• The latest electricity bill. Board name, CA number and sanctioned load are read from it, and every number typed into the application must match it.
• Proof that you own the house, such as the registered sale deed or a property tax receipt, in the applicant's name.
• A photo identity document, usually Aadhaar, and a passport-size photograph.
• The registered mobile number, in your hand for the one-time password.
• Bank account details and a cancelled cheque in the applicant's name, uploaded after the commissioning certificate.
• At the plant-details stage, the installer supplies the photographs, serial numbers and safety certificate. Read them before they go in.

The name on the application must be the name on the bill; if the connection is in a parent's name, apply in that name.

The seven stages, and who acts at each

Under the 2026 guidelines, PM Surya Ghar applicants apply through the national portal; everyone else through the DISCOM or state portal. In Delhi, subsidised systems: apply on the PM Surya Ghar portal and claim the Delhi subsidy and GBI on solar.delhi.gov.in; unsubsidised systems: the DISCOM portal. The word after each stage says who owes the next action.

1. 01

   Confirm the licensee and sanctioned load from your billyou

   Read the board name, the CA number and the sanctioned load. A system larger than the sanctioned load needs a load change, which the board handles; since the 2024 amendment no feasibility study is needed up to 10 kW on the same supply type.
2. 02

   Register and apply on the portalyou, with the installer

   With the PM Surya Ghar subsidy, register on pmsuryaghar.gov.in with Delhi, Tata Power-DDL, your CA number and mobile number, then apply and pick a registered vendor. Without the subsidy, use Tata Power-DDL's own net-metering portal, which offers New Application, Resume Draft and Saved Application against your CA number. Either way the application is in your name and on your login.
3. 03

   Feasibility approvalTata Power-DDL

   The board checks the application against its consumer records: name, CA number, sanctioned load, supply type. Up to 10 kW on the same supply type this is a records check rather than a site study. Mismatches with the bill are what stops it.
4. 04

   Installation by a registered vendorinstaller

   Panels, inverter, structure, earthing and the protection boxes. From 1 June 2026 the portal itself warns that only DCR panels and cells are permitted for a subsidised plant. Keep the inverter off until the meter is fitted.
5. 05

   Net-meter applicationinstaller

   The vendor uploads the installation photographs, the module and inverter details with serial numbers and the safety certificate, and applies for the meter. Check that the serial numbers uploaded are the ones on your roof. The 10-day clock starts here.
6. 06

   Inspection and meter installationTata Power-DDL: 10 days up to 10 kW

   The board inspects the plant and fits the bidirectional meter that records import and export. The guideline gives 10 days to connection up to 10 kW and 25 days above.
7. 07

   Commissioning and subsidy claimportal, then you

   The commissioning certificate is generated on the portal once the meter is recorded. You then submit bank details and a cancelled cheque, and the central subsidy is due officially within 30 days of the claim. The Delhi state subsidy and the generation incentive are claimed on solar.delhi.gov.in.

Two details are specific to this board's portal: it logs you in with the CA number, and it carries an eKYC link for a mobile number that does not match the board's record. If the one-time password never arrives, check that first.

The scheme's condition is that the installer must be a vendor registered on the national portal, and you choose the vendor on pmsuryaghar.gov.in. Verde Solaire is a registered PM Surya Ghar vendor in both Delhi and Uttar Pradesh and files the application with you on the survey visit. The nine-step subsidy guide covers the portal from registration to payout.

Fees and timelines: the rule and the practice

Tata Power-DDL publishes no day count of its own; these are the regulator's and the ministry's, with reported practice kept apart.

The subsidy row is "within 30 days" of the claim; about 15 days on average, against reports of 30–45 days after verification in practice. Both counts start at the claim, which follows the meter: a slow meter delays the subsidy, it does not cancel it. The base rules are the DERC (Net Metering for Renewable Energy) Regulations, 2014 and the 2014 Guidelines, as amended in 2024 and 2026.

Not yet official. Reported by trade and news sources; the official figure is within 30 days.

Why applications stall

Most stalled files fail on paperwork, not on the roof. These are the general patterns, as things to check rather than complaints.

• Name mismatch. The applicant's name differs from the bill, or the bank account is in another name. Apply in the bill holder's name.
• Capacity above the sanctioned load. A 5 kW plant on a 3 kW load needs a load change first, or a smaller plant.
• Ownership proof missing or in another name. A tenant, or a child applying on a parent's house, needs the owner's documents.
• Mobile number mismatch. The one-time password goes to the number the board holds; the portal's eKYC notice exists because this is common.
• Incomplete plant details. Photographs missing, serial numbers that differ from the roof, or no safety certificate. Ask to see the upload.
• Non-DCR panels on a subsidised plant. Since 1 June 2026 the cells must be on ALMM List-II; the ALMM explainer sets out what that means for a quote.
• The vendor holding the file. In August 2026 MNRE deactivated 66 PM Surya Ghar vendors over pending applications; vendors are not to hold one beyond 60 days. If a vendor stage has not moved for weeks, ask in writing what is pending and use the vendor check.

The portal help page explains what each status on pmsuryaghar.gov.in means.

Escalation: the helpline, and what we do

Read the stage on the portal and note its date first. Stages 4 and 5 belong to the installer; stages 3, 6 and 7 to the board and the portal.

If the net-meter application is in and the guideline's 10 days have passed, call the board. Tata Power-DDL's net-metering page gives its toll-free numbers as 19124 and 1800-208-9124 and its email as customercare@tatapower-ddl.com. Have the CA number, the portal application number and the date the net-meter application went in. Name the DERC guideline of 16 July 2026 and its day count, note the reference number, and send the same facts by email the same day so that there is a record. Tell your installer too.

For our own installations, we file the net-meter application as soon as the plant is up, attend the inspection, and tell you where the file stands without being asked; where a board is past its guideline we say so in writing, with the guideline quoted. Arun Sibal, a New Delhi customer whose meter came from BSES rather than Tata Power-DDL, wrote that "Verde people always kept me in the loop regarding the net meter status." We do not print a response-time promise, because none has been published. The installed but not activated guide covers the same situation on every board.

Shared roofs: virtual net metering

A flat or a builder floor without roof rights cannot use ordinary net metering. In Delhi, the Seventh Amendment of 20 January 2026 opens virtual net metering to all Delhi consumers, with DISCOMs bearing line and network costs up to set caps. Tata Power-DDL hosts the Seventh Amendment with the rest; the caps and the form are in it, not here. Read solar on builder floors and shared roofs before you plan around it.

Print this checklist

• Bill in hand: board name reads Tata Power-DDL; CA number; sanctioned load in kW; registered mobile number.
• System size at or below the sanctioned load, or a load change applied for first.
• Ownership proof, photo ID and photograph; name identical to the bill; bank account in the same name; cancelled cheque.
• Registered on pmsuryaghar.gov.in (subsidised) or the Tata Power-DDL portal (unsubsidised); application number saved.
• Vendor checked on the portal's registered list before any advance is paid; panels and cells on ALMM List-II if subsidised.
• After installation: photographs, serial numbers and safety certificate seen before upload; net-meter application date noted; inverter off until the meter is fitted.
• Day 11 with no meter: call 19124 or 1800-208-9124, email customercare@tatapower-ddl.com, tell the installer.
• After the meter: commissioning certificate; bank details and cheque submitted; Delhi subsidy and generation incentive claimed on solar.delhi.gov.in.
• Copies kept of the bill, application, quote, receipts, feasibility approval, plant-details upload, inspection report and commissioning certificate.