IS 16270 BIS Certification for Grid-Tied Solar Inverters
Grid-Tied Solar Inverters made, imported or sold in India must be certified against IS 16270 under CRS registration (Scheme-II). What the standard covers, how testing works and how to get the registration.
About IS 16270
| Standard | IS 16270 |
|---|---|
| Title | Test Procedure of Islanding Prevention Measures for Utility-Interconnected Photovoltaic Inverters |
| Product covered | Grid-Tied Solar Inverters |
| Category | Solar PV Systems & Components |
| Scheme | CRS registration (Scheme-II) |
| Notified under | Solar Photovoltaics, Systems, Devices and Components Goods (Requirements for Compulsory Registration) Order, 2017, S.O. 2920(E), dated 30 August 2017 · Order PDF |
Editions and amendments of IS 16270
| Edition | Published | Status |
|---|---|---|
| IS 16270:2023 Secondary cells and batteries for solar photovoltaic application - General requirements and methods of test | 2 Jan 2024 | Current, next review 1 Jan 2029 |
| IS 16270:2014 Secondary cells and batteries for solar photovoltaic application - General requirements and methods of test | 30 Sept 2014 | Withdrawn 23 Jun 2026 |
Amendments:First Amendment (2025). Test reports must reflect the standard with its amendments.
Testing against IS 16270
Samples are type-tested at a BIS-recognised laboratory in India; foreign lab reports are not accepted. BIS then reviews the test report and documents and grants the registration. Market surveillance samples follow.
The test report has to cover every clause of IS 16270 that applies to the product, in the edition current on the date of testing. When BIS revises IS 16270 or replaces it with a new edition, existing licence holders move to the new edition by the date BIS sets in its notification.
How to get CRS registration under IS 16270
Registration is granted to the manufacturer for a specific factory, brand and models. Overseas manufacturers must appoint an Authorised Indian Representative to apply and hold the registration in India.
- Confirm the Indian Standard and group models into a series
- Submit samples to a BIS-recognised lab in India for testing
- Apply on the CRS portal with the test report, factory and brand documents
- BIS review and grant of the R-number registration
- Mark products with the Standard Mark, IS number and R-number
Timeline. Lab testing usually takes 2 to 6 weeks; BIS processing typically takes another 3 to 6 weeks after a complete application with the test report.
Fees. Application and annual licence fees of ₹1,000 each, a processing fee of ₹25,000 per year, and ₹20,000 for each additional test report, plus lab testing charges (BIS Conformity Assessment Amendment Regulations, 2026).
Mark. Certified products carry the BIS Standard Mark (CRS) with the IS number and the R-number.
Frequently asked questions
What does IS 16270 cover?
IS 16270: Test Procedure of Islanding Prevention Measures for Utility-Interconnected Photovoltaic Inverters. BIS has made certification against it compulsory for grid-tied solar inverters.
Is BIS certification under IS 16270 mandatory?
Yes, for grid-tied solar inverters, under the Solar Photovoltaics, Systems, Devices and Components Goods (Requirements for Compulsory Registration) Order, 2017, S.O. 2920(E). The product needs a valid BIS registration (CRS) and must carry the BIS Standard Mark (CRS) with the IS number and the R-number.
Where is a product tested for IS 16270?
Samples are type-tested at a BIS-recognised laboratory in India; foreign lab reports are not accepted. BIS then reviews the test report and documents and grants the registration. Market surveillance samples follow.
How long does IS 16270 BIS certification take?
Lab testing usually takes 2 to 6 weeks; BIS processing typically takes another 3 to 6 weeks after a complete application with the test report.
Other standards in Solar PV Systems & Components
- IS 14286 Crystalline Silicon Solar Panels (PV Modules)
- IS 16077 Thin-Film Solar Panels (PV Modules)
- IS 16169 Solar Inverters and Power Converters
- IS 16221 Solar Inverters and Power Converters
- IS/IEC 61730 2 products
Source: BIS lists of products under compulsory certification (Scheme-I, Scheme-II), checked October 2026. See the full BIS product list or all Indian Standards.
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