BIS CRS Certification for Photovoltaic Inverters

BIS CRS Certification for Power Inverters IS 16221 (Part 2):2015 and IS 16169:2019 is necessary to make sure they are safe to use in photovoltaic power systems. UMSPCS Helps you here.

Home bis_crs BIS CRS Certification for Photovoltaic Inverters

Which Indian Standards Apply to BIS CRS Certification for Photovoltaic Inverters?

Apart from converting the direct current electricity generated through the use of solar panels into usable alternating current electricity, the solar inverter should also meet all the required safety and performance standards for it to be reliable in use within a solar power system. When manufacturers want to venture into the Indian market, the first step they have to take is to identify the Indian standard which would help them get the certification.

In order to be able to get BIS CRS Certification for photovoltaic inverters, it is important to know the required safety standards, the category of the inverter, the required testing, and government notifications. The route to be followed in order to be certified will depend on the inverter type, capacity, application, and the regulatory order for the equipment.

The guide has listed the required Indian standards, the certification procedure, required documentation, cost involved, time frames, and requirements for domestic and foreign manufacturers.

What Indian Standards Apply to Photovoltaic Inverters?

The Bureau of Indian Standards (BIS) has created special Indian Standards for photovoltaic power converters and grid-connected inverters; the standards in question cover aspects of inverter safety, islanding prevention, and performance-related testing.

Indian Standard	Scope and Purpose
IS 16221 (Part 2):2015	Safety of power converters for photovoltaic systems - particular requirements for inverters
IS 16221 (Part 1):2016	General safety requirements for power converters used in photovoltaic power systems
IS 16169:2019	Test procedure for islanding prevention measures in utility-interconnected photovoltaic inverters
IS 17980:2022	Maximum power point tracking (MPPT) efficiency of grid-connected photovoltaic inverters
IS/IEC 61683:1999	Procedure for measuring the efficiency of photovoltaic system power conditioners

These standards relate to various technical aspects and should not be regarded as interchangeable certification requirements automatically. The appropriate combination will depend on the inverter category and the pertinent government order.

The official listings maintained by BIS include IS 16221 (Part 2):2015 and IS 16169:2019 in relation to photovoltaic inverters, while the Solar Systems, Devices and Components Goods Order, 2025 also mentions the relevant standards for solar photovoltaic (SPV) inverters.

🎉 Special Offer

~~₹499~~ FREE

Get Your Free Expert Consultation

What Does BIS CRS Certification for Photovoltaic Inverters Entail?

The BIS Compulsory Registration Scheme (CRS) is a conformity assessment system requiring that products that have been notified comply with the relevant Indian Standards and with the registration requirements.

Manufacturers of photovoltaic inverters have to start by working out which regulatory framework applies; the solar inverters may be covered by the framework of the Ministry of New and Renewable Energy (MNRE) for solar photovoltaic systems, devices and components rather than by the general Electronics and IT Goods CRS framework.

The difference is important since the fact that a product is included on a BIS standards list does not in itself mean that it has to get registration under each CRS route.

Before beginning testing or submitting an application, manufacturers should verify:

The precise product category and inverter capacity.
The relevant revisions of the Indian Standards.
The government notice in question and the date on which it was put into effect.

Whether or not the product has to go through BIS registration or some other prescribed conformity procedure.

Which Photovoltaic Inverters Might be Required to Comply?

The requirements that apply will vary depending on the inverter's function and its specifications. Typical product categories are:

Grid-connected solar inverters
Utility-interconnected photovoltaic inverters
Standalone solar inverters
Hybrid solar inverters
High-capacity SPV inverters

Before choosing a standard or laboratory testing programme, the product classification should be confirmed.

Understanding the Solar Systems, Devices and Components Goods Order, 2025

The Solar Systems, Devices and Components Goods Order, 2025 was issued by the Ministry of New and Renewable Energy via notification S.O. 492(E) of 27 January 2025; it took the place of the previous compulsory registration order of 2017, on the conditions set out in the notification.

A later notice, S.O. 3597(E), issued on 5 August 2025, set the implementation of SPV inverters with a capacity over 200 kW to be until 30 June 2026 or until further orders, whichever came first. This temporary arrangement allowed for self-certification on the condition that valid corresponding IEC certificates and reports from accredited testing laboratories were available.

Since the extension date is now over, manufacturers ought to check if a later government order has altered the applicable position before relying on the temporary arrangement.

For covered inverter categories, the 2025 order identifies the following standards:

The relevant standards are IS 16221 (Part 2):2015 and IS/IEC 61683:1999 for the specified inverter category.
The relevant standards for the specified grid-connected inverter category are IS 16221 (Part 2):2015, IS 16169:2019 and IS 17980:2022.
The precise details should be verified by referring to the most recent notification and the product's classification.

Key Technical CRS Requirements for Photovoltaic Inverters

1. Electrical Safety

The safety standard in question looks at the hazards connected with electrical energy, the construction, and the operation. The specific requirements vary according to the inverter design and the applicable standard.

2. Islanding Prevention

The test procedure for islanding prevention features as applied to grid-connected inverters is specified by IS 16169:2019, the procedure covering the circumstances in which an inverter might continue to supply power after the power supply grid has been disconnected.

3. Conversion Efficiency

The efficiency requirements might refer to IS/IEC 61683:1999 or to other relevant performance standards, and the right testing programme will depend on the category mentioned in the relevant order.

4. Maximum Power Point Tracking

Maximum Power Point Tracking, or MPPT, is a method used in solar power systems. It helps get the most power from solar panels by adjusting how the system works as sunlight changes. MPPT controllers check the voltage and current from the panels and tweak the electrical load to make sure the panels work at their best.

How to Obtain BIS CRS Certification for Photovoltaic Inverters

Step 1: Online Registration

You must register on the BIS CRS portal to get your login details and access the application process.

Complete the online registration.

Enter manufacturer details.

Obtain login credentials.

Step 2: Product Testing

Send samples of photovoltaic inverters to a laboratory that is recognized by BIS for testing in accordance with the relevant Indian Standard.

Create a test request when applicable.

Submit product samples.

Obtain the test report.

Step 3: CRS Application Submission

Send in the application together with the required test report and the supporting documents.

Upload the prescribed documents.

Check the details of the product and the manufacturer.

Pay the applicable fee.

Step 4: Application Scrutiny

The BIS examines the application, the test report, and the supporting documents in order to check whether compliance has been achieved.

The documents and test results are checked to confirm their accuracy.

You must answer questions or fix problems.

More information can be asked for.

Step 5: Grant of Registration

When the relevant requirements have been met, BIS will grant registration via the CRS route.

A distinct registration number (R-number) is assigned.

Labelling of products has to comply with the BIS requirements.

The BIS Standard Mark can be used as specified.

6. Marking and Labeling Rules

We guide manufacturers on applicable BIS marking and labeling requirements, including:

BIS Standard Mark

R-Number

Product and packaging information

Label placement and visibility

7. Renewal, Model Inclusion and Continuous Support

Our support can continue after registration through:

CRS registration renewal

Addition of eligible smartwatch models

BIS surveillance support

Guidance on changes in standards and regulations

Documents Required for BIS CRS Certification for Photovoltaic Inverters

The variation in the document checklist depends on the regulatory route in question and the location of the manufacturer. Information that is usually required includes:

Business Registration Certificate - Proof of company incorporation or legal entity
Product Details & Specifications - Complete technical information of the product
Test Reports - Issued by BIS-recognized labs confirming compliance
Trademark Certificate - Proof of brand ownership (if applicable)
Authorization Letter - For authorized signatory or representative
AIR Documents - Mandatory for foreign manufacturers appointing an Authorized Indian Representative

The documents must consistently state the product model, the brand, the place of manufacture, and the rated capacity.

BIS CRS Certification Cost for Photovoltaic Inverters

The amount that has to be paid for BIS CRS Certification of photovoltaic inverters varies according to the relevant certification route and the requirements specific to the product.

Key cost factors include:

Applicable Indian Standard and testing scope
Inverter type and technical specifications
Number of models or variants
Laboratory testing charges
Documentation requirements
Applicable government fees

Category	Total Cost (Excluding GST)
Indian Manufacturer	₹55,000 + GST
Overseas Client	₹90,000 + GST

The inverter category and the appropriate BIS or MNRE requirements should be assessed before the final cost is confirmed.

BIS CRS Certification Timeline in India

The timeline for the certification will vary depending on how ready the documentation is, the availability of the laboratory, the testing requirements, and the regulatory review.

Stage	Estimated Duration
Documentation preparation	5 – 7 working days
Product testing	10 – 15 working days
Application review and approval	7 – 10 working days

The times given are only approximate and will depend on the product and the relevant certification pathway. It is necessary to verify the required procedure before using a standard CRS timeline for photovoltaic inverters.

Call Today!

WhatsApp Now!

Common Challenges for Photovoltaic Inverters to Avoid

Choosing a standard without looking at the product category.
Supposing that each solar inverter takes the same CRS route.
Using test reports that are out of date or standards that have been superseded.
Ignoring the capacity-specific provisions in the government's notifications.
Giving inconsistent model numbers or details regarding the rating label.
Supposing that IEC certification meets the requirements of India.
Failing to check later orders when relying on an expired implementation extension.

A preliminary compliance assessment can be used to identify these problems before laboratory testing starts.

How UMSPCS Can Help with Photovoltaic Inverter Compliance

The selection of the right Indian Standards forms the basis of BIS CRS Certification for Photovoltaic Inverters; including IS 16221 (Part 2):2015, IS 16169:2019, and IS 17980:2022 deal with different parameters related to inverter safety and functionality, with the compliance route being decided based on the particular government order.

In order to begin the testing procedure, you need to ensure that you have identified the category of your product, the applicable standards, and the most current requirements. This will help prevent any unnecessary costs and delays that may arise from incorrect documentation.

Do you plan to certify or import photovoltaic inverters to India?

Contact us now at UMSPCS with regard to the applicable standards, documentation, and compliance route for your product. Also get to know more information about: BIS Certification for Smart Watche.

Conclusion

The Indian smartwatch market offers great opportunities, but in order to enter it manufacturers must understand the relevant product compliance framework.

The standard identified by BIS CRS certification for smartwatches included in the product list is IS 13252 (Part 1): 2010.

Every step in the process, starting with identifying the right model and brand structure, choosing a reputable laboratory, getting the appropriate test report, preparing the documents, submitting the CRS application, and answering any queries from BIS, contributes to a successful registration.

Indian manufacturers should concentrate on providing accurate product documentation and carrying out testing; overseas brands, on the other hand, must also carefully manage the AIR and the related documentation when obtaining BIS certification for foreign manufacturers.

If you intend to manufacture, import, or launch smart watches in India, the optimal moment to assess the BIS CRS Certification for smart watches will be prior to starting commercial production and entering the market.

Can I get some help with obtaining BIS CRS Certification for your Smart Watch?

Connect with UMSPCS to have a compliance assessment and consultation carried out for your product.

Also, get to know more about BIS CRS Certification for IT Power Adaptors.

Frequently Asked Questions (FAQs)

IS 16221 (Part 2):2015 is the Indian Standard related to the photovoltaic inverters, which specifies the safety requirements of photovoltaic inverters. Other standards applicable depending on product and order include IS 16221 (Part 1):2016 and IS 16169:2019.

Is BIS CRS Certification mandatory for all solar inverters?

Not all solar inverters require the certification through the same route. The requirement will depend on the product, its capacity, and current government notification.

The standard provides the requirements of particular safety for power converters used in photovoltaic systems. Specifically, it deals with inverters.

It specifies the test procedures to ensure proper prevention of the phenomenon of islanding in photovoltaic inverters.

Yes, it is. IS 17980:2022 sets out the requirements on the efficiency of the maximum power point tracking for grid-connected photovoltaic inverters.

They can follow the relevant Indian conformity route. They should confirm documentation, testing, representation, and registration requirements for their specific product.

Not automatically; Its acceptability depends on the applicable order, standard, laboratory recognition, and prescribed conformity procedure.

Ready to get your electronics BIS-registered?

+91 7011067811

BIS CRS Certification for Photovoltaic Inverters