BIS CRS Registration for Utility-Interconnected Photovoltaic Inverters – IS 16169:2019

BIS CRS Registration for Utility-Interconnected Photovoltaic Inverters – IS 16169:2019

The increasing adoption of solar energy in India has created a growing demand for safe, reliable, and compliant photovoltaic (PV) equipment. Utility-interconnected photovoltaic inverters are a critical component of solar power systems because they convert DC electricity generated by solar panels into AC electricity that can be supplied to the utility grid.

To ensure that these products meet the required Indian safety and performance standards, manufacturers and importers may need to obtain BIS Registration under the Compulsory Registration Scheme (CRS). Utility-interconnected photovoltaic inverters are covered under IS 16169:2019, making BIS compliance an important consideration for businesses manufacturing or importing these products for the Indian market.

What is BIS CRS Registration?

The Bureau of Indian Standards (BIS) operates the Compulsory Registration Scheme (CRS) for various electronic and IT products. Under this system, specified products must conform to the applicable Indian Standard and obtain BIS registration before they can be manufactured, imported, stored for sale, or sold in India, where the applicable notification requires registration.

BIS CRS registration demonstrates that the applicable product has been tested according to the relevant Indian Standard and meets the prescribed requirements.

For utility-interconnected photovoltaic inverters, the applicable standard is:

IS 16169:2019 – Utility-interconnected photovoltaic inverters – Test procedure of islanding prevention measures

What is IS 16169:2019?

IS 16169:2019 specifies test procedures related to islanding prevention measures for utility-interconnected photovoltaic inverters.

Islanding can occur when a portion of an electrical distribution network becomes electrically isolated from the main utility grid while distributed generation, such as a PV system, continues supplying power to the isolated section.

Effective islanding prevention is important because unintended islanding can create safety risks for utility personnel, affect power quality, and potentially damage electrical equipment.

The standard therefore provides requirements and test methods for evaluating the inverter's ability to detect abnormal grid conditions and prevent unintended islanding.

Why is BIS Registration Important for PV Inverters?

BIS compliance provides several important benefits to manufacturers, importers, and other businesses involved in the Indian market.

1. Regulatory Compliance

Obtaining the required BIS registration helps businesses comply with applicable Indian regulatory requirements for products covered under the CRS framework.

2. Product Safety

Testing against the applicable Indian Standard helps establish that the product meets specified technical and safety requirements.

3. Market Access

Where BIS registration is mandatory, manufacturers and importers need the appropriate registration before legally placing the covered product on the Indian market.

4. Customer Confidence

BIS registration can provide customers, distributors, EPC companies, and other stakeholders with greater confidence in the conformity of the product.

5. Better Business Opportunities

BIS compliance can be important when participating in procurement processes, supplying solar projects, or working with large organizations that require regulatory documentation.

Who Needs BIS CRS Registration?

The requirement depends on the applicable BIS notification and product classification. Businesses that should assess their compliance obligations include:

• Indian manufacturers of utility-interconnected PV inverters

• Foreign manufacturers supplying PV inverters to India

• Importers of covered products

• Brands and companies marketing covered products in India

• OEM/ODM businesses supplying products under another brand

• Solar equipment manufacturers and suppliers

Foreign manufacturers generally need to work through an appropriate Indian representative and fulfill the applicable BIS requirements.

BIS CRS Registration Process for PV Inverters

The registration process generally involves the following steps:

Step 1: Identify the Applicable Standard

First, determine whether the product falls within the applicable product category and whether IS 16169:2019 applies to the specific inverter.

Product specifications, rated capacity, intended application, configuration, and other technical characteristics should be reviewed carefully.

Step 2: Select a BIS-Recognized Laboratory

The product is tested at a laboratory recognized by BIS for the applicable requirements.

Testing may include the prescribed tests related to the inverter's islanding prevention functionality.

Step 3: Product Testing

The manufacturer provides representative product samples and the necessary technical information to the laboratory.

The laboratory conducts the applicable tests according to the relevant standard and prepares a test report.

Step 4: Prepare BIS Documentation

The applicant needs to prepare the required documentation. Depending on the application, documents can include:

• Test report
• Manufacturer details
• Product technical specifications
• Model and product details
• Brand/trademark information
• Factory information
• Authorization documents
• Indian representative details, where applicable
• Product photographs and labels
• Undertakings and declarations
• Other documents required by BIS

Step 5: Submit the Application

The application and supporting documents are submitted through the applicable BIS registration process.

BIS reviews the application and supporting information.

Step 6: BIS Review

BIS may review the test report, product details, labeling information, manufacturer information, and other submitted documents.

If clarification or additional information is required, the applicant may need to respond accordingly.

Step 7: Grant of Registration

Once the applicable requirements are satisfied, BIS registration is granted for the relevant product/manufacturer combination.

The registered product must then comply with applicable BIS requirements, including labeling and marking requirements.

Documents Required for BIS CRS Registration

The exact documentation can vary depending on the product and applicant. Common documents may include:

Technical Documents

• Product datasheet

• Technical specifications

• Circuit diagrams, where required

• User manual

• Product photographs

• Model numbers

• Rating information

Manufacturer Documents

• Factory details

• Manufacturing address

• Manufacturer authorization documents

• Brand ownership or authorization documents

Testing Documents

• Applicable laboratory test report

• Sample details

• Test configuration and relevant technical information

Applicant Documents

• Company registration details

• Authorized signatory information

• Indian representative details for foreign manufacturers, where applicable

It is important to ensure that the information in the application, test report, product label, and technical documentation is consistent.

BIS Marking and Labeling

After registration, the product and its packaging/documentation must comply with the applicable BIS marking and labeling requirements.

Businesses should ensure that:

• The correct BIS registration details are displayed where required.

• Model identification is consistent with the registration.

• Manufacturer information is accurate.

• Product ratings and other mandatory information are properly provided.

• The BIS Standard Mark is used only in accordance with applicable requirements.

Incorrect or incomplete labeling can create compliance issues even when the product itself has successfully completed testing.

Important Points for Foreign Manufacturers

Foreign manufacturers planning to supply utility-interconnected PV inverters to India should review BIS requirements before shipment.

Particular attention should be given to:

1. Selecting the correct Indian Standard.

2. Identifying the appropriate product models.

3. Testing representative samples.

4. Maintaining consistency between the test report and commercial product.

5. Providing the required Indian representative information.

6. Following applicable labeling requirements.

7. Ensuring that any product modification is evaluated for its impact on BIS registration.

Early compliance planning can help prevent delays in product launches and imports.

Common Challenges in BIS Registration

Businesses often face difficulties because BIS registration involves both technical and regulatory requirements.

Some common challenges include:

Incorrect Standard Identification

A product may appear to fall under one standard while its specific configuration or intended application may require consideration of additional requirements.

Test Report Issues

Incomplete testing, incorrect model identification, outdated reports, or testing from an unsuitable laboratory can result in additional queries or delays.

Model and Variant Management

Manufacturers frequently have multiple inverter models and variants. Determining which models can be covered under a particular registration requires careful assessment.

Labeling Errors

Differences between the registered product information and actual product labels can lead to compliance problems.

Documentation Gaps

Missing authorization letters, manufacturer information, technical documents, or declarations can delay the application process.

How a BIS Consultant Can Help

Working with an experienced BIS consultant can simplify the registration process.

A consultant can assist with:

• Product and standard applicability assessment
• BIS registration strategy
• Laboratory coordination
• Test report review
• Documentation preparation
• Application submission
• BIS query resolution
• Product labeling guidance
• Model and variant assessment
• Post-registration compliance support

Professional assistance is particularly useful for foreign manufacturers and companies launching multiple PV inverter models in India.

Conclusion

BIS CRS Registration for Utility-Interconnected Photovoltaic Inverters under IS 16169:2019 is an important compliance consideration for businesses supplying applicable PV inverter products in India.

By identifying the correct standard, conducting testing through the appropriate laboratory, preparing accurate documentation, and following BIS registration and labeling requirements, manufacturers and importers can establish a smoother path toward regulatory compliance and market access.

If you manufacture or import utility-interconnected photovoltaic inverters, it is advisable to evaluate the applicable BIS requirements before manufacturing or importing the product for the Indian market.

Need Assistance with BIS Registration?

Our BIS consultants can assist manufacturers, importers, and foreign companies with BIS CRS registration for photovoltaic inverters, including standard applicability, product testing, documentation, application submission, and compliance support.

Contact us today to discuss your BIS registration requirements for IS 16169:2019.