Test Methods for Solar Energy Kits

VeraSol tests and certifies solar energy kits with solar modules up to a 350-Watt peak. We use the test methods defined in IEC TS 62257-9-5: Laboratory evaluation of stand-alone renewable energy products for rural electrification. They are specifically designed to measure performance, durability, safety, quality of workmanship, lumen maintenance and more.

We conduct all testing according to IEC TS 62257-9-5, but the number of required samples and method for sampling depends on the purpose of the testing:

Initial Screening Method (ISM)
An optional, abbreviated test method that can offer key feedback to the manufacturer and indicate whether or not the product is likely to meet the quality standards.

Quality Test Method (QTM)
The complete test method used to verify comprehensive product quality and performance. Results from QTM testing are used to determine if a product has met the quality standards. QTM results are valid for two years.

Market Check Test Method (MCM)
The MCM is used during Market Check Testing to ensure products sold in the market meet that measured during program entry. The MCM is also used for renewal testing to extend the certification for another two years.

Accelerated Verification Method (AVM)
An optional, alternative certification pathway that is faster than standard QTM testing. The AVM maintains the rigour of certification through a combination of eligibility screening and comprehensive follow-up QTM testing.

Pay-As-you-Go Market Check Test (PAYG - MCT) Method The PAYG - MCT method is used to confirm the basic PAYG functionality of solar energy kits sold in the market if concerns arise regarding the function of a product's PAYG system. The procedure tests features specific to the PAYG system that are only functional in the intended location of use and could not be tested during a typical Market Check Test.

Test results from QTM and AVM are used to determine if a product meets the quality standards and will be certified by VeraSol. Testing is performed by VeraSol’s global network of approved test laboratories.

Test Methods for Solar Appliances

VeraSol uses the Global LEAP test methods for standalone TVs, fans, refrigerators, and solar water pumps intended for use with off-grid solar energy systems, such as solar home system kits or mini-grids. The Global LEAP test methods leverage pre-existing and widely-accepted international test methods, adapted in close collaboration with off-grid professionals and other market, product, and testing experts. These standardized test methods enable consistent product-to-product comparisons.

The Global LEAP test methods primarily cover:

Energy Performance
Energy consumption, efficiency, and other product-specific metrics in nominal conditions and conditions reflective of off-or weak-grid scenarios (e.g. over-and under-voltage, and high temperatures)

Quality & Durability
Quality of service being provided by the appliance (e.g. luminance of a TV) and durability in off-grid conditions (e.g. functionality after voltage fluctuations or drop test)

Safety & Consumer Protection
Product safety (e.g. ingress protection) and consumer-facing information (e.g. warranty and performance claims)

The Global LEAP test methods are used by VeraSol to test and evaluate off-grid appliances. All of the appliances contain in the VeraSol Product Database have been tested according to these test methods.