VeraSol works closely with market actors to help them make, source, and support quality off-grid solar solutions.
We define how product quality is measured, providing a common language for making performance claims.
We help determine and set the baseline level of product quality for consumer protection.
We standardize off-grid appliance testing, enabling consistent product comparisons.
We certify products that meet international standards through independent evaluation.
We improve global testing capacity through laboratory training and knowledge dissemination.
We generate comparable data to showcase quality products and drive faster decisionmaking.
We assist governments in the development and adoption of standards and policies.
We communicate to the market about the importance and need for quality assurance.
An effective quality assurance program catalyzes off-grid solar markets and brings power to the world’s most vulnerable communities by delivering quality products that perform as advertised.
By prioritizing quality, all sector actors can help build a competitive global market where durable, high-performing off-grid solar solutions are the default option.
Quality assurance helps catalyze off-grid solar markets and bring reliable energy services to the world’s most vulnerable communities through high-performing products.
VeraSol's trusted, rigorous, and widely-applicable quality assurance program supports a wide range of stakeholders, from manufacturers to consumers.
Signal your commitment to quality, gain entry into key markets, and attract the attention of professional buyers.
Millions of people around the world have benefited from using certified solar energy kits.
Help shape the QA program! VeraSol regularly aggregates feedback from a diverse range of stakeholders. We use this information to inform our policies and procedures.
An evolution of Lighting Global Quality Assurance, VeraSol supports high-performing, durable off-grid solar products that expand access to modern energy services.
VeraSol is an evolved quality assurance program that builds upon the rich history of Lighting Global Quality Assurance.
The VeraSol team holds a rich technical and programmatic background in quality assurance coupled with a commitment to provide neutral, high-quality service to the sector.
VeraSol brings together a diverse network of organizations, institutions, and programs to improve the quality and availability of modern off-grid solar solutions worldwide.
VeraSol builds global testing capacity to evaluate off-grid solar solutions and generate high-quality test data.
VeraSol maintains a growing library of resources on off-grid solar quality assurance. Browse our publication library, view previously certified products, and explore frequently asked questions about our program and core services.
Publications, Technical Notes, policies, and resources about off-grid solar quality assurance.
Learn more about VeraSol, the testing or certification process, and how to use our Product Database.
A complete list of products that were supported by VeraSol, but no longer have active certification letters.
View hundreds of independently tested and certified off-grid solar solutions.
The off-grid market, while nascent, is evolving quickly. Many sector stakeholders need guidance on how to evaluate products and define key performance metrics for a growing number of solar solutions. Appropriate and widely-accepted test methods benefit everyone. They are essential for assessing product performance and producing comparable and robust product data. VeraSol designs test methods specifically for off-grid solar solutions and aligns them with internationally recognized test methods when available.
Test methods are the first component of a quality assurance framework. Test methods define a standard set of processes that evaluate products of a given type. They enable test labs, manufacturers, and others to assess product performance and produce test results that are consistent, comparable, and repeatable. The test methods used by VeraSol are developed using a rigorous process in consultation with industry stakeholders and international standardization bodies to support all market actors and avoid biases.
Learn more about VeraSol’s stakeholder engagement process on test methods.
Test their products with VeraSol or align their in-house test methods with ours to accurately assess and benchmark product performance.
Expand their testing capacity by receiving training on the test methods and technical support from our team of experts.
Utilize VeraSol’s established test methods or work with our team to develop new test methods that help keep sub-standard products out of the market.
VeraSol tests and certifies solar energy kits with solar modules up to 350-Watt peak. The test methods we use are defined in IEC TS 62257-9-5: Laboratory evaluation of stand-alone renewable energy products for rural electrification. They are specifically designed to measure aspects such as 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 full 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 rigor of certification through a combination of eligibility screening and comprehensive follow-up QTM testing.
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.
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 PerformanceEnergy 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 & DurabilityQuality 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 ProtectionProduct 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.
The test methods for solar energy kits can be purchased through the IEC website and the Global LEAP off-grid appliance test methods are available through the VeraSol website. Please contact us if you would like to learn more about the test methods or are interested in developing new test methods for off-grid solar products.
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