UL integrates DEWI and DEWI-OCC capabilities to provide full-service portfolio

To further meet the growing needs of clients in the dynamic wind energy sector, UL recently acquired the renowned German wind specialists DEWI/DEWI-OCC. With the integration of DEWI services, UL is now able to offer full-service worldwide testing and certification.

From research, wind measurement, energy yields assessment, measurements for mechanical loads, power quality, power performance and validation, to U.S. standards and IEC Type Certification, UL now provides a comprehensive suite of wind sector services. Manufacturers of small and large wind turbines can now come to UL for wide-ranging certification and testing services to reach global markets. Other services, such as internationally recognized energy yields assessments will help project developers design wind farms on a sound footing.

DEWI has been involved in wind research and measurement since 1990 and is well recognized in the wind industry on a global basis. DEWI’s excellent reputation with the underwriting community makes them a natural match with UL’s reputation for quality and integrity. DEWI-OCC’s strong portfolio in Type Certification complements UL’s strength in certifying electrical components and materials. With DEWI as part of our renewable energy portfolio, UL continues to grow our market leadership position in testing, inspection and certification services for this growth industry sector. UL and DEWI also have a shared heritage in advanced technology research and will explore areas to combine research activities in the future.

Jeff Smidt, VP & General Manager, UL Energy and Industrial Systems

For inquiries or further information on UL services for wind energy, please contact Jason D. Hopkins, Business Development Manager, UL Wind Energy at


Revised IPT test method simplifies certification
to UL 1703

In the past, the inclined plane tracking (IPT) test method was a formidable obstacle to certifying PV modules or components with a rated voltage greater than 600V. For instance, while UL 1703 and some other standards allowed for a rated maximum voltage greater than 600V, the acknowledged severity of the IPT test on materials kept products from being tested, or even developed.

Recently, however, UL has devised and approved a revision to the IPT test to more flexibly accommodate a broader range of PV products. Most significantly, the IPT test is no longer conducted at 2500V, but at the actual maximum system voltage. Another revision is that the IPT test is no longer required when the creepage spacing between parts of different electrical potentials is greater than 16 mm. The May 8, 2012 publication of UL 1703 incorporates the updated IPT test.

In addition to revising the IPT test method, UL has recommended raising the rated voltage allowable for PV module and balance of system (BOS) components. Previously, many PV related component standard requirements stopped at 600V, in part due to the relative absence of products over 600V. Meanwhile, some components – and their tests – are not system-voltage dependent, and these will not require modification for a system voltage exceeding 600V.

Revisions to the Inclined Plane Tracking (IPT) Test
•    The IPT test is no longer conducted at 2500V, but at the actual maximum system voltage.
•    The IPT test is no longer required when the creepage spacing between parts of different electrical potentials is greater than 16 mm.

Chris Flueckiger, Principal Engineer Renewable Energy, UL Energy & Industrial Systems

For further information please contact Chris Flueckiger at


UL data security services – from card-embedded chips to the smart grid

A growing area of worldwide concern is data security. Any product that transmits, stores, or otherwise uses encrypted data, passwords or cryptographic keys must ensure that those mechanisms meet national and international standards to offset being a target of espionage or sabotage. To assist customers in protecting their critical information and infrastructure control systems, UL offers a number of data security services.

For instance, the UL Cryptographic and Security Testing Laboratory is NVLAP-accredited to test products to U.S. Federal Information Processing Standard (FIPS) 140-2. These capabilities can be used for network equipment, software and services in the Industrial Control Environment and Critical Infrastructure systems to ensure compliance to national and international standards and specifications.

Another data security service is the GlobalPlatform laboratory operated by UL’s WiSE (Wireless, Interoperability, Payment Security and EMC) business. GlobalPlatform technology facilitates the secure and interoperable deployment and management of multiple applications embedded on secure chip technology, and has already been adopted globally in sectors such as finance, telecommunications and healthcare.

Smart grid technologies, in particular, introduce new security concerns to critical infrastructure, such as the national power grid, as they allow digital and network access to otherwise physically secure facilities. Recently, UL issued a white paper that highlights key vulnerabilities as well as potential technologies and mechanisms to mitigate risks in the electric grid, e.g. network penetration testing, biometrics, intrusion detection, video management systems evaluation, and security audits.

Ken Modeste, Principal Engineer, UL Security and Global Communications

Download the white paper Data Security Concerns for the Electric Grid

For further information on data security risks and related UL services contact Ken Modeste at


UL SU 1973 certification for Sony’s energy storage battery system

Safety standards for rechargeable batteries were historically developed for mobile device use. In recent years, large-format rechargeable batteries are increasingly being considered for new storage applications to support the deployment of smart grid and distributed energy resources.

UL Subject (SU) 1973 was developed to evaluate the safety of large-format batteries. Published in October 2010, UL SU 1973 covers large-format batteries for stationary storage supporting UPS, distributed resources such as solar and wind and for light electric rail substation applications.

Sony’s energy storage battery system is the first such system ever to obtain UL Subject 1973 certification. The Sony IJ1003E system is comprised of two parts: an energy storage module (IJ1001M) and a controller that controls both charging and discharging in addition to storage battery conservation (IJ1002C). In seeking and obtaining UL Subject 1973 certification, Sony shows has shown its commitment to delivering safe energy storage technology to the smart grid industry. 

Priya L. Tabaddor PhD, Director, UL Energy & Industrial Systems

For further information please contact Priya L. Tabaddor at


Two new performance standards complement PV safety standard

While safety standards are important in the purchase decision-making process, buyers and other stakeholders are also concerned with performance. To meet this demand, UL has published a new set of performance standards. The standards are:

•    ANSI/UL 61215, covering design qualification and performance of crystalline wafer modules to generate power after being subjected to a number of defined stressors.
•    ANSI/UL 61646, covering design qualification and performance of thin-film PV modules; the requirements are similar to ANSI/UL 61215 with additional focus on meeting a specified percentage of the rated minimum power after all of the tests have been completed.

The objective of the testing in these new standards is to reliably determine actual power output as well as other electrical and thermal characteristics of modules. In addition, the tests provide an indication that the modules are capable of withstanding prolonged exposure to temperature change.

The newly published standards are equivalent to the IEC version and focus on PV module performance. ANSI/UL 1703 remains the UL standard for PV module safety, with requirements to address electric shock, fire, and mechanical hazards. There are significant differences in intent and requirements between ANSI/UL 1703 and the newly published performance standards, and compliance with the new standards is not a substitute for compliance with the applicable safety requirements.

However, the new standards provide additional, important criteria for standardizing expectations of PV equipment and installed performance. In addition to the initial type testing and design qualification, periodic factory inspections assure PV module construction is the same during production as originally tested.

Scott Jezwinski, Business Development Manager, UL Energy & Industrial Systems

For further information please contact Scott Jezwinski at


UL and CCIC-SET cooperation offers global PV manufacturers improved competitive edge in Chinese market

UL and Shenzhen-based testing institute CCIC-SET have signed a memo of understanding (MoU) to strengthen their cooperation in the field of solar certification. CCIC-SET is one of China’s leading impartial testing organizations with decades of experience certifying electronic, IT, communication, and medical products to over 20 key domestic and foreign accreditations.

Among other advantages, global customers can look forward to profiting from CCIC-SET’s in-depth understanding of China’s PV market as well as facilitated access to the Golden Sun Mark and other essential criteria for success on the Chinese market.

The MoU will also enable UL and CCIC-SET to provide manufacturers with many other levels of support, such as promoting industry development, enhancing competitiveness, and accelerating the pace of products to domestic and foreign markets.

Johnson Zhang, Business Development Director, Greater China, UL Energy & Industrial Systems

Contact Johnson Zhang for further information on UL services available for China at


Visit UL at the following events


Tradition of learning continues under UL Knowledge Services

UL has long provided specialized training and advisory services to customers in the energy industry – in the form of workshops, eLearning, personnel certifications and audits and assessments. These offerings, formerly from UL University, will continue under a new name: UL Knowledge Services.

With the aim of turning knowledge into tangible solutions for customers around the globe, UL Knowledge Services recently expanded the range of its offerings to include training and software in occupational health, wellness, and safety.

For more information on these offerings, including training dates, locations and pricing, or to request a quote for an advisory service, please visit

Patrick Boyle, President, UL Knowledge Services

For further information please contact Patrick Boyle at

UL Verification

UL is not only a global leader in product safety testing and certification but UL‘s involvement in commercial testing, inspection, and audit work is recognized and respected around the world as well.

Today, it is a constant challenge to find cost effective ways to test and inspect products without compromising quality. UL‘s Research & Development (R&D) Testing, Verification Testing, Inspection & Audit Services and our Retailer Services support manufacturing business operations from initial design through prototyping and into final production, while also enhancing retail supply chain quality management operations.

Read More at: UL Verification services

UL Environment

UL Environment is a new source for independent green claims validation, product certification, advisory services and standards development. We‘re here to help manufacturers, their business customers and consumers alike get clarity on what may or may not be a sustainable product.

Read More at: