Power and renewables

Meet Tara Doyle...

With over 15 years in the energy industry, Tara is one of our leading solar experts, focused on business development and project management for our PV Energy Labs. She has experience in performance and reliability testing across a suite of PV equipment, including modules, inverters, energy storage and mounting systems.

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Did you know?
Solar photovoltaic (PV) will grow rapidly in the coming years to represent about 36% of world primary energy supply in 2050. You can learn more in our Energy Transition Outlook.

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Please click the link below to get in touch

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Expert Story - Tara Doyle - subtitled

Providing independent, consistent module reliability data
Since 2014, the experts in our PV Energy Labs (PVEL) have produced the PV Module Reliability Scorecard based upon the results from DNV GL’s Product Qualification Program (PQP). The PQP and resulting Scorecard are voluntary programs that allow PV module manufacturers to demonstrate the reliability and durability of their modules to the global industry, and to provide PV equipment buyers and power plant investors with independent and consistent module reliability data. Through the PQP, DNV GL has tested over 300 bill of materials (BOMs) for more than 50 manufacturers, including nine of the top ten global module manufacturers and over 70% of the latest Bloomberg New Energy Finance ‘Tier 1’ manufacturers list.

Rapidly changing and evolving PV technology is catapulting our industry into exciting but unchartered territories. It’s important that developers and investors perform the necessary diligence to ensure their PV plants will last the expected lifetimes. Conducting diligence on the potential modules, inverters, storage and mounting systems, and selecting PV products that have performed well in DNV GL testing can have a significant and positive impact on performance, and ultimately the projects’ economics, over the plant’s lifetime.
Tara Doyle,
  • Head of Section of the PV Module Test Laboratory
  • DNV GL

Our PVEL team has released the fourth edition of the PV Module Reliability Scorecard, which is the most comprehensive publicly available comparison of PV module reliability test results. This year’s report found that the reliability and durability of modules submitted to DNV GL for testing generally improved in several of the test categories.

Our PV Module Reliability Scorecards

Explore all our editions




DNV GL and Renewables
DNV GL delivers world-renowned testing and advisory services to the energy value chain including renewables and energy management. Our expertise spans onshore and offshore wind power, solar, conventional generation, transmission and distribution, smart grids, and sustainable energy use, as well as energy markets and regulations. Our experts support customers around the globe in delivering a safe, reliable, efficient, and sustainable energy supply.

Some of the things with which Tara can help you:

  • Testing services for PV modules, inverters, energy storage and mounting systems
  • Becoming an upstream or downstream participantof DNV GL’s Product Qualification Program
  • Insights into performance and reliability of PV modules

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Energy Transition Outlook 2018

Click here to download our global and regional forecast of the energy transition to 2050