D2solar: a one-of-a-kind engineering services company, specializing in photovoltaic technologies
Since 2010, D2solar has helped companies bring their solar innovations to market, from concept stage to fully qualified commercial products.
Serving as a dedicated extension of our clients' teams, we have earned the trust of over 100 companies with unmatched expertise and speed.
From start to finish
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Getting it right
Design & Engineering Validation
From product concepts to design tradeoffs, to selecting the right materials, your secret sauce is safe with us.
Test early, test often
Reliability Validation
Don’t let reliability issues keep your goals out of reach. Count on our expertise in lifetime prediction and certification.
From 1 to 1 Megawatt
Manufacturing Validation
We help our clients navigate the challenges of pilot manufacturing, design qualification and supply chain development.
Megawatts and beyond
Product Release
With in-house capacity up to 2MW, we are equipped to scale your product and help you transfer to a low-cost environment safely.
Put our expertise to work at every stage
From start-up to enterprise
Whether solar technology is your product, or just part of it, our industry-leading expertise and capabilities will help you get to market faster.
We work with a broad range of companies in these spaces:

  • Materials
  • Cell and modules
  • Building Integrated Photovoltaics
  • Consumer electronics
  • Automotive, marine, aviation and space applications
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With state-of-the-art equipment you won't find anywhere else, we have the capabilities for your success.
From measuring line width to quantum efficiency, our characterization lab supports cell, material and module technologies.
Capable of both conventional and advanced cell designs, our 600 per hour tabber-stringer feeds our 10MW production laminator.
From thermal shock to HAST, our extreme environmental chambers will test your reliability at every stage and for every application.
Our flash testers, imaging cameras and thermal performance equipment can determine how your panels will perform in all environments and conditions.
It's time to bring your ideas to market