Regenerative Solar Grading:

“Regenerative Solar Grading” doesn’t refer to a well-established or widely recognized concept or technology. It’s possible that new developments or terminologies have emerged since then, or it might be a specific term used in a particular context or industry that wasn’t widely known at the time.

If it’s related to renewable energy and solar technologies, there are various innovations and advancements continually occurring in the field. “Regenerative” often implies a process that restores or replenishes, so it could potentially refer to a solar technology that has some form of regenerative capability, possibly in terms of energy storage or efficiency.

For the most accurate and up-to-date information, I recommend checking recent publications, research papers, or industry news related to solar energy and technology. You can also provide more context or details if you have specific information or if the term is associated with a particular field or industry.