I'm really not so sure at all about SRL.
Solar on its own isn't sufficient. I like players having a variety of energy related competences and that work with an ecosystem of different generation sources.
Solar is a non programmable energy resource. Blockchain technologies can certainly provide various tools to the solar industry, but the real disruption comes when you cater to Utilities and Transmission System Operators with blockchain based solutions and build a holistic platform in which even traditional generation sources are included and storage and electric vehicles are already taken into consideration. That's where the world is going and very very fast.

I have found only a couple of players which have the team to build such a plan and which are clearly stating they are moving in this direction.
SLR is just focusing on a small segment of the energy market which by the way, is pretty recent and pretty banal... Solar is a very basic technology with very predictable behaviors and even if blockchain can improve a large number of factors it isn't there that we will see the most relevant disruptions.

That's my take