Perhaps Solar coin currency/tokens can be purchased by socially conscious companies to offset their energy usage. In US, there was this cap and trade policies for manufacturing companies being talked about in the previous federal administration. I have also seen in some airline online web sites an option to buy green credits to offset the air travel. I thought SolarCoin can fill in those needs.
It's an interesting idea. There could be some mileage buying SLR as some kind of offset mechanism. I'm always suspicious of offsets (emitting CO2 then taking it out seems a roundabout way of not putting it there in the first place) but there could be a significant group of SLR 'buyers' if people were to offset with it.