Not on its own, but then its not the only value stream that comes from a solar array; you obviously get your power to use as you wish, and the grid pays you for your exported power, and you probably get some government incentive, and you get a warm fuzzy feeling from not wreaking havoc on the planet.

When I bought my solar PV system, the decision was very much a risk based excercise, Solarcoin just serves to reduce that risk as an additional support mechanism. As the price of SLR increases then the amount of risk it offsets in that decision process becomes larger.