Whether it is subsidized or not, having a big solar plant go online is great progress.
Sometimes progress is expensive, and sticking with old ways is the cheapest way to go. But in the long run, burning more coal and gas, and importing more oil will get us deeper into trouble, whether it is economically or environmentally.
I drive a dual mode (electric/gas) vehicle for those reasons. It was not the cheapest car I could get, but it sure helps curb the oil import imbalance. The surprising thing is that it is proving to be quite economical, and in several more years is likely to prove the most inexpensive to operate car I could have bought. (It costs me 2 cents a mile in electric mode, which is most of the time.)
I hope the long-term proves to be just as smart for the new solar facility.