This must be the denomination of photovoltaics. Could anything be more out of tunedness with its time?
Put up money great, now; earn money slowly, later.
Put up money great, now; make almost chargeless electricity, later.
Put up money great now, decrease CO2 later.
Operate now, sit on your honours, later.
Even badly: sponsor now, decrease prices for later.
So many points about PV assume the shape: settle accounts of a great amount now (put up money, energy, CO2), raise money slowly but in a great way, later:
Reward(t) = Slow payback(t) – One Big, Up-front Cost