You might think that the unit "(mega)people" is standardized, but in fact there's still quite a difference between an American person and an African person [a bit like swallows, I guess.] Concretely, an American uses 12,954 kWh per year, while an average Moroccon uses 875 kWh. Thus, the electricity used by 1.1M Moroccons equals the electricity used by 70 thousand Americans. So, while the unit might sound like everyone can relate to it, it's pretty horribly inaccurate.
The Computerworld article doesn't even give total expected production, only MW capacity, which is probably peak capacity, ie only achieved during the day. Wiki  gives a production of 370 GWh per year, which is enough to provide energy to just over 400 thousand Moroccans, consistent with providing juice for 1.1M is capacity is roughly tripled. However, if Moroccans start getting up to first-world levels of energy use, the number of people served will swiftly drop by an order of magnitude, even if they don't go all the way to American energy use (e.g. Holland has about half the US energy use, probably due to less need for airco and higher electricity costs)
The water use sounds very problematic, according to wiki it uses 1.7 million m3 per year or 4.6 liters per kWh . To compare, desalination requires 3 kWh/m3, i.e. it would cost about 5GWh to desalinize the amount of water used annually, compared to 370GWh of electrticity produced. So, even if the water draw is compensated by desalinizing water elsewhere, it still comes out ahead.