Actually, that would have been really bad... AC power is safer and much more efficient. If we were running DC we would lose so much power to heat in the power lines that we wouldn't get any power where we needed it. DC is only good for short distances, that is why in big solar arrays they do not run all of the panels together and then to an inverter, they have an inverter for every few panels because you lose power so much faster with DC.
But, how long is it going to be daylight with enough brightness to produce power? What about cloudy days? The shorter the day, the less power you would produce but the more you would need (shorter days = winter = colder temps) so you have to budget the entire thing to the shortest day of the year and have enough battery to handle a day or 2 without sun in case it rains.
Not trying to be a downer, but I have had several classes in alternate energy and a few classes dedicated to solar specifically so I know what goes into designing an array for your needs.