If that's your conclusion when thinking of Africa, might I suggest you get yourself an education? Every major city and town in Kenya is connected to the country's national electricity grid, as are most rural towns. In addition, the Kenyan grid is connected to all other southern African electricity grids via the Southern African Power Pool, allowing them to draw on the additional shared power when needed. Trust me, Google's not going to have to use solar panels to power its Kenyan office.

And yes, part of the reason for this move is to improve the sub-Saharan African localisation of Google's products, especially Google Maps. There is a fairly large Google user base in the region, so the company is keen to improve its service offering and get a foothold in the door early, as all predictions are that internet usage there is going to skyrocket in the next few years even more so than it's doing already.