Little is known about the Nanogenerator, except that it requires nine blueprint fragments, four of which can be obtained by getting the Safe from completing the following difficult tasks: 1. * Fragment #1: Complete Hydro Power Plant in 10 days 2. * Fragment #2: Complete River Bridge in 10 days 3. * Fragment #3: Complete Commercial Port in 10 days 4. * Fragment #4: Complete Eiffel Tower in 30 days Nanogenerator blueprints have been spotted in bonus suitcases when purchasing City Credits, specifically #1 (Pack), #3 and #5 (Bag), #7 and #9 (Truck), and #8 (Barge).