Patent attributes
Methods and systems for mounting an array of photovoltaic modules atop a rooftop are disclosed. In particular the mounting hardware includes a photovoltaic module tray supported above the rooftop by a number of support structures fastened to the rooftop. The photovoltaic module trays include bottom and sidewalls configured to support and align photovoltaic modules along the rooftop. Since the bottom wall supports the weight of the photovoltaic module, the sidewalls can have a thin form-factor that allows the photovoltaic modules trays to be tightly spaced. In this way, the photovoltaic module tray can occupy very little area on the roof allowing the effective collection area of photovoltaic modules supported by the photovoltaic module trays to be significantly larger than photovoltaic modules using wider photovoltaic module frames.