Can 3D solar energy be used for terawatt-scale generation?

Self-supporting 3D shapes can create new schemes for PV installation and the increased energy density can facilitate the use of cheaper thin film materials in area-limited applications. Our findings suggest that harnessing solar energy in three dimensions can open new avenues towards Terawatt-scale generation.

Can solar energy be harnessed in three dimensions?

Our findings suggest that harnessing solar energy in three dimensions can open new avenues towards Terawatt-scale generation. Fig. S1 (a) Tested trajectory (red dots) re-scaled by a factor of 200,000. The wall is shown in green, and the mirrors indicated by the arrow.

Can a three-dimensional photovoltaic array improve solar energy performance?

Two small-scale versions of three-dimensional photovoltaic arrays were among those tested by Jeffrey Grossman and his team on an MIT rooftop to measure their actual electrical output throughout the day. Intensive research around the world has focused on improving the performance of solar photovoltaic cells and bringing down their cost.

Can 3D photovoltaic structures increase energy density?

We recently employed computer simulations (ref. 5) to show that 3D photovoltaic (3DPV) structures can increase the generated energy density (energy per footprint area, kWh/m2) by a factor linear in the structure height, for a given day and location.

Why do 3D solar panels cost more than flat panels?

While the cost of a given amount of energy generated by such 3-D modules exceeds that of ordinary flat panels, the expense is partially balanced by a much higher energy output for a given footprint, as well as much more uniform power output over the course of a day, over the seasons of the year, and in the face of blockage from clouds or shadows.

What forces are involved in maximizing energy generation in 3D?

The two main forces operating during the maximization of energy generation in 3D are the avoidance of inter-cell shading and the optimization of the re-absorption of light reflected by other cells, with an intricate trade-off (dependent on the Sun’s trajectory) typical of complex systems.