The US energy secretary announced details of the Department of Energy's SunShot initiative to reduce the cost of photovoltaic solar energy systems by about 75% by 2020, to $1 a watt.
SunShot will focus on four areas:
- Technologies for solar cells and arrays that convert sunlight to energy;
- Electronics that optimize the performance of the installation;
- Improvements in the efficiency of solar manufacturing processes;
- Installation, design and permitting for solar energy systems.