passive solar building
A building that utilizes non- mechanical, non-electrical methods for heating , cooling and/or lighting.
parallel connection
A way of joining two or more electricity-producing devices such as PV cells or modules, or batteries by connecting positive leads together and negative leads together; such a configuration increases the current but the voltage is constant.
P-Type silicon
Semi-conductor grade silicon doped with the element boron giving it a positive bias.
open-circuit voltage (Voc)
The maximum possible voltage across a photovoltaic cell or module; the voltage across the cell in sunlight when no current is flowing.
one-axis tracking
A system capable of rotating about one axis, also referred to as single axis. These tracking systems usually follow the sun from east to west throughout the day.