Off Grid - having no dependence on the electricity grid at all.

KWh - Kilowatt Hour. A measure of energy based on using 100 watts per hour.

KW - Kilowatt. A unit of measurement of electrical power equal to 1000 watts.

Polycrystalline - a solar cell made of silicon off cuts oriented in different directions.

Monocrystalline. A cell made from a slice of single-crystal silicon, oriented in one direction.

MCS Microgeneration Certification Scheme. A quality assurance scheme certifying solar installers. If you wish to obtain a FIT certificate for your home, you must use a MCS accredited installer.

O & M Operations Maintenance - Ongoing maintenance needs of a solar system including cleaning, repairs, maintenance, monitoring and bill management

Mounting Hardware. The mounting equipment used to secure solar panels to roofs or ground based installations.

PV - Photo Voltaic - the name for the technology that converts sunlight to energy

Interconnection Agreement. The agreement between a home owner and the utility companies allowing them to connect their solar panels to the grid and receive a credit for surplus electricity provided.