Insolation

The amount of solar radiation energy received on a given surface area during a specific time, crucial for calculating the potential output of a Solar Roof system.

Hybrid System

A solar power system that combines Tesla Solar Roof tiles, Powerwall batteries, and a grid connection to provide flexible energy management.

Ground Fault

An unintentional electrical path between a power source and a grounded surface, which can cause safety issues and system shutdowns if not properly managed.

Grid-Tied System

A solar power system connected to the local utility grid, allowing the exchange of power between the Tesla Solar Roof system and the grid.

Fixed Tilt

The angle at which Tesla Solar Roof tiles are installed relative to the ground, optimized for the location to capture maximum sunlight.

Feed-in Tariff

A policy mechanism that pays solar power producers for the electricity they feed into the grid, often at a premium rate.

Electric Grid

The network of power lines and substations that deliver electricity from power plants to homes and businesses.

Energy Storage System

A system that stores energy for later use, typically composed of batteries, inverters, and energy management software. For Tesla, this usually refers to the Powerwall.

Energy Density

The amount of energy stored in a given system or region of space per unit volume or mass, important for evaluating the capacity of batteries like the Tesla Powerwall.

Efficiency

The ratio of electrical output from the Tesla Solar Roof tiles to the sunlight energy they receive, typically expressed as a percentage.