Comprehensive Solar Guide

How Solar Panels Work

Solar panels operate using the photovoltaic effect. When sunlight strikes the silicon cells within the panel, it excites electrons, generating a flow of direct current (DC) electricity.

Basic Components

• Solar Panels: The generation source mounted on the roof or ground.
• Inverter: Converts DC electricity to usable AC electricity.
• Racking/Mounting: The hardware securing the system in place.
• Monitoring System: Software/hardware to track performance.

Roof Considerations

A roof must be structurally sound. South-facing roofs receive the most sunlight in Ontario, followed by east and west. Heavy shading significantly impacts generation capability.

Seasonal Considerations in Ontario

Solar panels still generate electricity in winter, though reduced daylight hours affect overall production. A light dusting of snow may block light, but the dark surface of the panels often helps snow melt and slide off rapidly on pitched roofs.

Questions to Ask Before Installation

Consider the age of your roof, your property's primary electrical demands, municipal bylaws, and whether you require battery backup for critical systems during grid outages.