Planning & decision guide for solar PV systems : procedure for solar
Planning & decision guide for solar PV systems : procedure for solar designers, builders and their design teams to quickly define solar PV requirements.
Most Canadian grid-connected solar PV systems are designed with the modest goal of reducing grid electricity use to some extent. Some projects have the more ambitious goal of achieving Net-Zero Energy (NZ) or Net-Zero Electricity performance using grid-connected solar PV.
Generally, Canadian rooftop solar PV energy production is maximized with azimuth as close to true South as possible and roof pitch angle somewhere between latitude and latitude-15°. Builders and architects often wonder whether changes to roof orientation and/or pitch to maximize solar PV energy production are justified.
Solar panels produce energy primarily from sun light striking perpendicular to the array surface. In Canada, south-oriented solar PV panels placed at an angle matching the homes longitude typically provides optimal annual energy production, but alternate orientations can be highly effective as well.
Planning for specialized requirements needed for community-wide solar PV installations, (e.g., use of centralized energy storage facilities, etc.) falls outside the scope of this guide. Provide a framework to ensure important, project-specific needs are met, which could improve performance, affordability, and value of the new home.
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