Ottawa Solar Data: Annual Sun Hours & Production Potential
Solar Overview
Ottawa, situated in Canada, offers 1,896 sun hours yearly, with maximum solar production in July. This mid-latitude position (45.42°) creates moderate seasonality, with winter sun angles approximately 47° lower than summer peaks. The moderate solar resource in Ottawa requires optimization of system design to maximize energy production and economic returns.
Geographic Impact
Located at 45.4215° latitude and -75.6972° longitude, Ottawa's geographical position significantly impacts its solar potential. This latitude results in notable sun angle variations between seasons, with winter sun angles being 40-47° lower than summer peaks, affecting optimal panel positioning.
Rating Methodology
Ottawa receives a "Average" rating for solar potential, derived from comprehensive analysis of 1,896 annual sun hours, 7.5°C average temperature, and geographic factors. Cold temperatures improve solar panel performance by 5-10% above standard ratings, though winter snow management should be considered. Ottawa's solar conditions enable systems to generate 1,000-1,200 kWh per installed kW annually, supporting meaningful energy bill reductions.
Understanding the Data
The chart provides a visual breakdown of solar irradiation by month for Ottawa. Summer dominance is evident with 42% of annual production, while winter contributes a more modest 16%. Such seasonal characteristics are important factors in determining appropriate battery storage capacity and grid integration strategies.
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