Saint Petersburg Solar Data: Annual Sun Hours & Production Potential
Solar Overview
Saint Petersburg, situated in Russia, offers 1,658 sun hours yearly, with maximum solar production in July. At 59.93° latitude, Saint Petersburg experiences dramatic seasonal shifts, with summer sun hours vastly exceeding winter production. Solar energy in Saint Petersburg faces challenges from limited irradiation, making system optimization and realistic expectations essential for success.
Geographic Impact
Positioned at 59.9311° latitude and 30.3609° longitude, Saint Petersburg's geographic coordinates shape its solar resource profile. At this high latitude, the sun angle is considerably lower during winter months, which reduces solar panel efficiency and makes optimal panel tilt angles more critical for year-round performance.
Rating Methodology
With 1,658 sun hours annually and 7.4°C average temperature, Saint Petersburg achieves a "Poor" solar potential rating. Cold temperatures improve solar panel performance by 5-10% above standard ratings, though winter snow management should be considered. Solar installations in Saint Petersburg typically achieve capacity factors of 10-12%, requiring careful economic evaluation and optimal system design.
Understanding the Data
The chart provides a visual breakdown of solar irradiation by month for Saint Petersburg. A significant seasonal concentration is evident, with 48% of yearly irradiation occurring during summer versus 12% in winter months. Such seasonal characteristics are important factors in determining appropriate battery storage capacity and grid integration strategies.
⚠️ Note: Notable seasonal variation suggests that battery storage or grid connection helps optimize energy usage across all seasons.
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