Solar Energy Analysis for Glasgow, United Kingdom
Solar Overview
With 1,303 sun hours annually, Glasgow offers poor solar conditions, especially during May. This northern location at 55.86° latitude results in highly variable solar production, with extended summer days balanced by dark winters. Solar installations in Glasgow require thoughtful design and may benefit from energy storage to optimize the limited available solar resource.
Geographic Impact
Positioned at 55.8642° latitude and -4.2518° longitude, Glasgow's geographic coordinates shape its solar resource profile. This northern position results in sun angle variations exceeding 47° between seasons, requiring careful consideration of panel orientation and tilt for optimal energy capture.
Rating Methodology
With 1,303 sun hours annually and 9.9°C average temperature, Glasgow achieves a "Poor" solar potential rating. The cool environment benefits panel efficiency, with lower temperatures offsetting reduced irradiation during shorter winter days. Solar installations in Glasgow typically achieve capacity factors of 10-12%, requiring careful economic evaluation and optimal system design.
Understanding the Data
The monthly sun hour distribution for Glasgow is illustrated in the chart below. A significant seasonal concentration is evident, with 48% of yearly irradiation occurring during summer versus 12% in winter months. This distribution pattern helps inform decisions about fixed versus tracking systems and optimal capacity design.
⚠️ Consideration: The seasonal production pattern makes winter energy storage or grid backup important for consistent power availability.
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