Complete Solar Analysis: Vilnius, Lithuania
Solar Overview
Vilnius receives an average of 1,816 sun hours per year, with peak solar production during May. Located at 54.69° latitude, Vilnius experiences notable seasonal solar variations, with summer production significantly exceeding winter output. Vilnius offers moderate solar potential, making installations feasible with appropriate technology choices and financial incentives.
Geographic Impact
The coordinates 54.6872°N, 25.2797°E define Vilnius's position and directly influence its solar energy characteristics. At 54.69°, seasonal sun angle differences are substantial, requiring panel tilt angles between 30-45° for optimal year-round energy capture.
Rating Methodology
The "Average" classification reflects Vilnius's solar resource quality, considering its 1,816 annual sun hours and 8.5°C average ambient temperature. The cool environment benefits panel efficiency, with lower temperatures offsetting reduced irradiation during shorter winter days. These conditions make solar economically viable, especially when electricity costs are high or incentives reduce initial investment.
Understanding the Data
The following chart shows how solar energy varies month-to-month in Vilnius. Summer months (June–August) account for approximately 48% of annual solar irradiation, while winter months contribute around 12%. 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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