Solar Energy Analysis for Vientiane, Laos
Solar Overview
With 2,358 sun hours annually, Vientiane offers average solar conditions, especially during December. This near-equatorial location (17.98°) provides extremely consistent solar irradiation year-round, with minimal seasonal variation. Vientiane presents workable conditions for solar energy, particularly when combined with energy efficiency measures and available incentives.
Geographic Impact
Vientiane's location at 17.9757° latitude and 102.6331° longitude plays a crucial role in determining solar production patterns. At 17.98°, the near-equatorial location means the sun passes almost directly overhead year-round, creating ideal conditions for solar generation.
Rating Methodology
Solar potential in Vientiane is rated "Average" based on detailed evaluation of irradiation levels (2,358 hours), temperature conditions (27.2°C), and seasonal patterns. While warm temperatures cause some efficiency loss, the abundant solar resource ensures strong overall system performance. The workable solar resource in Vientiane requires careful system design but can deliver worthwhile energy and cost savings.
Understanding the Data
The monthly sun hour distribution for Vientiane is illustrated in the chart below. The chart reveals balanced solar availability throughout the year, with peak production during December. This distribution pattern helps inform decisions about fixed versus tracking systems and optimal capacity design.
💡 Tip: Solar panels in Vientiane may benefit from elevated mounting to improve air circulation and reduce heat-related efficiency losses during peak summer months.
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