Solar power plants designed in accordance with established design principles are influenced by snowdrift accumulation in Polar climates. A strategy to avoid snowdrifts in the plant is to adapt the design of the plant itself. To provide a background for the adaptation of solar power plants to Polar climates, the effect of performing parameter adjustments on the snow accumulation conditions as well as the plant yield should be quantified. This study uses Computational Fluid Dynamic (CFD) and energy yield simulations, validated with field measurements, to investigate the sensitivity of snowdrift accumulation and energy yield to solar power plant design parameters. The investigated parameters include the panel tilt, the row spacing, the gap-to-ground, the system scale and the azimuth/wind direction. Here it is shown that the investigated design parameters exhibit a large variation in sensitivity and that only two parameter adjustments which reduce the risk of snowdrift accumulation increase or have an insignificant impact on the energy yield, namely increasing the gap-to-ground and the system scale. Tilt, pitch and azimuth adjustments can reduce the risk of snowdrift accumulation but for a trade-off in energy yield. As the snowdrift accumulation conditions depend on the local snow and wind climate and PV system characteristics such as plant size, the design adjustments should be performed for the specific design scenario. This study provides a background for adjusting the design of the plant to the local climate to increase the snowdrift resilience while minimizing adverse effects on the system yield.

根据既定设计原则设计的太阳能发电厂受到极地气候中积雪的影响。避免工厂中积雪的策略是调整工厂本身的设计。为了为太阳能发电厂适应极地气候提供背景，应量化参数调整对积雪条件和植物产量的影响。本研究使用计算流体动力学 (CFD) 和能量产量模拟（通过现场测量验证）来研究雪堆积累和能量产量对太阳能发电厂设计参数的敏感性。研究的参数包括面板倾斜、行间距、离地间隙、系统规模和方位角/风向。这里表明，所研究的设计参数表现出很大的灵敏度变化，并且只有两个降低雪堆堆积风险的参数调整会增加或对能量产量的影响微不足道，即增加对地间隙和系统规模。倾斜、俯仰和方位角调整可以降低雪堆堆积的风险，但需要权衡能量产量。由于雪堆堆积条件取决于当地的风雪气候和光伏系统特性，如电站规模，应针对具体的设计场景进行设计调整。这项研究为根据当地气候调整工厂设计以增加雪堆恢复能力同时最大限度地减少对系统产量的不利影响提供了背景。