输入参数
可编辑的示例值估算结果
实时计算结果倾角
25 °
朝向
朝向 · S · (180°)
朝向 · °
180 °
这些结果用于初步规划。选购设备前，请核对计算假设。
系统不会自动获取位置或电价，计算以您输入的数据为准。
如何使用这个计算器
输入所在地纬度并选择更看重的季节。推荐角度只是起点，屋顶形状和遮挡情况也会影响选择。
英文技术说明
Common questions
Do I need a solar time calculator or a panel tilt calculator?
A solar time calculator concerns the sun's position and timing, while this tool gives a fixed panel-tilt starting point from latitude. The NOAA solar calculator provides sunrise, sunset, solar noon and position calculations. NOAA currently says that service is no longer actively maintained, so review its limitations before relying on it.
计算方法
Rule of thumb: annual tilt ≈ absolute latitude. Winter tilt ≈ latitude + 15°; summer tilt ≈ latitude − 15°, limited to 0–90°. Tilt is measured from horizontal; azimuth is measured clockwise from true north.
使用结果之前
A heuristic, not a weather-based optimization. Roof geometry, shading, wind, soiling and time-of-use demand can favor another tilt or orientation. West-facing systems may shift output later in the day without maximizing annual energy.
Is true south the same as compass south?
Not always. Magnetic declination varies by location. Use true north/south for the azimuth reference.