输入参数
可编辑的示例值估算结果
实时计算结果组件 · 数量
10 组件
组件 · 总计 · 功率
5.5 kWp
每日 · 发电量
22 kWh
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
根据每天用电量、等效满日照小时数和单块板的功率估算数量。结果会向上取整，不会出现半块板。
英文技术说明
Common questions
Can I use this solar panels calculator for different panel sizes?
Yes. Enter the rated watts of one panel to compare panel counts for the same daily energy target. This solar size calculator sizes an array by energy demand; it does not check roof fit, module dimensions or electrical string compatibility.
计算方法
Required kWp = daily kWh ÷ [peak sun hours × (1 − loss fraction)]. Panel count rounds up required watts ÷ panel watts. Yield uses that rounded panel count.
使用结果之前
Peak sun hours are equivalent full-sun hours, not daylight hours. Use a location- and season-appropriate value. Losses should reflect temperature, shading, wiring, conversion and any battery cycling. This energy balance does not guarantee uninterrupted off-grid supply.
Why are panels rounded up?
You buy whole modules; the installed array may exceed the calculated minimum. Check inverter PV capacity and string limits.