輸入參數
可編輯的範例值估算結果
即時計算結果模組 · 數量
10 模組
模組 · 總計 · 功率
5.5 kWp
每日 · 發電量
22 kWh
這些結果供初步規劃使用。選購設備前，請核對計算假設。
系統不會自動取得位置或電價，計算以您輸入的資料為準。
如何使用這個計算工具
用每日用電量、等效全日照時數和單片板的功率估算數量。結果會向上取整，不會出現半片板。
英文技術說明
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.
計算方法
Required kWp = daily kWh ÷ [peak sun hours × (1 − loss fraction)]. Panel count rounds up required watts ÷ panel watts. Yield uses that rounded panel count.
使用結果之前
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.