用电设备
可编辑的示例值估算结果
实时计算结果Example wattages are editable. Enter nameplate or measured values for your actual appliances.
完整太阳能系统选型 →如何使用这个计算器
把家里的电器、功率和每天使用时间填进去，就能估算一天用多少电，以及同时开启时需要多大功率。
英文技术说明
Common questions
Is a watt calculator the same as a kWh calculator?
Watts measure power at a moment; kWh measures energy over time. This appliance tool provides both connected running watts and daily energy. For a solar calculator, kWh demand helps size generation, while simultaneous power and startup surges determine inverter requirements.
Can I include lights when planning solar power?
Yes. Add the number of lights, electrical watts per light and hours of use to your appliance list. For a standalone solar light with its own panel and battery, this estimates only the lamp energy demand; it does not verify the built-in battery, charge controller or manufacturer runtime claims.
计算方法
使用结果之前
Nameplate wattages are starting points. Refrigerators and inverter ACs cycle or vary their power: use measured average energy or an appropriate duty cycle. Starting surges are not included in connected load.
How should I enter an air conditioner?
Use its electrical input watts, not cooling capacity or tonnage. Adjust duty cycle for actual operation.