集成您的家庭电池
家庭电池允许家庭在您生产的太阳能超过使用时存储能量，或者在当前价格较低时从电网存储能量。
Home Assistant允许您跟踪从/到电池的能量流动情况。
硬件
Home Assistant需要知道从/到电池的能量流动量。可以通过多种方式跟踪此数据。
电池提供
一些电池供应商提供API，以将数据集成到您的Home Assistant实例中。一个例子是Tesla Powerwall。
使用CT夹具传感器
Current transformer (CT) clamp sensors measure your energy usage by looking at the current passing through an electrical wire. This makes it possible to calculate the energy usage. In Home Assistant we have support for off-the-shelf CT clamp sensors or you can build your own.
- The off-the-shelf solution that we advise is the Shelly EM
. The device has a local API, updates are pushed to Home Assistant and it has a high quality integration. - You can build your own using ESPHome’s CT Clamp Current sensor
or energy meter sensors like the ATM90E32 . For the DIY route, check out this video by digiblur to get started.
Attention! Installing CT clamp sensor devices requires opening your electrical cabinet. This work should be done by someone familiar with electrical wiring and may require a licensed professional in some regions. Your qualified installer will know how to do this.
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