6 families.
According to the Tianyancha and Aiqichaqicha websites, there are 6 photovoltaic companies in Luotian County, Luotian Taihe Photovoltaic Power Generation Co., Ltd., Luotian Lvdong Photovoltaic Power Generation Co., Ltd., Luotian County Tengfei Photovoltaic Power Plant in Linjia'ao Village, Yongguang Photovoltaic Power Plant in Liushupu Village, Luotian County, Shengyue Photovoltaic Power Plant in Jinjiashan Village, Baimiaohe Town, Luotian County, and Yongguang Photovoltaic Power Plant in Panjiayuan Village, Luotian County.
Photovoltaics generally refers to photovoltaic power generation systems. Photovoltaic generation system, referred to as photovoltaic, refers to a power generation system that uses the photovoltaic effect of photovoltaic cells to directly convert solar radiation energy into electrical energy.