It mainly depends on the size of the photovoltaic panel of the solar fan, whether it is monocrystalline or polycrystalline, and where it is placed. Generally, the solar fan panel is only 15W. After generating electricity, the battery is charged and. stored. Next, work on discharging the battery.
15W*1 hour*0.7=10.5WH is equivalent to generating 0.0105 kilowatt hours of electricity in one hour and 0.0000029166 kilowatt hours of electricity in one second, which is an amount negligible electricity.
About rechargeable fans and solar rechargeable fans
Generally speaking, a 17-inch TV with a power of about 200W, an electric fan of a power of about 50 W, and an electric light of 100 W (assuming). With this configuration, your total power consumption is approximately 350W.
Based on the current pann conversion efficiencybattery waters, it is almost 130 W/m2, so you need about 3 m2 of battery panels. If you follow the price of 8 yuan/W, you will need around 2,800 yuan to buy solar panels.
A 12 V, 200 Ah battery is equivalent to 2.4 kilowatt hours of electrical energy. Considering the conversion efficiency of the inverter and the depth of discharge, the electrical energy available to you is approximately 1.5 kilowatt hours. In this way, when there is no sun at night, the battery can be used for about 5 hours.
No solar fan is needed, just purchase a multifunctional solar power supply.
The battery panel is placed in a place where the sun can shine and is connected to the multifunctional power supply of the nest with a cable. Use the 220V AC output port of the power supply directly. connect a regular fan.
The specific power and costdepend on the duration and power of use of the fan