3 days ago · Ceiling fan wattage. Basically, you have to figure out how many watts does a ceiling fan use. Below you will find a table with 15 units, with ceiling fan wattage, CFMs, efficiency
An average ceiling fan consumes 60W an hour. 60W x 1 hour = 60W solar panel required. A 60W fan that runs for 5 hours a day is equal to 9000W a month or 9kwh. You may want to use a 70W solar panel to have extra power in case of a cloudy day. In this case, the 60W Rich Solar Panel will be enough.
For example, if you calculated an adjusted solar system size of 75 watts and used 100W panels, you would need one 100W solar panel to power the fan, considering system losses and efficiency factors. Also See: How to Connect 18V Solar Panel to Charge 12V Battery
Because a solar panel does not produce a consistent flow of energy, the fan will need to handle low and high energy output. That situation is taxing for electric motors and could mean a shorter lifecycle for the fan. Most fans use between 50-100 watts per day.
Multiple window fans will require more solar power. Pedestal fans are portable and placed on tables, which is why they are also called table fans. Watt usage ranges from 50W-60W depending on the number blades. Because they don’t use a lot of watts, you can get by with an 80W solar panel or even less. Portable, can be moved from room to room..
That situation is taxing for electric motors and could mean a shorter lifecycle for the fan. Most fans use between 50-100 watts per day. So, a battery that held 100 watts of energy would be sufficient to power the fan with a consistent stream of energy – Problem solved! One way to solve this problem is to use a solar battery storage system.
Window fans (35 to 100 watts): For a 4-hour operation, a window fan would require 140 to 400 Wh. Box fans (47 to 100 watts): A 4-hour operation for a box fan would consume 188 to 400 Wh. Table fans (17 to 43 watts): A 4-hour operation for a table fan would need 68 to 172 Wh. Also See: How Many Solar Panels to Run a Pool Pump?
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