Answer for USA, Canada and countries running a 60 Hz power supply service.
Nowadays 120 volts is the standard voltage for low-power household AC (Alternating Current) socket outlets.
Solar panels produce DC (Direct Current) so, because household power is AC, you will need to install a "DC - to - AC" power inverter, also known as a "grid tie inverter", of the right size and connect it safely into your house wiring.
Without knowing the make of the panels, the voltage they produce and the total number of them you are planning to install, it is impossible to give you a more helpful answer.
After you have installed the panels onto your roof, or wherever, the best advice anyone can give you is to call a licensed electrician to connect them to your household wiring in a safe manner that complies fully with the wiring codes or regulations in your locality. (Town/state) .
For more information about installing solar panels and grid tie inverters, as well as standard household power supplies, see the Sources and related links shown below this answer, and also the answers to the Related Questions.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
If you do this work yourself, always turn off the powerat the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicator to insure the circuit is, in fact, de-energized.
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To run 110v appliances using solar panels, you will need an inverter to convert the DC power generated by the solar panels into AC power. Connect the solar panels to a charge controller, then connect the charge controller to the inverter. The inverter can then be connected to a breaker panel to distribute the power to your 110v appliances.
The number of solar panels needed to run a house depends on factors such as energy consumption, location, roof size, and panel efficiency. On average, a typical household in the US may need between 20-30 solar panels to cover their energy needs. It is recommended to have a professional solar installer assess your specific requirements for an accurate estimate.
The number of solar panels needed depends on the power consumption of the pool pump. You'll need to know the wattage of the pump to determine the amperage and number of panels required. A rough estimation is that a 1-2 horsepower (HP) pool pump typically requires around 1500-2000 watts or 12-17 amps, so you'll need enough solar panels to produce this much power consistently.
Solar power can be used to run a refrigerator efficiently by installing solar panels on the roof to capture sunlight and convert it into electricity. This electricity can then be used to power the refrigerator, reducing the reliance on traditional electricity sources and lowering energy costs.
To efficiently run a refrigerator on solar power, you will need to install solar panels on your roof or in a sunny area, connect them to a charge controller and battery system, and then connect the battery system to an inverter that can convert the stored energy into usable electricity for the refrigerator. Make sure to properly size the solar panels and battery system to meet the energy demands of the refrigerator. Regularly monitor and maintain the system to ensure optimal performance.
Depends. Some smaller stuff can usually run on both, in which case it will be printed on them. If it isn't, you can't run a 220v item on 110v.