How big a solar panel does a 3w water pump need

How do I choose a solar array for my water pump?

It should meet your water needs and work well with your solar power. How do I size the solar array for my water pump? Figure out how much power your pump needs, then pick the right number and size of solar panels. Consider the pump’s power, the total dynamic head, and your location’s sunlight.

How much solar power does a water fountain need?

The higher the head, the more power you need. The Vecharged Rule of Thumb: For every 100 watts of solar panel, you can typically expect to pump around 1,000 gallons of water per day to a moderate height (e.g., 20-30 feet). Example for a Small 12V Fountain: A small 12V water fountain pump might only need a 20-watt solar panel.

How to choose a solar water pump?

After figuring out the solar array size, pick the right pump. Look at your water needs and the pressure. Choose a pump that can handle your daily water use and fits with the solar array. The number of solar panels needed to run a 1 hp water pump changes with the system’s details. A solar pump design calculation excel tool can give you a rough idea.

How much solar power does an AC pump need?

Here’s some estimates on solar power for an AC pump – this varies depending on what kind of system you get but its a start! For a 1/2 horsepower pump, you’ll need about eight solar panels or 800 watts of power.