How Many Watts Does a Well Pump Use - Nature's Generator

How Many Watts Does a Well Pump Use

Millions of Americans rely on well pumps to get their daily water supply. That is why this blog post is focusing on providing an overview of the wattage and horsepower needed by different well pump sizes and to answer the question, “How many watts does a well pump use?
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Well pumps have a crucial role in supplying water for agricultural, commercial, and residential purposes. It is estimated that more than forty-three million Americans rely on wells to get their water. And, unlike city water which undergoes several treatment processes to ensure that they are safe to drink, well water isn’t. It is up to homeowners to purify and clean the well water before drinking or using them.

And, modern well pumps rely on electricity to help people ensure that they get clean water. And, it is important to understand the power requirements of a well pump when installing one. It is essential for efficient and cost-effective operation. In this blog, we will delve into well pump power consumption, look into the factors that influence it, and discuss solar energy as an alternative to power well pumps.

How Many Watts Does a Well Pump Use?

At a minimum, a basic well pump has an average power rating of 700 to 800 watts. But, some pumps can go as high as 5,000 watts.

A well pump’s power requirement varies depending on several factors such as:

The Pump Type - Different kinds of well pumps have different power requirements. That’s why it is highly recommended that people should choose a well pump with a good power rating. The submersible pump is the most popular choice among homeowners because of its versatility. It works no matter how shallow or deep the well is. However, it requires more power to use compared to surface pumps.

Well Depth - It is important to pick a pump that is able to handle depth while still being energy efficient. In general, deeper wells require more energy to move water to the top because the pump is working against the gravity’s pull.

The Size of the Pump and Water Volume - The rule of thumb is —--- a larger pump is going to require more power since they are designed to move more water. It’s important to get a pump size that’s appropriate to your specific water volume needs to avoid unnecessary expenditure.

The Pump’s Efficiency - Be sure to check the energy rating of the well pump when on the market for one. Well pumps with a good energy rating meant having high efficiency when used. They are designed and produced to work effectively in pumping water while reducing electricity consumption.

Understanding Well Pump Wattage and Horsepower

It's important to note that well pumps are often rated in terms of horsepower (HP) instead of watts. One horsepower is approximately equal to 746 watts.

Pump Motor Size

Starting Wattage

Running Wattage

0.33 HP

1,500 watts - 2,400 watts

750 watts - 800 watts

0.5 HP

1,800 watts - 3,150 watts

900 watts - 1,050 watts

0.75 HP

3,000 watts - 5,400 watts

1,500 watts - 1,800 watts

1 HP

4,000 watts - 7,200 watts

2,000 watts - 2,400 watts

1.5 HP

5,000 watts - 8,400 watts

2,500 watts - 2,800 watts

2 HP

7,500 watts - 12,000 watts

3,750 watts - 4,000 watts

3 HP

10,000 watts - 16,500 watts

5,000 watts - 5,500 watts

5 HP

15,000 watts - 24,000 watts

7,500 watts - 8,000 watts

7.5 HP

20,000 watts - 33,000 watts

10,000 watts - 11,000 watts

10 HP

30,000 watts - 48,000 watts

15,000 watts - 16,000 watts

Here's a breakdown of the power consumption based on the motor size of the well pump:Chart via

Determining Power Consumption and Cost

Understanding and knowing the well pump’s power consumption helps in determining how much impact on the electricity bill is going to be and in one’s bank account. 

To start with, make sure to have the information on the well pump’s wattage, the well pump’s operating hours, and the local electrical rate. 

Then, multiply the pump wattage by the number of hours the pump operates each day.

For instance, if a well pump with a power rating of 800 watts runs for 8 hours a day, the consumption would be 6.4 kWh (kilowatt-hours) per day. This can add up to 44.8 kWh per week.

Then, multiply the total by the local’s per kWh rate

Nature's Generator Powerhouse

Alternative Electricity Solution: Solar Power Generators for Well Pumps

Given the potentially high energy requirements of well pumps, finding cost-effective alternatives becomes crucial not just for off-grid set-ups. 

By utilizing solar-powered battery backups offering a sustainable and affordable solution, one can get clean and safe water while also being conscious of the environment’s health. 

When selecting the right option for the well pump setup, be sure to consider both the running watts and starting watts as stated above. 

Nature’s Generator has the Powerhouse series which offers a wide range of options with varying power ratings. The line-up can accommodate different well pump wattage requirements. One can start as low as 4,800 Wh and can expand the system infinitely if needed.

Advantages of Using Solar Energy for Well Pumps

Why use solar energy as an alternative well pump energy solution?

  1. No pollution or noise produced - Home power batteries such as Nature’s Generator do not emit any harmful gasses and do not produce loud noises when used by their counterparts.

  2. Cost-effective: Solar power eliminates fuel costs and reduces reliance on grid electricity, resulting in long-term savings. Besides low operation costs, it is also low maintenance.

  3. Off-grid functionality: Solar power allows well pumps to operate even in remote areas without access to the grid.

  4. Environmental sustainability: Solar power is a clean and renewable energy alternative, reducing carbon emissions and impact on the environment.

Understanding the power consumption of well pumps is important for an efficient and cost-effective operation. After all, making an informed decision about well pump power consumption provided peace of mind and a happy bank account. 

The pump type, well depth, size of the pump/water volume, and the pump’s efficiency influence the power requirements of a well pump. So, be sure to check into them when in the market for a well pump. 

Lastly, by considering solar energy as an alternative solution, you can harness the benefits of sustainable and affordable power for your well pump needs.


* We want to give credit where credit is due. Professional writer, Cris Ilao, contributed research and content to this blog titled: How Many Watts Does a Well Pump Use Thank you, Cris, for your contributions!