What size inverter do I need for a coffee maker?

By Matthew Joseph Nandirio •  Updated: 10/08/22 •  6 min read

The coffee maker is a staple in most the kitchen. The equipment requires power to boil the water. Running a coffee maker on the inverter may consume a good amount of electricity. The average-size coffee maker may require 750 to 1000 watts. The espresso machine would require 2000 watts.

What size power inverter do I need for a coffee maker?

The coffee maker comes in different sizes and shapes. The coffee maker’s amount of energy would require determined based on two factors: the energy requirement for every use and the second, the number of times you use the coffee maker in a day.

Generally, the average-size coffee maker consumes 750 to 1000 words watts. In comparison, the large-size espresso machine would require 2000 watts.

When you use the coffee maker for brewing, the several cups per day will draw around 20 to 40 amps of power.

If you want to save energy consumption, then use a single coffee maker. It will reduce the wastage of energy per brewing.

How many watts does it take to run a coffee maker?

The coffee maker with different sizes and functionality decides how many watts a single coffee maker would use.

Before discussing the amount of energy required to run the coffee maker, we will first know what formula would help us identify the exact amount of energy necessary to run the coffee maker.

Using this formula, you can calculate how many watts any electric appliance in the home would require.

Formula:

Volt x Amperes = Watt

The average size coffee maker will consume energy from around 600 to 1200 watts.

Generally, the coffee maker is used for several days at a time. Especially in the corporate office, the coffee maker is used repeatedly.

Knowing the energy consumption per serving will help you to understand the total watts utilize throughout the day.

Two different brands of coffee makers may draw different watts based on the material in the manufacturer and the efficiency of the product.

Therefore, the formula will give you a rough estimation of energy consumption. Based on these figures, you can decide how much energy each coffee maker is consuming.

Every coffee maker has to perform a single task, heating the water at the boiling point. The coffee maker heats the water from 50 to 200 degrees.

Typically the healing process of the coffee maker would require 1000 watts of electricity. When you switch on the coffee maker, the heating process may take 5 to 7 minutes to reach the boiling point.

If we apply simple math, the energy required to make a single pot of coffee may need 0.083 (KWh) energy.

The amount of energy per pot may not look like a lot, but when the coffee maker uses it several times a day, the number increases and adds to the total watts.

Think of the coffee maker used in the office where several coffee drinkers use the coffee maker to brew coffee twice a thrice per day per person.

How do I know what size inverter I need?

The inverter size is generally determined based on the number of watts you required per electronic equipment. The first thing that you have to do is calculate the energy consumption in watts.

Let’s say you are going to use the average size coffee maker to brew the coffee. The small-size coffee maker draws approx 750 to 1000 watts of energy per hour.

The watts requirement of the household equipment is mentioned on the package. Check the watts requirement of the equipment and note it down on the piece of paper.

If you connect multiple devices to a single inverter, you have to add them to get the total energy requirements.

The average coffee maker that draws 700 to 1000 watts of energy would require a 1200 to 1500 watts inverter. The excess energy ensures that the coffee maker receives a stable energy supply.

When you start the electric appliance, in the beginning, the electronic appliance requires more energy than its maximum capacity to start the equipment.

Without the excess energy, it would not be easy to start the electric appliance.

When you decide to buy the inverter, calculate the number of appliances you will connect to the inverter and their total wattages.

This will give you a rough estimation of total energy requirements.

How many watts does a small coffee maker use?

A small-size coffee maker would require around 500 to 1200 watts. The average coffee maker that draws 4 to 5 cups of coffee per serving consumes 550 to 900 watts. The large-size coffee maker would require 750 to 1200 watts of energy supply.

The coffee maker uses energy to heat the interior.

Some automated coffee makers keep the interior hot to allow the user to get instant hot coffee, so you do not have to wait in a queue.

This type of coffee maker may use additional watts to keep the interior hot. It will maintain the water temperature near the boiling point.

When the user reaches the coffee maker to take the cup of coffee, more energy is transferred to boil the water and make the coffee instantly.

The automatic coffee maker will consume 60 watts per hour to maintain the water temperature near the boiling point.

The coffee maker is active until you turn off the power. Your coffee maker will keep consuming electricity even if you are not using it most of the time.

How much does this cost?

Based on the energy consumption of the coffee maker will use 100 to 150 kWh of energy per year. If you are living in the US, the average cost per kWh is 13.19 cents.

Calculating the amount of energy consumed by the coffee maker shows that you will be spending between $13 to $20 a year on each coffee maker.

The cost may not seem much when you consider using the coffee maker for one cup of coffee, but when you add more appliances to your power grid, the total wattage will go up and add to your energy bill.

How much energy will a single-serve coffee maker use?

The energy requirements of each coffee maker will be different. The power consumption of the coffee maker depends on the size, features, automatic brewing capability, room temperature, etc.

The automatic coffee maker keeps the water heated during the day. It does that to offer you a ready-use coffee brewing facility.

When the water is already heated, it will give you instant coffee. In the average coffee maker, you have to wait for 5 to 6 minutes to get your coffee.

The top coffee maker manufacturing brand works on the efficiency of the equipment. Therefore, when you decide to buy a coffee maker, choose an efficient coffee maker from a well-known brand.

Some brands may charge more for offering good quality products, but the price is worth it when comparing the amount of energy it saves throughout the year.

Modern coffee-making machines are convenient to use and require less maintenance.

In contrast, some high-end coffee-making machines focus on full automation where there is too much automation, and the energy required to maintain the features is also high.

So you have to decide whether you want a fully automated machine with high energy consumption or a semi-automated machine that saves energy.

The average coffee-making machine consumes energy between 200 to 400 watts to brew a single cup of coffee.

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Matthew Joseph Nandirio

Matthew Joseph Nandirio is the Founder of walkingsolar. After graduating from the University of Houston in 2002, matt started working as an electrical and electronic engineer for several multi-national solar energy companies. He has a wide range of experiences including solar system requirement analysis, planning, maintaining, debugging and even solar device development through research. He now shares his 20 years of expertise through his articles on the walkingsolar website. Further, he is also the author of two books on Solar Technology, “Solar Power for Villages” and “DIY Solar System for Dummies”.