How Many Solar Panels Do I Need For 2000 kWh Per Month? (+Calculator)

2,000 kWh per month is quite a lot of electricity. Especially if you want to generate it by using solar panels. Nonetheless, everything can be done with enough solar panels. How many solar panels do you need for 2,000 kWh per month?

There are various factors from solar panel sizes, location, and so on that will come into play. We will help you calculate the exact number of solar panels you would need for 2,000 kWh per month.

On top of that, you can freely use the ‘2,000 kWh Per Month Calculator‘ you will find further on. Basically, you just input solar panel wattage and peak sun hours, and the calculator will dynamically calculate how many solar panels you need to get that amount of electricity per month.

First of all, let’s look at the most average possible case: One 300W solar panel in an area with 6 sun peak hours.

If we can calculate how many kWh does this one standard solar panel generate in a month, we will be able to determine the number of such panels to generate 2,000 kWh.

Here’s how you do just that:

300W generates 0.3 kWh every peak sun hour. If we have a sunny location with 6 peak sun hours (measure of solar irradiance), that’s 1.8 kWh per day and 54 kWh per month.

Now, we need to take into account solar panel losses. An average solar panel will lose, due to AC and DC conversions, batteries, and so on, about 25% of the electricity generated. That means that our 300W 6-peak sun hours solar panel will generate 40.5 kWh per month.

It’s easy to determine how many of these 300W solar panels we need to accumulate 2,000 kWh per month:

Number Of Panels = 2,000 kWh/month รท 40.5 kWh/month = 49.38 Panels

What this tells us is that we need 50 300W solar panels to generate 2,000 kWh of electricity per month.

Of course, you might not choose 300W solar panels. You might not get 6 peak sun hours. That means you will need less than 50 solar panels or more than 50 solar panels to generate 2,000 kWh per month.

How much exactly?

You can use this calculator to adjust the panel sizes and peak sun hours to determine the exact number of solar panels you need for 2,000 kWh/month:

2,000 kWh Per Month Calculator

0.00 Solar Panels

Number Of Solar Panels For 2,000 kWh Per Month


Let’s look at one example to illustrate how this 2,000 kWh calculator works.

We will use the standard 300W panels and a not-all-that-sunny location with low solar irradiance (let’s say 5 peak sun hours; that’s North US, even Canada).

Let’s plug 300W and 5 peak hours in the calculator. Here’s what we get:

calculate How Many Solar Panels Do I Need For 2000 kWh Per Month

That means that we would need 59 300W solar panels to produce 2,000 kWh per month if we get little sun (5 peak sun hours).

You can use the calculator to make pretty much any number of solar panels calculation. To help you out, we have calculated the number of solar panels needed for 2,000 kWh for 5,6,7 peak sun hours and 50-1,000W solar panel wattages, and summarized them in this table:

Number Of Solar Panels Needed For 2,000 kWh Per Month (Table)

Solar Panel Size: 5 Peak Sun Hours 6 Peak Sun Hours 7 Peak Sun Hours
50 Watt 356 Solar Panels 296 Solar Panels 254 Solar Panels
100 Watt 178 Solar Panels 148 Solar Panels 127 Solar Panels
150 Watt 119 Solar Panels 99 Solar Panels 85 Solar Panels
200 Watt 89 Solar Panels 74 Solar Panels 63 Solar Panels
250 Watt 71 Solar Panels 59 Solar Panels 51 Solar Panels
300 Watt 59 Solar Panels 49 Solar Panels 42 Solar Panels
350 Watt 51 Solar Panels 42 Solar Panels 36 Solar Panels
400 Watt 44 Solar Panels 37 Solar Panels 32 Solar Panels
450 Watt 40 Solar Panels 33 Solar Panels 28 Solar Panels
500 Watt 36 Solar Panels 30 Solar Panels 25 Solar Panels
1,000 Watt 18 Solar Panels 15 Solar Panels 13 Solar Panels

As you can see, the more powerful the sun (more peak sun hours) and the more powerful an individual solar panel, the fewer solar panels you will need to generate 2,000 kWh per month.

Hopefully, this will help you adequately plan your solar system size. You are also recommended to use this solar calculator (kW, size, savings, payback) before you really start with any solar energy project.

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