1kw Solar Panel (Ultimate Guide to a 1kw Solar System)

The thought of including a 1kw solar panel to your solar array must have crossed your mind more than once this year (I know it has for me).

By now, you already know how much value is added to your household and the planet by installing solar panels.

Instead you rather want to focus on all the different types of solar panels and their wattage. In particular, you’re interested in a 1kw solar panel system.

To my knowledge, single 1000 watt solar panels do not exist.

However, this article aims to teach you how to build your own 1kw solar system using top quality monocrystalline solar panels from companies such as Renogy and Eco-Worthy.

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1kw Solar Panel Overview

As I’ve already mentioned, individual 1000 watt solar panels do not exist, at least not yet in 2021.

Instead, when you see someone referring to a 1kw solar panel, they are in fact referring to a 1kw solar system. Whereby the system is made up by an array of solar panels equaling 1000 watts.

For example, by connecting 10x 100 watt solar panels in series, you’d essentially end up with a 1kw solar array.

It’s important you keep this fact in mind, as 10 x 100 watt solar panels can take up quite a bit of space depending on the brand/solar panel type you use.

1kw Solar Panel Price

The average price for a 1kw solar panel array is between $700 to $1200 (just for solar panels).

Below, I’ve created a table which you can use to judge the different types of 1kw solar setups and their pricing.

Please note the pricing used in this table comes from Renogy and assumes you’ll only be using monocrystalline solar panels.

(Pricing of 1kw solar panels include tax)

Solar Panel WattageAmount of Solar PanelsTotal WattageSize of Each PanelPrice Renogy
50 Wattsx 201kw601 x 497 x 30 mm$1,395.91
100 Wattsx 101kw1066 x 508 x 35 mm$1,204.39
200 Wattsx 51kw1620 x 657 x 35 mm$1,642.45
300 Wattsx 31,2kw1666 x 1002 x 35 mm$1,423.46

1kw solar panel size

So as I’ve already mentioned, a 1kw solar panel does not come singular. With current solar technology that would be one humungous solar panel!

Instead, to understand the size of a 1kw solar system, you will have to look at the joined sizes of all your solar panels put together.

In the price table above, I have included the individual size of each solar panel type.

Let’s use the most popular solar panel wattage, the 100 watt solar panel from Renogy. Each 100 watt solar panel has the following dimensions: 1066 x 508 x 35 mm (41 x 20 x 1.3 inches).

Let’s assume you will create two rows of solar panels on top of your roof. That would mean 5 solar panels per row (to equal the 1kw or 1000 watt with 10x 100 watt solar panels).

Positioning the solar panels vertically on your roof would mean your total height (with two rows of solar panels) will be 2132 mm and your total width (with 5 solar panels next to one another) would be 2540 mm.

This means the total size of 1kw solar panel setup would be 5,25M2.

How many solar panels are required for 1kW?

At first, this may seem like a super easy calculation. I mean, 1000 watts equals 1kw. Therefore, if you have four 250 watt solar panels and connect them in series, you’ll end up with 1000 watts, or 1kw.

However, you must remember that solar panels lose wattage as the temperature increases, and .

This is usually represented as a percentage loss per degree Celsius (you’ll always find this information on the product packaging/user manual or if buying online in the specifications section of the product).

Is 1kw enough to run a house?

This question is relative and all depends on your homes energy consumption.

However, the average American home consumes 877 kWh a month which adds up to 29 kWh a day. 29 kWh equals approximately 1.2kw, therefore a 1kw solar panel system is not enough to power your average American household.

Also, bare in mind that not every single day will be sunny, there may be rain forecasted for the week, or it may be extremely overcast.

With all things considered, if you consume the same amount of energy as the average American, you’ll need a bigger solar array like this one, to provide your home with enough electricity.

kWh is the common unit used to measure a households consumption.

Here is the formula to convert kWh to kw:

The power P in kilowatts (kW) is equal to the energy E in kilowatt-hours (kWh), divided by the consumption time period t in hours (h):

P(kW) = E(kWh) / t(h)

What can be run on 1kW solar panel?

Here’s a quick infographic to give you a rough idea on what a 1kw solar panel array would be able to power simultaneously.

what can be run on a 1kw solar panel

At first this seems amazing, and it is (all green technology able to better the planets quest for renewable sources of energy is incredible and the future!) but there are some practical points for you to consider.

For example, a 1kw solar panel system will on produce 1kw of electricity for a few hours a day, and only when it’s a clear sunny day.

Below is a chart showcasing the electricity output of a 1kW solar panel system over a summer’s day. You can see that 1kW is only generated at 12pm when the sun is at its strongest:

1kw solar panel system

If you plan to go completely off grid and rely entirely on your own source of electricity, I’d recommend investing a larger solar kit setup, such as a 3 – 5 kw solar panel kit.

Best 1kw solar panels

Below I will mention the best solar panels/brands to create your own 1kw solar panel system. I will only be recommending singular solar panels, you will need to multiply your order to build a 1kw solar system.

For example I will recommend the best 100 watt, 200 watt and 250 watt solar panels, you will need to multiply your order by either

(Please note I will add to this list in the future.)


WEIZE solar panel is constructed with high-performance Monocrystalline solar cells that offer higher efficiency up to 21% than Polycrystalline in bright weather condition, it provides a long service life and is virtually maintenance free.

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