Green Technology

How A lot Power Does One Photo voltaic Panel Produce?


When planning your first photo voltaic power setup, the primary query chances are you’ll ask your self is, “how a lot power does one photo voltaic panel produce?”.

The reply to this query isn’t as easy as it might appear, however it’s extremely related.

Why? As a result of it’s essential to know the way a lot power your photo voltaic panel (or array) produces to correctly measurement your photo voltaic panel/array in response to your power wants.

What’s extra, you’ll want to think about this info when sizing the remainder of your photo voltaic power system — your cost controller, photo voltaic battery, inverter, and many others.

On this article, we present you ways a lot power a photo voltaic panel produces based mostly on its rated wattage and site. Moreover, we take you thru every estimation step, offering some working examples.

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What Determines Photo voltaic Panel Power Manufacturing?

A photo voltaic panel is a tool that converts daylight into electrical energy. The quantity of power produced by a photo voltaic panel is dependent upon a number of elements, together with:

As you may see, the quantity of power a photo voltaic panel produces is dependent upon a number of variables.

However don’t fear! To roughly estimate how a lot power one photo voltaic panel produces, it’s essential to deal with two essential elements:

  • photo voltaic panel energy output
  • peak solar hours

Photo voltaic Panel Energy Output

Photo voltaic panel energy output expresses the most energy the panel can generate beneath supreme situations.

It’s normally examined beneath Normal Take a look at Situations (STC), which embody s photo voltaic irradiance stage of 1,000 W/m2, cell temperature of 25° C (77° F), and air mass of 1.5.

Due to this fact, a 150W photo voltaic panel would supply 150W energy beneath supreme situations.

And since energy is the power transferred per unit of time, we’ve got:

Power (Wh) = Energy (W) x Time (h)

With this, we will say {that a} 150W photo voltaic panel would generate 150 Wh of power per peak solar hour (beneath supreme situations):

Power (Wh) = 150W x 1 hour of solar = 150 Wh


Peak Solar Hours (PSH)

It’s no shock that some areas obtain extra daylight than others. That is mirrored by the variety of peak solar hours for every location.

Map showing the average peak sun hours (PSH) in the U.S.
Map displaying the common peak solar hours (PSH) within the U.S.

Peak solar hour is one hour of full solar energy (1000 W/m2), through which a photo voltaic panel’s energy output is at its most.


How To Estimate Photo voltaic Panel Power Manufacturing?

Listed here are three methods to estimate photo voltaic panel power manufacturing:


1. Utilizing Peak Solar Hours (PSH) Knowledge

A straightforward approach to estimate how a lot power one photo voltaic panel produce is to think about the panel’s rated energy output and the placement’s peak solar hours.

Instance

Take into account a 200W photo voltaic panel in Arizona (5.7 peak solar hours). Below supreme situations, this panel ought to produce 200 Wh of power per hour of solar. So in 5.7 hours of solar, it might produce:

Day by day Power Manufacturing (Wh) = Photo voltaic Panel Wattage (W) x Peak Solar Hours (h)

Day by day Power Manufacturing (Wh) = 200 W x 5.7 h = 1140 Wh = 1.14 kWh

Nevertheless, this result’s solely legitimate beneath supreme situations, which embody peak sunshine, zero cloud cowl, a low air temperature to forestall overheating, and a panel place that straight faces the solar.

For sure, these situations should not reflection of “actual world” situations.

For that reason, once we estimate photo voltaic panel power manufacturing utilizing solely the photo voltaic panel’s rated energy output and peak solar hours data (based mostly on location), we must always multiply the ultimate outcome by 80% to account for the affect of “real-world” situations, like so:

Day by day Power Manufacturing (Wh) = Photo voltaic Panel Wattage (W) x Peak Solar Hours (h) x 80%

Due to this fact, the common each day photo voltaic panel power manufacturing of a 200 W photo voltaic panel in Arizona is:

Day by day Power Manufacturing (Wh) = 1140 Wh x 0.8 = 912 Wh ≈ 0.9 kWh


2. Utilizing PV Watts

PV Watts is an internet photovoltaic power manufacturing calculator developed by researchers at NREL (Nationwide Renewable Power Laboratory). This device helps you estimate the power manufacturing of grid-connected photovoltaic (PV) power programs worldwide.

To make use of this on-line calculator, fill within the required info (tackle/location, tilt, PV module kind, and many others.) to get began.

The online calculator PV Watts shows you how much energy a solar panel produces
To get began, enter your tackle.
Supply: pvwatts.nrel.gov

The web calculator will present detailed outcomes concerning photo voltaic radiation and power manufacturing, each month-to-month and yearly.

Example of results provided by PV watts online calculator for solar panel energy produced
Instance of outcomes offered by PV watts on-line calculator.
Supply: pvwatts.nrel.gov

3. Utilizing Particular Photovoltaic Energy Output (PVOUT)

One other attention-grabbing on-line device is the International Photo voltaic Atlas. This device gives fast and straightforward international entry to photo voltaic assets and photovoltaic energy potential information.

An important information this device gives is the “particular photovoltaic energy output” of the placement, expressed in kWh/kWp. This metric gives the quantity of power (in kWh) produced for each kilowatt-peak (kWp) of module capability over a day (or 12 months).

Utilizing this info, you can also make extra exact estimations because it considers empirical measurements and satellite tv for pc information assortment. 

Global Solar Atlas will show you the PVOUT for any location you click on the map.
International Photo voltaic Atlas will present you the PVOUT for any location you click on on the map. Within the instance above, for Arizona, the PVOUT is 5.319 kWh/kWp per day.
Supply: globalsolaratlas.data

With this info at hand, it’s essential to use the next formulation to estimate photo voltaic panel power manufacturing:

Power Manufacturing Per Day = PVOUT (kWh / kWp) x Photo voltaic Panel Energy Ranking (kW)

Instance

For a 200W photo voltaic panel at a location with a PVOUT of 5.3 kWh/kWp per day, the photo voltaic panel power manufacturing is:

Power Manufacturing Per Day = 5.3 kWh / kWp x 0.2 kW = 1.06 kWh


How A lot Power Does One 100-Watt Photo voltaic Panel Produce?

On common, a 100W photo voltaic panel produces 0.4 kWh per day and 148 kWh per 12 months. Nevertheless, these numbers can fluctuate considerably relying in your location.

Under, we ready a desk with the common power produced by a 100W photo voltaic panel in several U.S. states, each day and yearly.

U.S. StatePVOUT Common Per Day (kWh/kWp)100W Photo voltaic Panel Common Power Manufacturing Per Day100W Photo voltaic Panel Common Power Manufacturing Per 12 months
Alabama 40.4 kWh146 kWh
Arizona4.90.49 kWh178.9 kWh
Arkansas 4.10.41 kWh149.7 kWh
California4.80.48 kWh175.2 kWh
Colorado 4.40.44 kWh160.6 kWh
Connecticut 3.40.34 kWh124.1 kWh
Florida 40.4 kWh146 kWh
Georgia 40.4 kWh146 kWh
Hawaii3.60.36 kWh131.4 kWh
Idaho 4.4 0.44 kWh160.6 kWh
Illinois3.90.39 kWh142.4 kWh
Indiana 3.80.38 kWh138.7 kWh
Iowa 40.4 kWh146 kWh
Kansas4.50.45 kWh164.3 kWh
Kentucky 3.90.39 kWh142.4 kWh
Louisiana 4.10.41 kWh149.7 kWh
Maine 3.60.36 kWh131.4 kWh
Maryland 3.90.39 kWh142.4 kWh
Massachusetts 3.80.38 kWh138.7 kWh
Michigan 3.60.36 kWh131.4 kWh
Minnesota3.90.39 kWh142.4 kWh
Mississippi 4.10.41 kWh149.7 kWh
Missouri 40.4 kWh146 kWh
Montana 40.4 kWh146 kWh
Nebraska 4.40.44 kWh160.6 kWh
Nevada 4.90.49 kWh178.9 kWh
New Hampshire 3.70.37 kWh135.1 kWh
New Jersey 3.90.39 kWh142.4 kWh
New Mexico5.20.52 kWh189.8 kWh
New York 3.40.34 kWh124.1 kWh
North Carolina 4.20.42 kWh153.3 kWh
North Dakota 4.20.42 kWh153.3 kWh
Ohio 3.70.37 kWh135.1 kWh
Oklahoma 4.40.44 kWh160.6 kWh
Oregon 4.30.43 kWh157 kWh
Pennsylvania 3.50.35 kWh127.8 kWh
Rhode Island 3.90.39 kWh142.4 kWh
South Carolina4.30.43 kWh157 kWh
South Dakota 4.20.42 kWh153.3 kWh
Tennessee 3.90.39 kWh142.4 kWh
Texas 4.40.44 kWh160.6 kWh
Utah 4.60.46 kWh167.9 kWh
Vermont 3.40.34 kWh124.1 kWh
Virginia4.10.41 kWh149.7 kWh
Washington 3.30.33 kWh120.5 kWh
West Virginia3.60.36 kWh131.4 kWh
Wisconsin 3.80.38 kWh138.7 kWh
Wyoming 4.60.46 kWh167.9 kWh
We’ve used the common each day PVOUT for every state (utilizing International Photo voltaic Atlas).

How A lot Power Does One 200-Watt Photo voltaic Panel Produce?

On common, a 200W photo voltaic panel produces 0.81 kWh per day and 296 kWh per 12 months. Nevertheless, these numbers can fluctuate significantly relying in your location.

Under, we ready a desk with the common power produced by a 200W photo voltaic panel in several U.S. states, each day and yearly.

U.S. StatePVOUT Common Per Day (kWh/kWp)200W Photo voltaic Panel Common Power Manufacturing Per Day200W Photo voltaic Panel Common Power Manufacturing Per 12 months
Alabama 40.8 kWh292 kWh
Arizona4.90.98 kWh357.7 kWh
Arkansas 4.10.82 kWh299.3 kWh
California4.80.96 kWh350.4 kWh
Colorado 4.40.88 kWh321.2 kWh
Connecticut 3.40.68 kWh248.2 kWh
Florida 40.8 kWh292 kWh
Georgia 40.8 kWh292 kWh
Hawaii3.60.72 kWh262.8 kWh
Idaho 4.4 0.88 kWh321.2 kWh
Illinois3.90.78 kWh284.7 kWh
Indiana 3.80.76 kWh277.4 kWh
Iowa 40.8 kWh292 kWh
Kansas4.50.9 kWh328.5 kWh
Kentucky 3.90.78 kWh284.7 kWh
Louisiana 4.10.82 kWh299.3 kWh
Maine 3.60.72 kWh262.8 kWh
Maryland 3.90.78 kWh284.7 kWh
Massachusetts 3.80.76 kWh277.4 kWh
Michigan 3.60.72 kWh262.8 kWh
Minnesota3.90.78 kWh284.7 kWh
Mississippi 4.10.82 kWh299.3 kWh
Missouri 40.8 kWh292 kWh
Montana 40.8 kWh292 kWh
Nebraska 4.40.88 kWh321.2 kWh
Nevada 4.90.98 kWh357.7 kWh
New Hampshire 3.70.74 kWh270.1 kWh
New Jersey 3.90.78 kWh284.7 kWh
New Mexico5.21.04 kWh379.6 kWh
New York 3.40.68 kWh248.2 kWh
North Carolina 4.20.84 kWh306.6 kWh
North Dakota 4.20.84 kWh306.6 kWh
Ohio 3.70.74 kWh270.1 kWh
Oklahoma 4.40.88 kWh321.2 kWh
Oregon 4.30.86 kWh313.9 kWh
Pennsylvania 3.50.7 kWh255.5 kWh
Rhode Island 3.90.78 kWh284.7 kWh
South Carolina4.30.86 kWh313.9 kWh
South Dakota 4.20.84 kWh255.5 kWh
Tennessee 3.90.78 kWh284.7 kWh
Texas 4.40.88 kWh321.2 kWh
Utah 4.60.92 kWh335.8 kWh
Vermont 3.40.68 kWh248.2 kWh
Virginia4.10.82 kWh299.3 kWh
Washington 3.30.66 kWh240.9 kWh
West Virginia3.60.72 kWh262.8 kWh
Wisconsin 3.80.76 kWh277.4 kWh
Wyoming 4.60.92 kWh335.8 kWh
We’ve used the common each day PVOUT for every state (utilizing International Photo voltaic Atlas).

How A lot Power Does One 300-Watt Photo voltaic Panel Produce?

On common, a 300W photo voltaic panel produces 1.22 kWh per day and 444 kWh per 12 months. Nevertheless, these numbers can fluctuate considerably relying in your location.

Under, we ready a desk with the common power produced by a 300W photo voltaic panel in several U.S. states each day and yearly.

U.S. StatePVOUT Common Per Day (kWh/kWp)300 W Photo voltaic Panel Common Power Manufacturing Per Day300 W Photo voltaic Panel Common Power Manufacturing Per 12 months
Alabama 41.2 kWh438 kWh
Arizona4.91.47 kWh536.6 kWh
Arkansas 4.11.23 kWh449 kWh
California4.81.44 kWh525.6 kWh
Colorado 4.41.32 kWh481.8 kWh
Connecticut 3.41.02 kWh372.3 kWh
Florida 41.2 kWh438 kWh
Georgia 41.2 kWh438 kWh
Hawaii3.61.08 kWh394.2 kWh
Idaho 4.4 1.32 kWh481.8 kWh
Illinois3.91.17 kWh427.1 kWh
Indiana 3.81.14 kWh416.1 kWh
Iowa 41.2 kWh438 kWh
Kansas4.51.35 kWh492.8 kWh
Kentucky 3.91.17 kWh427.1 kWh
Louisiana 4.11.23 kWh449 kWh
Maine 3.61.08 kWh394.2 kWh
Maryland 3.91.17 kWh427.1 kWh
Massachusetts 3.81.14 kWh416.1 kWh
Michigan 3.61.08 kWh394.2 kWh
Minnesota3.91.17 kWh427.1 kWh
Mississippi 4.11.23 kWh449 kWh
Missouri 41.2 kWh438 kWh
Montana 41.2 kWh438 kWh
Nebraska 4.41.32 kWh481.8 kWh
Nevada 4.91.47 kWh536.6 kWh
New Hampshire 3.71.11 kWh405.2 kWh
New Jersey 3.91.17 kWh427.1 kWh
New Mexico5.21.56 kWh569.4 kWh
New York 3.41.02 kWh372.3 kWh
North Carolina 4.21.26 kWh459.9 kWh
North Dakota 4.21.26 kWh459.9 kWh
Ohio 3.71.11 kWh405.2 kWh
Oklahoma 4.41.32 kWh481.8 kWh
Oregon 4.31.29 kWh470.9 kWh
Pennsylvania 3.51.05 kWh383.3 kWh
Rhode Island 3.91.17 kWh427.1 kWh
South Carolina4.31.29 kWh470.9 kWh
South Dakota 4.21.26 kWh459.9 kWh
Tennessee 3.91.17 kWh427.1 kWh
Texas 4.41.32 kWh481.8 kWh
Utah 4.61.38 kWh503.7 kWh
Vermont 3.41.02 kWh372.3 kWh
Virginia4.11.23 kWh449 kWh
Washington 3.30.99 kWh361.4 kWh
West Virginia3.61.08 kWh394.2 kWh
Wisconsin 3.81.14 kWh416.1 kWh
Wyoming 4.61.38 kWh503.7 kWh
We’ve used the common each day PVOUT for every state (utilizing International Photo voltaic Atlas).

How A lot Power Does One 400-Watt Photo voltaic Panel Produce?

On common, a 400W photo voltaic panel produces 1.62 kWh per day and 592 kWh per 12 months. Nevertheless, these numbers can fluctuate significantly relying in your location.

Under, we ready a desk with the common power produced by a 400W photo voltaic panel in several states of the U.S., each each day and yearly.

U.S. StatePVOUT Common Per Day (kWh/kWp)400W Photo voltaic Panel Common Power Manufacturing Per Day400W Photo voltaic Panel Common Power Manufacturing Per 12 months
Alabama 41.6 kWh584 kWh
Arizona4.91.96 kWh715.4 kWh
Arkansas 4.11.64 kWh598.6 kWh
California4.81.92 kWh700.8 kWh
Colorado 4.41.76 kWh642.4 kWh
Connecticut 3.41.36 kWh496.4 kWh
Florida 41.6 kWh584 kWh
Georgia 41.6 kWh584 kWh
Hawaii3.61.44 kWh525.6 kWh
Idaho 4.4 1.76 kWh642.4 kWh
Illinois3.91.56 kWh569.4 kWh
Indiana 3.81.52 kWh554.8 kWh
Iowa 41.6 kWh584 kWh
Kansas4.51.8 kWh657 kWh
Kentucky 3.91.56 kWh569.4 kWh
Louisiana 4.11.64 kWh598.6 kWh
Maine 3.61.44 kWh525.6 kWh
Maryland 3.91.56 kWh569.4 kWh
Massachusetts 3.81.52 kWh554.8 kWh
Michigan 3.61.44 kWh525.6 kWh
Minnesota3.91.56 kWh569.4 kWh
Mississippi 4.11.64 kWh598.6 kWh
Missouri 41.6 kWh584 kWh
Montana 41.6 kWh584 kWh
Nebraska 4.41.76 kWh642.4 kWh
Nevada 4.91.96 kWh715.4 kWh
New Hampshire 3.71.48 kWh540.2 kWh
New Jersey 3.91.56 kWh569.4 kWh
New Mexico5.22.08 kWh759.2 kWh
New York 3.41.36 kWh496.4 kWh
North Carolina 4.21.68 kWh613.2 kWh
North Dakota 4.21.68 kWh613.2 kWh
Ohio 3.71.48 kWh540.2 kWh
Oklahoma 4.41.76 kWh642.4 kWh
Oregon 4.31.72 kWh627.8 kWh
Pennsylvania 3.51.4 kWh511 kWh
Rhode Island 3.91.56 kWh569.4 kWh
South Carolina4.31.72 kWh627.8 kWh
South Dakota 4.21.68 kWh613.2 kWh
Tennessee 3.91.56 kWh569.4 kWh
Texas 4.41.76 kWh642.4 kWh
Utah 4.61.84 kWh671.6 kWh
Vermont 3.41.36 kWh496.4 kWh
Virginia4.11.64 kWh598.6 kWh
Washington 3.31.32 kWh481.8 kWh
West Virginia3.61.44 kWh525.6 kWh
Wisconsin 3.81.52 kWh554.8 kWh
Wyoming 4.61.84 kWh671.6 kWh
We’ve used the common each day PVOUT for every state (utilizing International Photo voltaic Atlas).

It’s essential to level out that these numbers are solely tough estimations calculated utilizing the next:

Power Manufacturing Per Day = PVOUT (kWh / kWp) x Photo voltaic Panel Energy Ranking (kW)

“Actual-life” figures can differ considerably from the estimated numbers because of the many elements impacting photo voltaic panel power manufacturing.


Last Ideas

Photo voltaic panels are a good way to generate energy. They offer us the power to harness clear and renewable power.

As mentioned on this article, the quantity of power produced by a photo voltaic panel is dependent upon a number of variables, primarily the panel’s energy output and the placement/peak solar hours.

Due to this fact, precisely estimating photo voltaic panel power manufacturing isn’t a easy process.

Fortunately, these days, you may depend on glorious on-line instruments, equivalent to PV Watts (on-line calculator developed by NREL) and International Photo voltaic Atlas, which use photo voltaic irradiance information and photovoltaic energy information to offer extra correct estimations of photo voltaic power manufacturing.

We used PVOUT information from International Photo voltaic Atlas to calculate how a lot power a photo voltaic panel produces (of various wattages: 100W, 200W, 300W, and 400W) in every state of the U.S. and arranged the leads to tables to make issues simpler for you.

Should you nonetheless have questions on this subject, don’t hesitate to achieve out to us within the remark part beneath!

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