What is the peak sun hour?
The peak sun hour is 1 hour of sunlight at an intensity of 1,000W/m² (92.9W/ft²).
The power rating of solar panels is also measured at 1,000W/m² (92.9W/ft²).
In other words, solar panels placed perpendicular to the direction of sunlight exposure will only output at their rated power when the sunlight exposure intensity reaches 1,000W/m² (92.9W/ft²).
As you know, the sun’s rays only have a chance to reach their maximum intensity during the midday hours. Maximum irradiance up to 1,360W/m² (127.8W/ft²).
But Peak sun hour is not just about the energy gained during the noon hour. It is the sum of all tPeak sun hour is the equivalent value of all the solar energy received during a day.
What can be done with peak sun hour?
The peak sun hour is especially important for DIY solar power system. After planning the total power, you need to calculate how many panels you need based on the peak sun hour of your location.
For example, you want to design a solar power system that can produce 6kWh per day. You plan to use 200W of solar panels. The peak sun hour in your area is 3 hours. Then you need 6kW/(200W x 3) = 10 panels.
Peak Sun Hour in Major UK Cities
|Cities||Peak Sun Hour(PSH)|
|Kingston Upon Hull||2.5|
|New Castle Upon Tyne||2.5|
Any question and inquiries please send email to email@example.com, we answer quickly.
Since 2019, as long-life, deep-cycle lithium iron phosphate (LiFePO4) cells begin to be used in solar energy storage and the price of solar panels continues to fall, more and more homes are installing…
In post “How to Quickly Identify Fake LFP Battery Cells Part 3 – QR Code“, we introduced the way to parse the QR code on the LiFePO4 battery cells. According to the rules of QR code parsin…
EVE deep cycle lithium iron phosphate(LiFePO4) battery cell are mainly applied into RV/boat/solar energy storage station system. Using them you can easily set up your own 12V，24V，48Venergy storage sys…
How to calculate battery pack power? For DIYers planning to build a solar energy system, determining solar panel power and battery pack power is the first step. The most cost effective battery pack so…
With LiFePO4 battery cells becoming available in the retail and wholesale markets, DIY LiFePO4 battery packs are starting to become more and more popular. For users who are trying to DIY LiFePO4 batte…
We created this battery power consumption calculator to make it easy for you to calculate the battery life. You may be planning to DIY a battery pack using the LiFePO4 battery cells we provide. This c…