Skip to main content

What is Sun Number Score and How You Can Find it For Your Residential Solar Panel?



People planning to buy solar panels should understand the term “Sun Number Score” or "Sun Number Rating" developed through a partnership with Zillow with the help of the U.S. Department of Energy's SunShot Grant to promote renewable energy. Finding the solar score of your home is essential in determining whether your home is perfect for solar energy system installation. Keep on reading to learn what a sun number is and how to calculate it for your home.

What is a Sun Number?

It is a number between 0 and 100 that shows a home’s solar potential and how appropriate it is for rooftop solar and on ground solar services. The higher the sun number score is, the better your home is suited for solar panel installation and solar inverter. Using this score, you can easily understand your home’s ability for producing solar energy without learning all the unwanted solar industry terminologies or jargon.

What is a Good Sun Number?

Achieving a score of 100 sun number is not possible for all homes. It is a very rare case. A score of 70 or higher is considered well for a home also it can assure excellent financial savings in the long term. The number above 70 indicates that solar is a worthwhile investment for your building. Keeping into account the high installation costs of a solar system, any financial savings will boost the system’s ROI.

What Factors Affect the Sun Number Score?

The sun number score is the combination of the following factors –

1.       Building score

The building solar score makes up for the majority of the complete sun number score. It has a maximum score of 80 points while a score less than 50 is not considered fine. The residential building is analyzed based on the roof orientation, roof shading, roof size, and roof pitch.

2.       Local climate score

Determining the regional climate score is essential no matter whether you’re interested in solar street light installation, rooftop panels, or other solar systems. The amount of sunlight that hits the surface of the solar system directly affects the amount of solar energy that a system generates. Seasonal weather patterns and climatic conditions play a significant role.

For example, if you live in regions with tall trees and large buildings, the sun number score would be lower. To calculate the regional climate score of your local region, consider the solar irradiance data from NREL, a short of the National Renewable Energy Laboratory website.  

3.       Solar cost score

It is the smallest contributor that takes into account the cost of solar installation in your local region. The maximum solar cost score of 4 means low solar installation costs in your area.

4.       Electricity rates score

The maximum electricity rate score of 8 means the higher sun number of your home’s solar investment. A lower sun number means low electricity rates and a higher sun number means higher average electric rates.

So, find your home’s sun number score to find the suitability of a solar investment.

Comments

Post a Comment

Popular posts from this blog

What is Solar Net Metering in India and Its Advantages?

  When it comes to residential or commercial rooftop solar panel installation, there are several things that a consumer must take into consideration. Net metering is one of those important concepts as it can benefit both solar energy users and the grid. In this post, you’ll dive deep into the solar net metering concept in India and associated things.     What is Solar Net Metering and its Working? Solar Net Metering, NEM, or net energy metering is a utility/electricity billing mechanism that allows residential and commercial users to get credits for the unit of electricity they send back to the main grid. In simple terms, when solar panels generate electricity more than required, the user can send the surplus electricity back to the grid. This helps solar energy consumers pay just for the net power used, thereby enjoying a good cost saving through solar power . Now that you know what net metering policy is, let’s learn about how it works. Solar panels work mor...
Post a Comment
Read more

Is it easy to get solar panels repaired and replaced?

Solar panel installation is the new normal and homeowners prefer installing it for cost saving through solar power . Moreover, it is very feasible to get installed as per your power requirements and consumption. However, the important factor to consider is to know when to get your installed solar panels repaired. As many homeowners do not know when to get it done, leading to inefficient power generation and reduced capacity of solar panels.  Therefore, it becomes important to know the factors that impact the durability and efficiency of solar panels. These factors may adversely impact power generation through solar panels. The blog contains relevant details, let’s take a look. Factors Impacting Solar Panels Lifespan- Multiple factors impact the overall functionality of solar panels. Therefore, homeowners should understand when to ensure the repairing and replacement of solar system . Let’s take a look- 1. Manufacturing Quality One of the important factors that impact the functional...
Post a Comment
Read more

Thinking of Investing in Solar Power? Here’s Your Guide

  Are you planning to invest in rooftop solar panel installation in your home? Can’t understand how to make this process convenient and hassle-free? Learn the essential steps in this guide.   Assess Your Electricity Bill Determine the average of last year’s electricity bill to check the electricity consumption of your property. Based on the monthly usage in kWh, you’ll come to know the size and number of solar panels you will require. Understand Your Home’s Solar Suitability Be sure your home is right for solar installation based on different factors like location, shady things, roof conditions, weather conditions, and average sunlight hours. Choose the Right Solar System and Installer Selecting the right solar system is pivotal for optimal solar power production. Choose a model that has improved energy efficiency, warranty, and ratings. Hire the best rooftop solar system installers in Delhi NCR who offer a customized and comprehensive range of services with all-t...
Post a Comment
Read more