Going Solar

A Comprehensive Guide for Understanding Solar Fundamentals

PUBLISHED: Sep 11, 2024

A cleaner, more sustainable energy future isn’t an unattainable dream. Solar power can help it become a reality. 

 

Numerous advantages of solar energy are making more homeowners interested in using it to meet their energy needs. This guide lays out the fundamentals of solar energy. We’ll answer the most common questions we hear and provide you with the knowledge you need to embark on a solar-powered journey. 

 

And, don’t worry. It will be environmentally friendly AND financially savvy.

A aerial view of a neighborhood

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How Do Solar Panels Work?

Solar panels, also known as photovoltaic (PV) panels, are the vehicles that make solar energy solutions work. These panels convert sunlight directly into electricity through a process called the photovoltaic effect. 

 

Each solar panel is composed of numerous solar cells, typically made from silicon, which absorb particles of light (photons) from the sun. When these photons are absorbed, they release electrons from the atoms within the solar cells, generating an electric current. This current is then captured and saved to power various energy needs.

 

This electricity can be used to power your home, which reduces your reliance on traditional grid-supplied electricity and lowers your energy bills.

Solar Panel Size

One common question homeowners ask about is the size of solar panels. What size do they need? They can vary, but the most commonly used residential solar panels are around 65 inches by 39 inches. However, the power output of a solar panel is more crucial than its physical size. This power output is measured in watts (W) and can range from about 250W to over 400W per panel.

 

The number of panels you'll need depends on your energy consumption and the amount of sunlight your home or business receives. You need to consider your available roof space when you’re trying to decide on solar panel sizes. A professional solar installer can help you determine the optimal panel size and quantity based on your energy goals and roof dimensions.

Best Battery Chemistry for Solar

Solar panels are most effective when the sun is shining, but what about cloudy days or at night? These times are when energy storage comes into play. Batteries can store excess energy generated during the day to use during less sunny periods. The choice of battery chemistry is crucial for long-term performance and safety.

 

As far as the best battery chemistry for your solar system goes, lithium-ion batteries are a popular choice. They offer high energy density, efficiency, and a relatively long lifespan. These batteries can power your home during the evening and even during power outages, providing you with a continuous and reliable source of electricity.