How Do Solar and Batteries Work?

Understanding how solar and battery systems work isn’t as complicated as it might seem. When you break it down, it becomes quite simple and approachable. Once you get the hang of it, you’ll see how it all comes together to help you save money and gain energy independence. It’s a fascinating journey into smarter energy!

Step 1: Sunlight transforms into electricity.

Solar panels consist of photovoltaic (PV) cells that capture sunlight and convert it into electricity. However, this electricity is in direct current (DC) form, which is not the type used in homes.

Step 2: The inverter performs its function.

The solar-generated DC power flows to your inverter, which converts it into AC (alternating current), the standard form of electricity used by your lights, appliances, air conditioning, and other household devices.

Step 3: Your home uses solar power first.

Great news! Once your home is set up with solar power, it’ll always prioritise using your solar energy first. It’s all automated, so you don’t have to worry about switching things around. If your solar panels are generating enough power to meet your needs, you’re basically living off the grid, soaking up the sunshine!

Step 4: Extra power is stored in your battery bank.

If your solar system generates more electricity than your home requires at a given time, the excess power can be utilised in several ways:

1. Charging your battery (if you have one), enabling you to utilise that stored energy later, particularly beneficial after sunset.

2. Returning the excess electricity to the grid (if permitted in your city), resulting in a small credit from your energy retailer known as a feed-in tariff.

Step 5: When solar alone isn’t enough.

In the event that the sun is not shining or your power consumption exceeds the capacity of your solar system and battery, your home will automatically draw electricity from the grid. This process is seamless and requires no manual intervention.

What does this mean for you?

Using more solar energy at home means you’ll use less electricity from the energy company, which is great! With electricity prices always going up, saving money on your bill is a big win.

Adding a battery is a smart move. It lets you store extra power for later, so you don’t have to buy it at a higher price. Plus, it gives you a bit of energy independence, especially when the power goes out (we’ll chat more about that later!).

How Does Solar Actually Save Me Money?

The main goal is to use less electricity from the grid.

When your home is equipped with solar power, you significantly reduce or eliminate the need to purchase electricity from the traditional power grid. This is because solar panels convert sunlight into electricity, which can power your home directly.

Additionally, by incorporating a battery storage system, you can store excess solar energy generated during the day. This stored energy can then be utilised during nighttime or cloudy days when solar panels are not producing electricity. This synergy between solar panels and battery storage not only helps in reducing your reliance on the grid but also contributes to substantial savings on your electricity bills over time.

While it is important to acknowledge that no solar power system is entirely flawless and you may still need to draw some electricity from the grid occasionally, a well-designed and efficient solar power system can lead to significant reductions in your energy expenses. Over the years, these savings can accumulate, providing you with greater financial flexibility and a sense of control over your energy consumption. By investing in solar power, you are not only making a financially sound decision but also contributing to a more sustainable and environmentally friendly energy future.

How Do Batteries Work?

Imagine a solar battery as a reservoir for electrical energy. When your solar panels generate more electricity than your household requires, the surplus is stored within the battery. This stored energy becomes a valuable resource during times when your panels are not producing enough power, such as at night or on overcast days, allowing your home to utilise the stored electricity rather than relying on purchasing it from the grid.

This process is seamless and efficient, thanks to the sophisticated energy management system integrated into the battery. This system automatically monitors and controls the flow of electricity, ensuring that energy is stored when it is abundant and utilized when it is needed.

In the event of a power outage, the functionality of your solar battery can be tailored to your specific needs. Depending on the installation and configuration of your battery system, it can be programmed to power essential appliances like lighting, Wi-Fi, and refrigeration. Whether you are looking for minimal backup power or a comprehensive off-grid solution, we can guide you through the possibilities and help design a system that meets your requirements.

Do I Need a Battery?

In Africa, many households and businesses have successfully utilised solar power without batteries, resulting in substantial savings. However, if your primary objective is to minimise reliance on the grid or ensure backup power during outages, a battery system becomes a more practical solution.

Ultimately, the decision hinges on your specific goals. Therefore, we do not adopt a one-size-fits-all approach. Your individual objectives, budget, and usage patterns are pivotal in determining the system we design for you.

What Happens If There’s a Power Outage?

If your solar system lacks a battery, it will automatically shut down during a power outage. This safety measure is in place to protect grid workers and your appliances from accidental power surges that could occur while maintenance crews are working on the grid.

However, if you have a battery installed, you are better equipped to handle power outages. We will install a battery changeover switch and collaborate with you to determine which essential circuits should be backed up. This may include lighting, your modem, refrigerator, or garage door. Larger appliances such as air conditioning or pool pumps typically remain off during a blackout unless you have a substantial battery system.

Still Have Questions?

We understand that there are many factors to consider, and every household is unique. If you’re contemplating solar power or battery storage, we’ll assist you in comprehending the options through a comprehensive assessment and a customised system design that aligns with your specific needs.