Solar Energy Battery Storage: Harness the Power of the Sun

Joe Brennan
Feb 12, 2023

Are you tired of the rising cost of electricity and feeling powerless over your energy consumption? Solar Energy Battery Storage could be your ticket to energy independence and financial savings. This transformative technology allows you to harness the sun’s power, store it, and use it when you need it most, providing a sustainable, cost-effective solution for your home. Join us as we explore the ins and outs of Solar Energy Battery Storage and how it can revolutionise the way Ireland consumes energy.

What is Solar Energy Battery Storage?

Solar Energy Battery Storage has emerged as a game-changing technology in the quest for sustainable energy. These systems, paired with solar panels, allow homeowners to store surplus solar energy for later use.

Let’s break it down: your solar panels convert sunlight into electricity during the day. If your solar panels produce more electricity than your home uses, the excess power can be stored in the battery. Then, during the night or overcast days when the panels aren’t producing electricity, you can use the power stored in the battery instead of drawing from the grid.

The solar energy storage system has two key components: a battery and a solar inverter. The battery stores the surplus energy, while the solar inverter converts the DC produced by the solar panels into AC, which your home appliances use.

Is Solar Battery Storage a Good Fit for My Home?

The decision to install a solar battery storage system depends on several factors. Firstly, the geographical location is essential. As a homeowner in Ireland, solar battery storage could be a wise investment if your house receives abundant sunlight throughout the year.

Secondly, the available space for solar panel installation is crucial. Solar panels need a significant area for installation, preferably a large, unshaded rooftop area that faces south.

Finally, it also depends on your commitment to sustainability and desire to decrease grid electricity dependence. If you want to lower your carbon footprint, solar battery storage can be a step in the right direction.

What Size Solar Storage Battery Do I Need?

The size of the solar storage battery you need primarily depends on your household’s electricity consumption and the output of your solar panel system.

A typical household in Ireland uses around 3,200 kWh per year. If we assume that a solar panel system can produce around 1,500 kWh per kWp (kilowatt peak), a 4kWp system could produce around 6,000 kWh in a year, which is more than enough for an average household.

However, the system’s actual output will depend on the solar irradiation levels in your area and the orientation and tilt of the panels. Thus, an energy audit by Going Solar can help determine the most efficient and cost-effective size for your solar battery storage system.

Can I Save Money with Solar Energy Battery Storage?

Investing in a solar energy battery storage system can indeed be financially rewarding in the long run. You can reduce your reliance on grid electricity by storing surplus solar energy. This stored power can be used during peak hours when electricity tariffs are usually higher, leading to considerable savings on electricity bills.

Moreover, the Irish government offers a Solar Electricity Grant, under which you can receive up to €2,400 for a solar PV system with battery storage. This can substantially offset your installation costs.

Key Factors to Consider Before Installing Solar Energy Storage System

Before you embark on your solar energy journey, here are some key factors to consider:

Energy Consumption

Understanding your household’s energy consumption patterns can help you appropriately size your battery storage system. The higher your energy use, the larger the battery storage system you need.

Solar Panel Output

The size and efficiency of your solar panel system will determine how much energy you can produce and store.


While installing a solar storage system can lead to significant long-term savings, the initial installation cost can be substantial. Assess your financial situation and consider the return on investment before proceeding.

Location and Space

Your property should have enough unshaded space for solar panel installation, preferably a south-facing roof. Your geographic location will also determine how much solar irradiation you receive, directly impacting your system’s efficiency.

Local Regulations and Incentives

Check your local solar panel and battery storage installation regulations. Also, be aware of any grants or incentives, like the Solar Electricity Grant, that could offset installation costs.

Do I Need Solar Panels to Install a Solar Battery?

Yes, the primary purpose of a solar battery storage system is to store the surplus energy generated by your solar panels. The solar panels generate energy, which the battery stores for later use. Therefore, a battery storage system is a broader solar panel system component and cannot function independently.

How to Install a Solar Battery Storage System?

Installing a Solar Battery Storage System is a complex process and should be carried out by professionals like Going Solar. The process includes several steps:

  • Energy Audit: This is done to assess your household’s energy consumption and determine the most suitable size for your solar battery storage system.
  • Site Assessment: A thorough site assessment is conducted to check the viability of installing solar panels and a battery storage system.
  • System Design: Based on your energy needs and the site assessment, a custom solar panel and battery storage system is designed.
  • Installation: The solar panels and the battery are installed at your property.
  • Connection: The system is connected to your home’s electrical system, and the operations are thoroughly tested.

Advantages of Solar Energy Battery Storage: A Sustainable Future for Ireland

Solar Energy Battery Storage offers a host of advantages that make it a compelling choice for homeowners:

  • Energy Independence: By storing surplus solar energy, you can reduce your dependence on the grid and enjoy greater control over your energy supply.
  • Lower Electricity Bills: Using stored solar energy during peak hours can save you significant amounts on your electricity bills.
  • Sustainable Energy Source: Solar energy is a clean, renewable source of energy that can help reduce your carbon footprint and contribute to a more sustainable future.
  • Uninterrupted Power Supply: In the event of a grid outage, your solar battery can supply power, ensuring your home never runs out of electricity.
  • Potential Revenue: With certain grid-tied systems, you can potentially sell excess energy back to the grid, earning you revenue and further reducing your energy costs.

Maximising Efficiency of Solar Battery System

To derive the maximum benefit from your Solar Battery System, here are some tips:

  • Monitor Energy Usage: Regularly monitoring your household’s energy usage can help you identify areas where you can cut back, thereby improving your system’s efficiency.
  • Maintain Your Solar Panels: Clean solar panels operate at maximum efficiency. Ensure that your panels are clean and free from shade or obstructions to maximize their power output.
  • Upgrade Insulation: By upgrading your home’s insulation, you can reduce your energy demand, allowing your solar battery system to operate more efficiently.
  • Use Energy-Efficient Appliances: Energy-efficient appliances consume less power, reducing the drain on your stored solar energy.
  • Charge During Off-Peak Times: If your system is grid-tied, consider charging your battery during off-peak times when electricity is cheaper, further maximizing your savings.

Join Ireland’s Solar Revolution with Going Solar

Ready to take a leap towards sustainability and cost savings? Solar Energy Battery Storage is your answer. As Ireland’s leading solar panel installation company, Going Solar is committed to guiding you through every step of your solar journey. Contact us today to revolutionise your home’s energy solution. Let’s harness the power of the sun together.

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Frequently Asked Questions

How long can batteries store solar energy?

The duration for which a solar battery can store energy depends on its capacity, the energy your home consumes, and the amount of sunlight your solar panels receive. Typically, a fully charged solar battery can power a home for anywhere between 10 and 48 hours.

What is the storage capacity of a solar battery?

The storage capacity of a solar battery varies greatly, depending on the specific model and make. Most home solar batteries have a capacity of 1-16 kilowatt-hours (kWh). To put it in perspective, an average Irish home consumes around 3.2 kWh per day.

How is solar energy stored in batteries?

Solar panels convert sunlight into DC electricity. This energy is sent to an inverter, which converts it into AC electricity for home use. When your solar panels produce more electricity than your home needs, the excess energy is sent to the battery for storage. The stored energy can then be used when the panels are not producing electricity, such as at night or during cloudy weather.

How much does a solar battery storage system cost?

The cost of a solar battery storage system can vary significantly based on the size, brand, and installation costs. On average, you can expect to pay between €5,000 and €7,000 for a solar battery in Ireland.

Can solar panels work without battery storage?

Yes, solar panels can work without a battery. The energy they produce will need to be used as it’s generated, or it can be sent back to the grid if your system is grid-tied. However, you won’t be able to store and use solar power without a battery when the panels are not producing electricity.

Can a solar battery be charged with electricity?

Yes, if your system is grid-tied, your solar battery can be charged with electricity from the grid. This might be beneficial during long periods of poor weather when your panels are not generating enough power. However, the primary purpose of a solar battery is to store surplus power generated by your solar panels.

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*FYI, parts of this blog post were drafted by artificial technlogy. But rest assured, it's been thoroughly researched, edited, reviewed and me & my team.
Author Fahad Zahid
Founder @ Going Solar

Joe Brennan, the founder of Going Solar, is dedicated to making solar power mainstream in Ireland and meet SEAI objectives. With a focus on affordability and sustainability, he is bringing renewable energy solutions to homes, reducing costs & environmental impact.