6kW Solar System with Battery UK: Price, Produce, Savings

6kw solar system with battery uk price produce

Solar energy has emerged as a sustainable and eco-friendly solution to power our homes and reduce our carbon footprint. In the United Kingdom, where sunlight may not be as abundant as in some other regions, a 6kW solar system with a battery is gaining popularity.

This comprehensive guide will delve into the details of what a 6kw solar system with battery UK entails, how much electricity it can produce, the cost associated with it, potential savings, the required roof space, and whether it is suitable for a family's energy needs.

6kw solar system with battery

What is a 6kW Solar System with a Battery in the UK?

A 6kW solar system with a battery is a renewable energy setup designed to harness solar power and store it for later use. This system consists of solar panels, an inverter, and a battery storage unit. In the UK, where sunlight hours can be limited, the inclusion of a battery is crucial. Solar panels capture sunlight and convert it into electricity, which is then either consumed immediately or stored in the battery for use during cloudy days or at night. The 6kW rating indicates the system's capacity to generate 6 kilowatts of electricity per hour under optimal conditions.

How Much Electricity Will a 6kW Solar System with Battery Produce?

The electricity production of a 6kW solar system with a battery varies depending on several factors:


The amount of sunlight a region receives plays a significant role in electricity production. In the UK, solar irradiance levels are lower compared to sunnier regions, which means that a 6kW system will produce less electricity per year.

Orientation and Tilt

The angle and orientation of the solar panels also affect their efficiency. For optimal results in the UK, panels are usually installed facing south at an angle of around 30-40 degrees.

Weather Conditions

Cloudy or rainy weather can reduce a solar system's output significantly. The battery is especially valuable during such periods, as it can supply power when the panels are producing less or none at all.

On average, a 6kW solar system in the UK can produce around 4,800 to 5,400 kWh of electricity per year, which can cover a significant portion of a typical household's energy needs.

How Many Solar Panels Are Needed in a 6kW Solar System?

The number of solar panels required for a 6kW system depends on the panel's wattage and efficiency. On average, 6kW systems in the UK typically consist of 18 to 24 solar panels, each with an output of around 300 to 330 watts. These panels are usually arranged in rows on the roof, taking into consideration the available space, orientation, and shading to maximize energy production.

BLUETTI's product series encompasses two key components: solar batteries and solar panels. These components work together seamlessly to harness and store solar energy efficiently. Here are some key highlights of BLUETTI's offerings:

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Solar Batteries

BLUETTI's solar batteries come in a wide range of capacities, from 2kWh to 12kWh. This diversity allows consumers to choose a battery size that aligns with their specific energy storage needs. Whether you require a smaller capacity for occasional use or a larger capacity for extended off-grid living, BLUETTI has options to suit your requirements.

Solar Panels

Complementing their solar batteries, BLUETTI offers high-quality solar panels that efficiently capture sunlight and convert it into electricity. These panels are designed for both outdoor and home use, ensuring flexibility in how you harness solar energy. With the right combination of solar panels and battery capacity, you can significantly reduce your reliance on grid electricity.

Off-Grid Living

BLUETTI's products are well-suited for those who aspire to live off-grid or reduce their dependence on traditional energy sources. Whether you're looking to power your remote cabin, go camping, or minimize your carbon footprint at home, BLUETTI's solar solutions provide the autonomy and sustainability needed to achieve these goals.

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How Much Does a 6kW Solar System with Battery Cost?

The 6kw solar system with battery UK price varies based on several factors, including:

Quality of Components

High-quality solar panels, inverters, and batteries may come at a higher initial cost but can provide better performance and longevity.

Installation Costs

Labor and installation costs can vary depending on the complexity of the installation, roof type, and location.

Government Incentives

In the UK, there are government incentives such as the Smart Export Guarantee (SEG) and the Renewable Heat Incentive (RHI) that can offset some of the installation costs and provide income for excess electricity generated.

In addition to the existing government incentives mentioned earlier, it's important to highlight that in the UK, a 6kW solar system (without a battery) typically costs around £8000, including installation and VAT. This cost estimate underscores the significance of government incentives in making solar energy more accessible and cost-effective for homeowners. These incentives can help offset a substantial portion of the initial investment and accelerate the payback period for solar installations.

With the cost of solar technology becoming more competitive and the potential for long-term savings on energy bills, the combination of affordable solar systems and government incentives creates a compelling case for individuals and families to embrace solar energy as a sustainable and financially prudent choice for powering their homes.

How Much Can I Save with a 6kW Solar System with Battery in the UK?

The potential savings from a 6kW solar system with a battery in the UK depend on various factors:

Energy Consumption

Your household's energy consumption plays a crucial role in determining savings. The more electricity you use, the more you can save by generating your power.

Feed-in Tariff or SEG Payments

Under the SEG or its successor programs, you can earn money by exporting excess electricity to the grid. The rates vary, but it provides an additional source of income.

Energy Storage

The battery allows you to store excess electricity for use during peak demand times or when solar production is low. It can reduce your reliance on grid electricity and further increase savings.

Maintenance Costs

Solar systems generally have low maintenance costs, contributing to long-term savings.

Over the long term, a 6kW solar system with a battery can lead to significant savings on your electricity bills. It's not uncommon for homeowners to see a return on investment in 6 to 10 years, with continued savings throughout the system's lifespan.

How Much Roof Space Do You Need for a 6kW Solar System with Battery in the UK?

The amount of roof space required for a 6kW solar system in the UK depends on the efficiency and size of the solar panels, as well as the local solar irradiance. On average, you'll need approximately 30 to 40 square meters (322 to 430 square feet) of unshaded roof space for the installation of 6kW of solar panels. However, this is a general estimate, and it's essential to have a professional installer assess your specific roof to determine the exact space required.

Is a 6kW Solar System with a Battery Enough for a Family?

Whether a 6kW solar system with a battery is sufficient for a family depends on the family's energy consumption. On average, a 6kW system can cover the electricity needs of a medium-sized household, but more is needed for larger families with high energy demands. To determine if it's suitable for your family, consider the following factors:

Energy Usage

Assess your household's daily energy consumption to ensure it aligns with the system's output. You can check your past electricity bills for reference.

Battery Storage

The inclusion of a battery can enhance the system's capacity to meet your energy needs, especially during non-sunny periods.

Energy Efficiency

Implementing energy-efficient practices and appliances can reduce your overall energy consumption, making it easier for a 6kW system to meet your needs.

If you have a larger household with substantial energy demands, consider a larger solar system or a combination of solar and other renewable energy sources to meet your requirements effectively.


When considering the adoption of a 6kW solar system with a battery in the UK, it's essential to explore reputable brands and solutions that can offer both efficiency and reliability. One such brand that deserves attention is BLUETTI, which offers a range of solar battery and solar panel products designed to empower individuals and families to live a sustainable and off-grid lifestyle.

BLUETTI's product series encompasses two key components: solar batteries and solar panels. These components work together seamlessly to harness and store solar energy efficiently.

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