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8kW Solar System

The Essential Part of Installing a Solar PV System is Determining the Right Size

The essential part of installing a solar PV system is determining the appropriate size for your needs. To determine the best size, there are several factors that you should carefully consider. These factors include your energy consumption, the number of people living in your house, your budget, and the available roof size.

For houses that consume approximately 8000kWh annually, an 8kW solar system is well-suited. Larger houses tend to consume more electricity than the average, resulting in higher electricity bills. By installing an 8kW solar system, these larger houses can save more on their electricity expenses compared to an average-sized house. Additionally, small businesses that use less than 8000kWh of electricity annually can also benefit from this system.

Regarding the price of the system, an 8kW solar system price in UK is approximately £13,000 to £14,000, including the inverter, mounting structure, and installation costs. While the initial cost may seem high, this system has the capacity to provide sufficient electricity for a large home with approximately 8-10 occupants. However, the actual cost can vary depending on the brand of solar panels, the type of installation, and the addition of batteries. If you plan to add batteries for backup purposes, the cost of an 8kW solar system with batteries in UK will be around £25,000.

8kw solar system uk
Caption – 8kw solar system price

Is there anything you are concerned about regarding the 8kW solar system with batteries in UK? MAK Energy is always here to assist you and answer all your queries. Take advantage of our free quote, online survey, and significantly lower prices compared to the market.

What is 8kw Solar System?

An 8kW system can generate 7000 to 8000kWh annually. On average, an 8kW solar system produces 28-32kWh, which is sufficient for large houses or small businesses such as offices, supermarkets, and warehouses with moderate energy consumption. In the UK, an 8kW solar system includes solar panels, an inverter, and 8kw battery storage (in the case of installing a hybrid 8kW solar system). The 8kW solar system price in UK ranges between £13,000 and £14,000.

How Much Does a 8kw Solar System in UK Cost?

On average, an 8kW solar system price in UK, including mounting structure and installation charges, will be approximately £13,000 to £14,000. This comprehensive system consists of 20 solar panels, each with a capacity of 405 watts, and an 8kW inverter that efficiently converts DC to AC for household usage.

8kW solar system uk price
Caption – 8kw solar system price without battery

However, it’s important to consider that the price of an 8kW solar system UK may increase if you opt for higher quality or branded solar panels and inverters. Rest assured, the provided price range is an estimate, and in most cases, the cost will fall within this range. and the price for an 8kW solar system with batteries in UK typically ranges from £24,000 to £25,000.

How Much Does a 8kW Solar System Produce per month?

An 8kW solar system in UK can generate approximately 7000 to 8000 kWh per year, with an average monthly generation ranging from 700 kWh to 900 kWh. It’s important to note that the actual generation may vary based on factors such as the number of sun hours your panels receive, the location of the solar system, and the performance of the components used in the system. Nevertheless, an 8kW solar system in UK will still be more than sufficient to produce electricity for both large houses and small businesses.

How Much Does a 8kw Solar System with Batteries Cost UK

An 8kW solar system with batteries in UK offers flexibility and the cost will depend on the number and capacity of the batteries you choose to add. On average, an 8kW solar system is paired with two 5.2kWh batteries, with each battery priced at approximately £5,500. Thus, the total cost for two batteries amounts to around £13,000. And the total cost for the system with batteries will typically between £24,000 and £25,000. 

8kw solar system with batteries uk price
Caption – 8kw solar system with batteries price

It’s important to consider your energy consumption needs during the night when determining the number of batteries required. Adding more batteries will increase the overall cost of the system, but it provides greater energy availability during periods of high demand.

How Many Batteries Does an 8kw Solar System Take?

The incorporation of batteries with an 8kW solar panel system is contingent upon your energy requirements and the capacity of each individual battery. On average, a common practice in the UK is to use two 5.2kWh batteries alongside an 8kW solar system. However, you also have the option to include a single 10kWh battery or a multiple 3.2kWh battery.

For optimal performance and efficiency, it is generally recommended to add two 5.2kWh batteries when considering battery storage for an 8kW solar system. This configuration strikes a balance between cost-effectiveness and energy storage capacity. Nonetheless, if your night-time energy demand is high, you have the freedom to include as many batteries as you desire with your 8kW solar system in UK. And the cost for 8kw solar panel system with batteries in uk will also increase.

How Many Solar Panel Do I Need for 8kw Per Day?

The number of solar panels required for an 8kW solar system depends on the size of each panel. Typically, a 405-watt solar panel is used. For an 8kW solar system, you will need a total of 20 solar panels, with each panel having a capacity of 405 watts.

8kw solar system panels

However, it’s important to note that if you opt for smaller or larger-sized panels, the number of panels needed will vary accordingly. Choosing different sizes of solar panels will either increase or decrease the overall quantity required for your 8kW solar panel system.

Can a 8kw Inverter Run a House?

Yes, an 8kW inverter can run a house in most cases. The amount of electricity that an 8kW inverter can produce will depend on the size and efficiency of the solar panels, the amount of sunlight in your area, and the tilt and orientation of your roof. However, in general, an 8kW inverter can produce enough power to meet the needs of large house.

The average annual electricity consumption for a UK household is around 3,500 kWh. An 8kW solar system can produce between 7,000 kWh and 8,000 kWh of electricity per year with 8kw inverter, so it could potentially meet the needs of large homes in the UK. However, if you consume less electricity than what your solar panels produce, opting for an 8kW battery storage system is an excellent backup option. The 8kW solar system with batteries cost will typically range from £24,000 to £25,000.

How Much Roof Space Do I Need for 8kw Solar System in the UK?

The amount of space you need for an 8kW solar panel system installation will depend on the size and efficiency of the solar panels you choose. However, in general, you will need between 45 and 60 square meters of roof space for an 8kW solar system.

The following factors will affect the amount of space you need for your solar system:

The Size of the Solar Panels

The size of the solar panels can impact the space they will cover. If you choose smaller-sized solar panels, you will need a higher number of panels, which will require more space for installation. On the other hand, opting for larger-sized panels will decrease the number of panels needed but will also reduce the overall space required for installation.

The Efficiency of the Solar Panels 

Some solar panels are highly efficient. If you install a larger-sized solar system with these efficient panels, the number of panels required will decrease, and they will cover less space. Conversely, if the panels are less efficient, you will need more solar panels, and they will cover more space.

The Spacing Between the Solar Panels

You will need to leave some space between the solar panels to allow for airflow. This will help to prevent the solar panels from overheating.

What is an 8kw Solar Battery Price?

The 8kW solar battery price is difficult to specify due to the unavailability of a specific 8kW solar battery model. Typically, a 5.2kWh solar battery is used in conjunction with an 8kW solar system in the UK. Therefore, we can estimate that an 8kW solar battery price would be around £11,000 to £12,000, as the cost of two 5.2kWh batteries is similar. However, if a battery is found elsewhere, the 8kwh solar battery price is expected to be around £10,000.


The 8kW solar system price in UK may initially seem high, but it is a worthwhile investment for large houses. Large houses often incur high monthly electricity bills, but with an 8kW system and 8kW battery storage, they can save thousands of pounds each month. If you are unsure about your consumption, take a look at your electricity bill and assess whether you fall into the category of those who consume approximately 7000kWh to 8000kWh annually. The estimated 8kW solar system price in UK is around £13,000 to £14,000. However, with the inclusion of a storage system, the 8kW solar system with batteries cost in UK will be approximately £24,000 to £25,000.

The 8kW solar system is commonly used for large houses and small businesses. At MAK Energy, we can assist you in transitioning to a solar PV system with the most reasonable price in the country. We are a certified MCS installer with extensive experience in installing challenging systems across various sites. Contact us for more information, a free quotation, and a complimentary online survey.

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Andy Camroux
Andy Camroux
Google Review
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Many thanks to Mubashar for the installation of the LG RESU Plus and additional solar battery. After the initial hiccup, the new setup seems to be working well with both batteries charging.
Ruth Matthews
Ruth Matthews
Google Review
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Reliable and trustworthy. MAK Energy fitted our photovoltaic installation in 2011. Their advice is very sound. They are experienced and knowledgeable, their expertise is evident, their communications are excellent, and they did not try and sell us technology which would not have been cost effective. Recently the inverter needed renewing as is standard after more than 11 years and they supplied and fitted a new one within days of us contacting them. They can also monitor the system’s performance remotely now and we will both be notified if any faults should develop in the future. We approached a more local company for a quotation for the same job and their quotation was nearly five times as much. The other company also recommended upgrades incompatible with our system. We would go back to MAK energy every time.
Scott Holmes
Scott Holmes
Google Review
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Great advice and installation by Mubashar. The Huawei hardware is an impressive bit of kit and takes up little room with its slim line battery. I would recommend MAK energy for a solar installation.
Eva L Beckwith
Eva L Beckwith
Customer Review
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We were very satisfied with our Solar P.V. installation by MAK Energy. Everyone involved in the process was courteous and efficient. We were kept informed at every stage during planning and installation. When we decided to invest in Solar P.V. panels, we wanted a local, dedicated installer, not a double-glazing company that installs panels as a sideline. Because of its locality MAK Energy was ideal for our installation. We would not hesitate to recommend MAK Energy to anyone thinking about investing in solar power.