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6kW Solar System

6kW Solar System is Suitable for How Many Family Members?

A 6kW solar system is suitable for large homes or a family of more than 5 people. However, it’s important to consider the roof space required for installation. To accommodate the 6kW solar panel system, you must have at least 38m² of free space on your roof. This system will generate enough electricity to meet your home’s needs and save you hundreds of pounds on your monthly energy bills.

In terms of price, a 6kW solar system in UK, including the inverter, installation costs and mounting structure, ranges between £7,000 and £8,000. The cost for a 6kW solar system with battery in UK is approximately £12,000. However, the actual cost can vary depending on factors such as the type of battery selected and its capacity.

MAK Energy is available to assist you if you’re planning to install a 6kW solar PV system at your place. You can benefit from our free quote, free online survey, and professional advice provided by our skilled and experienced installers across the UK.

What is 6kW Solar System?

A 6kW system is a solar power system capable of generating up to 6000 watts of electricity. On average, a 6kW solar system will generate between 4800 to 6000 kWh annually, which is sufficient to power a larger house in the UK with 5-6 occupants. A typical 6kW system consists of solar panels, a 6kW inverter that converts solar energy (DC) into usable electricity (AC), and optionally, batteries for storing excess energy for later use. However, it’s important to note that the addition of batteries will increase the overall cost of the system.

System SizePanel WattageNumber of PanelsEstimated Annual SavingsEstimated Savings after 25 yearsEstimated Upfront CostRoof Space
6KW Panel System250 watt24£1,050£25,000 – £27,000£7,000-£8,00038 m²
6KW Panel System Without Battery250 watt24£1,000 – £1,100 £25,000 – £27,000£7,000-£8,00038 m²
6KW Panel System With Battery250 watt24£1,050 – £1,200 £25,000 – £30,000£12,00038 m²

6kw solar system

How Much Power Does a 6Kw Solar System Produce?

A 6kW solar system in UK can generate approximately 4800 to 6000 watts of electricity annually. However, the exact amount of power generation from a 6kW solar system in UK depends on multiple factors, including the number of sun hours your roof receives, the orientation of your solar panels and the quality of the components used in your solar PV system.

How Much Can I Save with a 6kW Solar System?

The amount of money you can save with a 6kW solar system in UK depends on several factors, including the daily electricity generation of your system, your electricity consumption, whether you have added a battery storage for backup and the number of sun hours your solar PV system receives. In general, homeowners in the UK who install a 6kW solar panel system can save over £1,000 annually.

What Benefits Can I get by Installing 6Kw Solar System in the UK?

Solar systems, regardless of their size and capacity, offer various benefits to the owner, including savings on energy bills, clean electricity production, energy independence, increased property value, and more. Here is a list of benefits you can enjoy by installing a 6KW solar system at your home.

  • Payback period of approximately 5 years after installation
  • Nearly free electricity production for the next 20 years
  • Increased property value
  • Enhanced energy independence
  • Minimal maintenance expenses

How Much Does an Average 6KW Solar System cost without battery?

A 6kW solar system costs approximately £7,000 to £8,000. This system includes 15 solar panels, each with a capacity of 405 watts, and a 6kW solar inverter that converts DC power to AC for household usage. However, it is important to note that the actual cost of a system may vary depending on the product brands you choose.

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

It is quite challenging to determine the exact 6kW solar system with battery price in UK. However, on average, a 6kW system with a 6kW solar inverter and a 6kW solar battery will require an estimated investment of £12,000. It’s important to note that the price of a 6kW solar system with battery in UK may increase if you opt for a high-quality battery or one with a higher capacity. Keep in mind that you may need to replace the batteries after approximately 10 years, as most batteries come with a 10-year warranty. Nevertheless, this investment is still cost-effective.

6KW Solar Battery Storage Price in UK

Multiple brands offer different quality options for 6kW solar batteries in the market. Consequently, the price can vary based on factors such as the battery’s quality, brand and capacity. Typically, a 5kWh battery is used with a 6kW system, and it is available in various models and brands. The price range for such batteries is typically between £5,000 and £11,000, depending on the specific brand you choose.

6kw solar system with battery uk

Best 6Kw Solar Battery Storage in the UK 

The most suitable batteries for a 6KW solar system in the UK are the Huawei 5.2KWh and Tesla 5KWh options. Huawei batteries often rank as the first choice for 6KW solar panel owners because of their exceptional efficiency, longer lifespan, and budget-friendly pricing.

While Tesla batteries are considered among the best, their higher price range might not make them the automatic pick for everyone. You’ll also find additional 6KWh solar battery storage options listed in the tables below, all known for their good quality and efficiency.

Battery BrandCostUsable Capacity (kWh)Battery Material
Tesla PowerwallFrom £11,00013.5 kWhLithium-ion
HuaweiFrom £4,5005.2kWhLithium-ion
LG Chem RESU 6.5From £5,500 – £70006.5 kWhLithium-ion
SolaX 3.3From £4,0103.5 kWhLithium-ion
Powervault 3From £4,470 – £50004 kWhLithium-polymer

6KW Solar Inverter

In the entire solar system, the inverter plays a crucial role in ensuring efficient operation. Therefore, when selecting a 6kW inverter, it is important to choose wisely in order to maximize the conversion of DC power into usable AC current for valuable energy consumption. Several reputable brands offer reliable 6kW inverter, including Fronius 6kw solar inverter, SMA, SolarEdge, GoodWe  6kW solar inverter, and Victron Energy. These brands are well-known for their performance and compatibility with solar systems.

6KW Solar Inverters: Which Type Is Right for Your PV System?

String inverters are not only the most common but also the most budget-friendly choice for your 6KW solar system. Their job is to transform the DC power generated by your solar panels into the AC power that powers your home or business. These inverters are usually centrally located, often in places like your attic or basement.

Now, when it comes to selecting a string inverter brand, we always recommend going for the best. And among the options out there, Fronius solar inverters truly shine. Their combination of impressive efficiency and reasonable pricing makes them a top choice. So, if you’re looking for the perfect partner for your solar system, Fronius is a name to remember.

BrandModelBest Description
FroniusPrimo 5.0-1High-quality, reliable inverter with a long warranty.
SMASunny Boy 5.0-1Popular and affordable inverter with a good reputation.
SolarEdgeSE5000H-USAdvanced inverter with smart features that can help you save money.
GoodweGW5000-DGood value for money inverter with a wide range of features.
Victron EnergyMultiPlus 5000VAVersatile inverter that can be used for a variety of applications.

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

A 6kW system is composed of approximately 15 solar panels. Each panel typically has a wattage capacity of 405 watts. However, it’s important to note that the exact number of panels may differ if smaller-sized panels are utilized.

The specific number of panels required for a 6kW solar panel system can be adjusted to accommodate different roof sizes and orientations. By increasing or decreasing the number of panels, the system can be optimized to maximize energy production and meet the unique requirements of the installation location. 


No. of Panels







What Appliances Can a 6Kw Solar System Run?

A 6kW solar system can run a variety of appliances in a medium to large home. The specific appliances that can be run depends on the amount of sunlight in your area, the efficiency of your solar panels and the efficiency of the appliances themselves.


Washing machine






Electric heater

Electric oven

 Air conditioning unit

How Much Roof Space Do You Need for a 6kW Solar System?

A typical 6kW solar PV system will need approximately 265 square feet of space or 38m2 of free space on your rooftop. It’s important to note that the actual space required will depend on the dimensions and size of the panels. If you have limited space, you can opt for higher efficiency solar panels.

How to Find the Right Installer for a 6kW Solar System in UK?

If you are interested in installing a 6kW solar system with battery in UK, it is crucial to choose the installer wisely. Look for an MCS-Certified company that has extensive experience and a proven track record of successful system installations.

MAK Energy stands out as the best solar system installer in the UK. We have a wealth of knowledge and expertise in installing 6kW solar panels. We are committed to assisting you in selecting the right products for your specific needs. Our services include providing a free quote, conducting a free online survey, and maintaining a professional approach throughout the entire installation process, from start to finish.

By choosing MAK Energy to install your solar system in UK, you can expect exceptional service and expertise. We aim to ensure your satisfaction and happiness throughout the entire experience. Contact us today, and you’ll discover that our services will exceed your expectations.


A 6kW solar panel system is commonly installed in large homes accommodating 5-6 occupants, providing an annual electricity consumption ranging from 4800 to 6000 watts. When considering the price of a 6kW solar system with battery in the UK, it can vary based on the specific components chosen. On average, the price of a 6kW solar system with battery price in UK is approximately £12,000. However, the 6kW solar system price without battery storage ranges between £7000 to £8000. It is crucial to carefully evaluate your energy needs and budget while deciding whether to include battery storage in your 6kW solar PV system. This ensures that you make an informed choice that aligns with your requirements and financial considerations.

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