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How Solar Improves the EPC Rating

installing solar panels on roof

Did you know that improving your property’s energy efficiency not only helps you save money on energy bills, but also contributes to a more sustainable future?

One of the best ways to achieve this is by focusing on your property’s Energy Performance Certificate (EPC) rating.

In this blog post, we’ll take a deep dive into the world of EPC ratings, explore how solar improves the EPC rating of your property with the help of solar panels, and discuss complementary energy efficiency measures that can further enhance your rating.


Short Summary

  • EPC ratings measure a property’s energy efficiency and can help save money on bills.

  • Solar panels are an eco-friendly way to improve EPC ratings, reduce carbon emissions, and lower energy costs.

  • Stay informed of changing renewable energy policies for incentives & grants that make solar panel installation more cost effective.

Understanding EPC Ratings

A house with solar panels on the roof, showing energy efficiency

EPC ratings are designed to help property owners, buyers, and renters make informed decisions about the energy efficiency of buildings.

They provide insights into a property’s energy consumption, costs, and its overall carbon footprint.

By improving your EPC rating, you can reduce your energy bills and make a positive impact on the environment by using renewable energy sources like solar panels.

Additionally, higher EPC ratings can make your property more attractive to potential buyers and renters, offering a win-win situation for everyone involved.

What is an EPC rating?

An EPC rating gives information on a property’s typical energy usage and costs while offering advice on how to make it more eco-friendly and cost-effective.

EPC ratings range from A (most efficient) to G (least efficient) and are sometimes referred to as ‘Energy Performance Certificates’ or EPCs.

A higher EPC rating means lower carbon dioxide emissions, which result from reduced energy consumption for heating or electricity. In essence, an EPC rating helps you understand your property’s current energy efficiency and potential improvements.


Factors affecting EPC ratings

Various factors can impact an EPC rating, such as the type of construction and the year it was built. The heating system, insulation, and energy efficiency rating also play vital roles in determining a property’s EPC rating.

By understanding these factors, homeowners can take specific measures to improve their property’s energy efficiency and consequently, its EPC rating.


Importance of improving EPC ratings

Improving your property’s EPC rating is crucial for several reasons.

First, it’s essential in reducing our carbon footprint, making the environment more sustainable for future generations.

Second, higher EPC ratings mean your home will be more comfortable and inviting, as it will be easier to heat.

Third, starting in 2025, rental properties must have an EPC rating of at least “C” to be rented out.

By installing solar panels or other energy-efficient solutions, you can boost your property’s EPC rating, making it more attractive to potential buyers or renters.

Solar Panels: A Green Solution to Boost EPC Ratings

An image showing a rooftop with solar panels, highlighting how solar improves the EPC rating of a building

Solar panels have become increasingly popular as a green solution to enhance EPC ratings.

They harness the power of the sun to generate electricity, reducing energy consumption and carbon emissions.

By improving a property’s EPC rating, solar panels can significantly contribute to a more sustainable future and help property owners save on energy costs.

Let’s look into how solar panels work to improve EPC ratings, their cost-effectiveness, and additional benefits of solar installations.


How solar panels improve EPC ratings

Solar panels can significantly impact EPC ratings by supplying renewable energy, reducing the carbon footprint of a property and raising the energy rating of homes.

By converting sunlight into energy, solar panels can help you save on energy bills and contribute to a more sustainable environment.

As a result, installing solar panels can boost a property’s EPC rating by up to two rating bands, making them an excellent investment for homeowners looking to improve their property’s energy efficiency.


Cost-effectiveness of solar panels

The cost-effectiveness of solar panels depends on various factors such as location, energy usage, and government incentives, as well as the price of polysilicon, custom duties, metal prices, energy prices, roof angle, roof type, age of the roof, temperature, energy conversion efficiency, solar shadings, the orientation, inclination, latitude, number of solar panels purchased, type of solar panels, ease of installation, weather change, shading, cleanliness of solar panel surface, location, and equipment quality.

With recent advancements in solar technology and decreasing prices, solar panels have become more affordable, making them an attractive option for property owners looking to improve their EPC rating and save on energy costs.


Additional benefits of solar installations

Aside from improving EPC ratings, solar panels offer numerous other benefits to property owners. Solar installations can lower energy bills and reduce carbon emissions, ultimately contributing to a more sustainable environment.

Additionally, properties with solar panels tend to have a higher value, making them more appealing to potential buyers.

Furthermore, innovative solar technologies like the iBoost, a solar hot water heater, can further increase the efficiency of your solar system by using the energy generated to heat water for your home.

Steps to Enhance Your Property’s EPC Rating with Solar Panels

person inspecting solar panels on roofNow that we’ve established the benefits of solar panels in boosting EPC ratings, let’s explore the necessary steps to enhance your property’s EPC rating with solar panels.

It starts with assessing your property’s current EPC rating, followed by choosing the right solar panel system and going through the installation process.

We’ll also discuss post-installation considerations to ensure you get the most out of your solar panel investment.


Assessing your property’s current EPC rating

To determine your property’s current EPC rating, you’ll need to hire an accredited energy assessor to visit the property and carry out a non-intrusive visual inspection.

The assessor will take measurements and photos to determine the energy efficiency rating of your property.

This assessment will provide you with valuable information on your property’s energy performance and highlight areas where improvements can be made to boost its EPC rating.


Choosing the right solar panel system

Selecting the perfect solar panel system involves considering factors such as the size of the system, the type of solar panel, the efficiency of the system, the cost of installation, and the expected return on investment. It’s crucial to assess your energy needs and the available space on your property to determine the most suitable solar panel system for your specific situation.

Additionally, researching local installers, reading customer reviews, and asking for references can help you find a reputable installer to ensure a smooth installation process.


Installation process and post-installation considerations

Installing solar panels typically involves setting up scaffolding, attaching roof anchors, fitting mounts, putting the panels in place, wiring up the electrical components, and connecting the panels to the inverter and battery.

The process usually takes around two days to complete.

After installation, it’s essential to monitor the system’s performance, ensure proper maintenance, and take advantage of any incentives that might be available.

Complementary Energy Efficiency Measures

a house with insulation upgradesIn addition to solar panels, there are other energy efficiency measures that can help improve your property’s EPC rating.

These include insulation upgrades, window improvements, and heating system enhancements.

By combining these measures with solar panel installations, you can further increase your property’s energy efficiency and EPC rating.


Insulation upgrades (loft, wall)

Upgrading insulation is crucial for improving the EPC rating of a property, as it helps to reduce the amount of heat that escapes through walls and the roof.


About a quarter of heat is lost through the roof, while a third is lost through uninsulated walls.

To tackle this issue, installing loft insulation with a minimum depth of 270mm in the loft and insulating walls of the property is recommended. Enhanced insulation can significantly contribute to a higher EPC rating and a more energy-efficient home.


Window improvements (double/triple glazing)

Double or triple-glazed windows can help reduce heat loss and improve energy efficiency, contributing to a higher EPC rating.

Heat loss in a property can be significant, especially if older windows are present. 40% of this energy loss is typically attributed to these windows.

By replacing them with high-performance glazing, you can significantly decrease heat loss and enhance your property’tos EPC rating.


Heating system enhancements (new boiler, heat pumps)

Upgrading your heating system can further enhance your property’s EPC rating. By installing a new, energy-efficient boiler, you can save up to £310 a year on energy bills. Additionally, replacing halogen spotlights with LED bulbs can save up to £112 a year.

These enhancements, combined with solar panel installations and other energy efficiency measures, can lead to significant improvements in your property’s EPC rating and overall energy performance.

Solar Solutions for Multi-Dwelling Buildings

The SolShare is an innovative solution specifically designed for multi-dwelling buildings, making rooftop solar for flats more accessible and cost-effective. This private infrastructure enables solar energy sharing within the building, providing a fair distribution of solar energy among the residents.

Let’s explore how The SolShare works, its benefits for flats, and the cost implications and funding opportunities associated with this technology.


Introduction to The SolShare

The SolShare is a hardware technology that links multiple apartments to a single rooftop solar system, allowing residents to share rooftop energy more fairly. The system is installed on the rooftop of a multi-dwelling building and connected to the solar panels, tracking the energy production.

The energy generated is then divided among the building’s residents based on their individual energy needs. As a result, The SolShare offers a more equitable energy distribution, improved energy efficiency, and cost savings for everyone involved.

 Benefits of solar power for flats

Solar power for flats provides numerous advantages, including reduced energy bills and carbon emissions. By implementing solar solutions like The SolShare, flats can experience a significant improvement in their EPC ratings.

Moreover, The SolShare is a simple and cost-efficient option for rooftop solar for flats, as tenants or flat owners don’t need to register for extra billing services or solar trading platforms.

This innovative technology makes solar power more accessible and practical for multi-dwelling buildings.


Cost implications and funding opportunities

While the cost of installing The SolShare system may vary based on the size of the building and the number of people living there, the increased energy efficiency and fairer energy distribution can help offset the initial installation costs.

In addition to The SolShare system, there are funding opportunities available for solar panels, such as the government’s Energy Company Obligation (ECO4) scheme for low-income households.

By considering these funding options, property owners can make solar installations more affordable and feasible for multi-dwelling buildings.

inspection of house with solar pvWith the ever-changing landscape of energy policies, it’s essential to stay informed and adapt to new regulations and incentives, particularly those related to EPC ratings and solar panel installations.


EPC requirements for solar panel incentives

To qualify for solar panel incentives, your property must have an Energy Performance Certificate (EPC) rating of D, E, F, or G. By meeting these EPC requirements, property owners can take advantage of government grants like the Energy Company Obligation (ECO4) scheme, which is currently the only active government grant for solar panels.

These incentives make solar panel installations more attractive and help property owners improve their property’s energy efficiency and EPC rating.


Future outlook for renewable energy policies

As the global focus on renewable energy sources increases, experts predict that renewable energy policies will become more important in the future.

Renewable energy is expected to become the largest source of electricity generation worldwide by 2025, and the International Renewable Energy Agency (IRENA) estimates that 90 percent of the world’s electricity should come from renewable energy by 2050.

With this outlook, solar panels and other renewable energy solutions will continue to play a crucial role in improving EPC ratings and promoting a more sustainable future.



In conclusion, improving your property’s EPC rating by installing solar panels and implementing complementary energy efficiency measures can result in significant benefits for property owners, buyers, and renters alike.

By harnessing the power of the sun and taking advantage of renewable energy policies, you can reduce energy consumption, lower energy bills, and contribute to a more sustainable environment.

Whether you own a single-family home or a multi-dwelling building, solar panels and other energy-efficient solutions can help you achieve a higher EPC rating and a greener future for all.

Stop guessing EPC rating

Frequently Asked Questions

Do solar panels improve your EPC rating?

Yes, solar panels do improve your EPC rating. Installing solar panels will add points to your EPC rating, meaning that even if you start at a low level E, you could end up with a low level D after installation.


How many EPC points for solar PV?

Solar PV is a great way to increase your property’s EPC rating. With a 4kW system, you can earn up to 15 points, which could raise your rating from a low level E to a low level D.

By switching to solar energy, you are not only doing good for the environment, but also increasing the value of your property.


How can EPC rating be improved?

Improving your property’s EPC rating can be easy with a few simple upgrades.

By upgrading the lighting, insulating the walls and roof, investing in double or triple-glazed windows, upgrading the boiler, installing underfloor heating, installing a smart meter, investing in renewable energy and seeking help from your energy supplier, you can easily make your property more energy efficient.


What is EPC for solar power?

EPC for solar power is an acronym that stands for engineering, procurement, and construction not to be confused with EPC for energy performance certificate.

EPC companies provide services such as consultative sales, system design, equipment procurement, project management, installation, and reliable maintenance or warranty claims if required.

Therefore, EPC is a great option for those looking to install solar energy systems in their home or business.




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