Frequently Asked Questions About Renewable Energy in the UK
Frequently Asked Questions
Explore Sustainergy’s FAQs to get clear answers about Solar PV, Wind Power, Off-Grid systems, and Battery Storage solutions for homes, farms, and businesses.
Just Find Your Answers Below For Wind
How Does a Wind Turbine Work?
Wind turbines convert wind energy into electricity in a few simple steps. First, the wind pushes against the blades, causing them to rotate around the rotor. Next, the rotor spins a main shaft connected to a generator, which produces clean electrical power ready for use or storage.
How Much Space Is Required for a Wind Turbine?
To ensure optimal performance and reduce turbulence, a wind turbine should be sited away from buildings, trees, or other obstacles. Additionally, during installation and maintenance, the tower needs space to be laid flat on the ground. As a general guideline, a clear area equal to the height of the turbine is sufficient.
What Is the Lifespan of a Wind Turbine?
A well-maintained wind turbine typically has a lifespan of around 20 years or more. Regular servicing and maintenance can help extend its performance and efficiency over time.
Are Wind Turbines Noisy?
Modern wind turbines are designed to operate quietly and efficiently. When properly sited, they should not cause any noise disturbance to nearby residents. As a guideline, it’s recommended that the closest homes be at least 135 meters from the turbine base to minimise any potential noise impact.
Will the Turbine Impact Wildlife?
Wind turbines are designed to coexist safely with the surrounding environment. Livestock can graze freely in the same field without disturbance. Potential impacts on birds and bats can be minimised through careful siting. Current guidance from Natural England recommends a setback of at least 50 meters from trees, hedgerows, buildings, or water bodies to protect local wildlife.
Is My Site Windy Enough for a Wind Turbine?
We only recommend wind turbines for sites where they will be effective. To determine suitability, you can request a free desktop assessment from one of our in-house specialists. These site assessments are complimentary and come with no obligation to proceed with a purchase.
Just Find Your Answers Below For Solar:
Why Should I Install a PV System?
Installing a solar PV system allows you to generate your own green electricity, reducing energy bills while helping to offset carbon emissions. Solar PV plays a key role in supporting sustainable development and a cleaner future.
Key Advantages of Solar PV Systems:
Emission-free: Produces electricity without harmful carbon emissions.
Noise-free: Operates silently with no disturbance.
Minimal maintenance: No moving parts, so upkeep is easy.
Flexible installation: Can be integrated into or mounted onto existing buildings.
Low visual impact: Designed to blend with your property and surroundings.
Will I Need Planning Permission?
In most cases, roof-mounted solar PV systems less than 200mm above the roof and ground-mounted systems under 9m² do not require planning permission, unless the property is listed. For listed buildings or sites in protected areas, you must apply for consent from your local planning authority.
It’s always advisable to check with your local council before installation, as obtaining retrospective permission can be difficult.
What Is Solar PV?
A solar PV system (photovoltaic system) converts sunlight into electricity using a solid-state process. It has no moving parts, operates silently, and produces no emissions, making it a clean and efficient energy solution for homes and businesses.
Are There Different Types of Solar PV?
Yes, there are two main types of solar PV cells:
Crystalline Silicon PV – The most efficient and widely used technology, available as:
Mono-crystalline: Made from a single crystal, highly efficient.
Poly-crystalline: Made from multiple crystals, slightly less efficient but cost-effective.
Thin-Film PV – Flexible and lightweight, but generally less efficient than crystalline options.
These solar technologies are incorporated into various products:
PV Panels/Modules: The most common solution, formed of interconnected PV cells laminated between glass and a back-sheet in a rigid frame. Modules can be combined to meet your building’s electricity needs.
PV Tiles (BIPV): Building-Integrated PV tiles replace standard roof tiles, blending seamlessly with the structure. They are ideal when aesthetics are important or when replacing roof materials.
PV Glazing/Cladding: PV glass or cladding can replace conventional building materials, such as conservatory roofs or facades, providing electricity, shelter, and shading simultaneously. Custom options are available for new builds or retrofits.
Solar PV is an excellent choice if you are considering replacing part of a roof or building façade, and in some cases, solar materials may be more cost-effective than traditional building materials. For new constructions, integrating PV into the building fabric can provide both electricity and structural functionality.
My Roof Doesn’t Face South; Is That a Problem?
While a south-facing roof typically captures the most sunlight, solar PV systems can still perform effectively on roofs oriented from east to west. However, the annual energy output may be slightly reduced if your roof faces significantly away from the south.
How Much Space Does a PV System Need?
The space required depends on the system size and mounting method. As a guideline, a 1 kWp solar PV system typically needs around 8 m² of roof space. If your roof cannot accommodate the system, a ground-mounted PV system can be installed where space permits.
