Is Your Home Suitable for Solar Panels?

 

Many UK homes can accommodate solar panels, but the potential output and practicality of an installation will depend on the individual property.

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Factors that can influence suitability include:

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• roof orientation;

• roof pitch;

• available roof area;

• shading from trees or neighbouring buildings;

• chimneys and roof obstructions;

• roof condition;

• the type of roof covering;

• alternative roofs or outbuildings;

• household electricity use; and

• planning or property restrictions.

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A large south-facing roof can provide an obvious opportunity, but east- and west-facing installations can also perform well and may sometimes produce electricity at times that better match household demand.

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The objective should be to design a system around the property and the way you use electricity, rather than simply fitting as many panels as possible.

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How Solar Panels Work

 

Solar photovoltaic panels convert daylight into electricity.

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The electricity generated by the panels is converted into usable household electricity through an inverter and can then be used by appliances within the home.

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When the panels are producing more electricity than the property is using, the surplus can potentially be exported to the grid or stored in a home battery for use later.

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When solar production is insufficient, electricity continues to be drawn from the grid in the normal way.

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The result is a home that can generate part of its own electricity while remaining connected to the wider electricity network.

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How Much Electricity Can Solar Panels Generate?

 

The amount of electricity produced will depend on several factors, including:

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• number of panels;

• panel output;

• orientation;

• roof angle;

• shading;

• geographical location;

• inverter performance; and

• system design.

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Solar generation will naturally be higher during brighter and longer summer days and lower during winter.

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This means solar should be assessed over the year rather than judging performance from one particular day or season.

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Solar Panels and Battery Storage

 

Solar panels and battery storage can work particularly well together.

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Without a battery, surplus solar electricity that is not immediately used in the home may be exported to the grid.

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A battery allows some of that surplus energy to be stored and used later, for example during the evening when the panels are producing little or no electricity.

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Whether battery storage is worthwhile will depend on the size of the solar system, household consumption, energy tariffs and the pattern of electricity use.

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For some properties, solar alone may provide the best initial investment. For others, planning solar and battery storage together may produce a more useful overall system.

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Solar Panels and EV Charging

 

An electric vehicle can significantly increase household electricity demand.

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This can make solar generation particularly attractive for homeowners who already own an EV or expect to move to electric vehicles in the future.

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Where charging takes place during daylight hours, some of the electricity generated by the solar panels may be used directly by the vehicle.

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Battery storage and smart charging can create further opportunities to coordinate when electricity is generated, stored and consumed.

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If you are planning solar and expect to install an EV charger later, it makes sense to consider both requirements from the beginning.

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Solar Panels and Heat Pumps

 

Heat pumps use electricity rather than gas or oil, so installing one can substantially change the energy profile of a home.

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Solar PV may help provide some of that additional electricity, particularly during daylight hours.

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However, solar generation is generally lower during winter when heating demand is highest, so solar panels should not be viewed as a complete solution to heat-pump electricity consumption.

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The two technologies can still complement each other as part of a wider home energy strategy.

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Solar Panels on Different Roof Types

 

Solar panels can be installed on many different forms of roof, including:

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• tiled roofs;

• slate roofs;

• flat roofs;

• metal roofs;

• extensions;

• garages; and

• suitable outbuildings.

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The mounting method will vary according to the roof construction and covering.

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Roof condition should also be considered before installation. If major roof repairs or replacement are likely to be required in the near future, it may be sensible to carry out those works before installing the solar system.

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Flat Roof Solar Panels

 

Flat roofs can provide useful flexibility because panels can be mounted at an appropriate angle and orientation rather than following an existing roof slope.

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The design needs to consider wind loading, ballast or fixing methods, spacing between panels and the effect of one row shading another.

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A good layout should also retain suitable access for maintenance and drainage.

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Ground-Mounted Solar Panels

 

Where roof space is unsuitable or insufficient, ground-mounted solar may provide another option.

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This can be particularly relevant for properties with larger gardens, rural homes, farms and smallholdings.

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Ground-mounted installations require careful consideration of location, orientation, shading, visual impact, cabling and planning requirements.

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Solar Panels on Listed Buildings and in Conservation Areas

 

Solar installations on listed buildings and properties within conservation areas often require more careful consideration.

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The visual effect of panels, their position on the building, roof form, historic fabric and visibility from public viewpoints may all become important.

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In sensitive locations, alternative roof slopes, outbuildings, ground-mounted systems or less prominent arrangements may deserve consideration.

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Where planning or listed-building consent may be required, this should be investigated before equipment is ordered.

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Do Solar Panels Need Planning Permission?

 

Many domestic solar installations can be carried out without a full planning application, subject to the relevant conditions and limitations.

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However, the position can become more complicated for listed buildings, conservation areas, flats, unusual installations, prominent locations and ground-mounted systems.

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If there is uncertainty, it is sensible to establish the planning position early.

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Where drawings or a planning application are required, these can be incorporated into the wider project before installation proceeds.

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Solar Panels and Building Regulations

 

Solar installations can involve structural, electrical and building-fabric considerations.

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The roof must be capable of carrying the additional loads, fixings must be appropriate for the roof construction and electrical work needs to be properly designed and installed.

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Where there are concerns about an older roof, unusual structure or substantial additional loading, further structural assessment may be appropriate.

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How Many Solar Panels Do You Need?

 

The best number of panels will depend on the property and your objectives.

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Installing the maximum number physically possible is not automatically the best answer.

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System sizing should take account of:

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• annual electricity consumption;

• available roof space;

• daytime electricity use;

• future EV charging;

• possible heat-pump installation;

• battery storage;

• budget; and

• expected future energy demand.

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A home that expects to move increasingly towards electricity for transport and heating may reasonably plan for greater future consumption than it has today.

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Solar Panel Costs

 

The cost of a domestic solar installation will depend on the size of the system and the characteristics of the property.

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Factors affecting price can include:

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• number and specification of panels;

• inverter type;

• mounting system;

• roof access;

• scaffolding;

• roof covering;

• electrical work;

• battery storage;

• monitoring equipment; and

• any roof or building alterations required.

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The lowest quotation is not necessarily the best-value installation. System design, equipment quality, workmanship, warranties and aftercare all deserve consideration.

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How Much Could Solar Panels Save?

 

Savings depend on how much electricity the panels generate and, importantly, how much of that electricity you can use yourself.

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A household that is occupied during the day may use a higher proportion of its solar generation directly.

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Battery storage, EV charging, smart appliances and other controllable loads can potentially increase the amount of self-generated electricity used within the home.

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The economics should therefore be considered around the household's actual energy pattern rather than relying solely on headline generation figures.

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Solar Panels as Part of a Green Home Plan

 

Solar PV can be an excellent improvement, but its value can increase when it forms part of a wider strategy.

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For example:

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Solar panels generate electricity.

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Battery storage helps retain surplus electricity.

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An EV charger creates another use for that electricity.

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A heat pump increases household electrical demand.

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Smart controls help determine when energy is used.

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Thinking about these systems together can help create a home that generates, stores and uses more of its own energy.

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Planning Building Work?

 

If you are planning an extension, loft conversion, roof replacement or major renovation, it may be an ideal time to consider solar.

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The roof design, electrical installation and future equipment requirements can potentially be considered before construction work is completed.

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Planning ahead can avoid the need to alter newly completed work later and can allow solar to become part of the overall building design.

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Independent Solar Advice

 

Solar installers are understandably focused on designing and installing solar systems.

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Our wider role is to help you consider whether solar represents the right priority for your property and how it could work alongside other home improvements.

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A Green Home Survey can look at solar together with insulation, heating, battery storage, EV charging, glazing, ventilation and future energy demand.

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The objective is to help you understand the whole opportunity before committing to one particular technology.

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Start With Your Home

 

Solar panels can provide decades of renewable electricity, but the best results begin with a properly considered system.

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Before choosing equipment or an installer, it is worth understanding the roof, the property, your current electricity consumption and how your energy needs may change in the future.

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NEXT STEPS

Every home is different, so the right next step depends on your property, your budget and what you want to achieve. APN Green Homes can help you turn the information you have just read into a practical plan for your own home. Whether you are considering one improvement or looking at a complete whole-home energy upgrade, we can help you understand what is suitable, what should be prioritised and where your money is likely to make the greatest difference.

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Choose one of the options below to get the ball rolling:

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BOOK A GREEN HOME SURVEY
Get a detailed assessment of your home with practical, property-specific recommendations and a clear plan for the improvements worth considering.

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BOOK A PHONE CONSULTATION
Talk through your property, ideas and priorities with us and get some initial direction on the best way forward.

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EMAIL US
Send us details of your property, photographs or any questions and we can advise you on the most appropriate next step.

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GIVE US A CALL
Prefer to speak to someone? Give us a call and tell us what you are hoping to achieve.

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Your greener, more efficient home starts with understanding the right improvements for your property — and putting them in the right order.