Skip to content

1 local comparisons · Cardiff

Compare Solar Panels & Installation in Cardiff, Caerdydd

Across Cardiff, Caerdydd, solar installations vary depending on housing estates with consistent roof designs. Observed systems demonstrate that site-specific roof characteristics and exposure levels are critical to achieving consistent generation.

Cardiff, Caerdydd continues to see growing interest in solar panel installations, with system performance shaped by roof layout, orientation, and surrounding structures.

Savings in Cardiff, Caerdydd depend on how well system size matches energy usage. Homes with higher daytime consumption typically see stronger returns, while others benefit from battery storage.

Based on real comparison data, households typically see savings ranging from £1248 to £1248, with most systems delivering around £1248 annually.

Across Cardiff, Caerdydd, different housing layouts create variation in how solar systems are designed. Detached properties often allow for larger systems, while more compact homes require careful planning.

Roof angle, usable space, and nearby obstructions all influence final system design.

Energy generation in Cardiff, Caerdydd depends on roof orientation, shading, and system size. South-facing roofs generally achieve the highest output, while east-west systems provide more balanced generation.

Typical systems generate around 5673 per year, with higher-performing setups reaching 5673. Most installations include approximately 18 panels.

Typical yearly generation

5673 kWh

What a usual system here is modelled to produce

Typical yearly saving

£1248

From £1248 to £1248

Usual system

18 panels

Mostly 400W

Best result in the data

5673 kWh

Highest modelled yearly output

Check a roof in Cardiff

Enter a postcode. RoboMo™ uses it to see how many panels of each type fit that roof.

STEP 1

Choose Home, Business or Industrial

Enter your postcode to start your assessment.

It's fast, free and effortless.

STEP 2

Drop a pin on your roof

STEP 3

Create your free account

STEP 4

Sit back and watch RoboMo™ work

RoboMo™ analyses your roof and builds your personalised solar comparison.

Why Cardiff scores 92

Properties here are typically modelled at 5673 kWh a year, from systems of about 18 panels. The score mixes that output with how many people are comparing solar in the area.

Most installations in Cardiff, Caerdydd fall under permitted development, but conservation areas and listed buildings may require additional approvals.

Positioning and visual impact can influence planning decisions in certain cases.

Installations across Cardiff, Caerdydd often reflect a balance between roof constraints and energy usage. Systems are typically designed to maximise output within available space.

Battery storage is becoming more common, particularly where excess generation can be shifted into evening use.

What we're seeing locally: Cardiff, Caerdydd includes a mix of housing layouts that can influence solar performance, particularly where surrounding buildings or trees introduce partial shading.

Cardiff at a glance

Local score

92

out of 100

Yearly output

5673

kWh, best 5673

Yearly saving

£1248

up to £1248

South-facing roofs

100%

of modelled systems

Average system

18

panels, scale to 40

Common panel class

400W

scale to 600W

Best modelled year

5673

kWh peak in the data

Roof direction

South 100%

100%

East/west 0%

0%

Mixed 0%

0%

Flat 0%

0%

What people in Cardiff ask for

Residential solar in Cardiff

Figures come from real residential comparisons for local homes. They show the system sizes people compare and the generation those sizes reach.

Panel typeTypical setupAverage yearly generation
18 panel system
High-efficiency panel
18 panels5673 kWh

Installers covering Cardiff

Article image
Green Energy Solar

Unit T3, Capital Business Park, Parkway, St. Mellons, Cardiff CF3 2PZ, UK CF3 2PZ

Article image
GMI Electrical Ltd

Unit 1B Whitebeam Court Rhodfa, Ty Du Road, Nelson, Treharris CF46 6PQ, UK CF46 6PQ

Article image
alt Renewables

T&L Business Park, Winterstoke Rd, Weston-super-Mare BS23 3YS, UK BS23 3YS

How Cardiff sits next to nearby areas

Most homes here are modelled around 5673 kWh a year, with typical savings of £1248.

Nearby Home solar panel installation

Get solar quotes in Cardiff

Compare installers and prices for solar in Cardiff.

Get solar quotes in Cardiff

FAQ

Need Help? RoboMo's Got Answers

Do homes in Cardiff, Caerdydd need planning permission for solar panels?
Most residential properties fall under permitted development, but conservation areas or listed buildings may require approval depending on placement and visibility.
Are detached homes in Cardiff, Caerdydd better suited for solar installations?
Detached properties often provide more usable roof space and fewer shading constraints, making them well suited for larger systems.
Is battery storage commonly used in Cardiff, Caerdydd?
Yes, battery storage is increasingly used to store excess generation and improve self-consumption, especially in homes with lower daytime usage.
What affects solar performance in Cardiff, Caerdydd?
Roof orientation, shading, and available space all influence system performance, making tailored system design important.
Are solar panels worth it for a home in Cardiff?
For many homes in Cardiff, solar panels are a worthwhile investment. Local comparison data shows typical systems generate around 5673 kWh per year and deliver average savings of about £1248, depending on system size and energy use.
How much can I save with solar panels in Cardiff?
Savings in Cardiff typically range between £1248 and £1248 per year. Many households achieve around £1248, although this depends on roof suitability and electricity usage patterns.
How many solar panels does my home need in Cardiff?
Most systems in Cardiff use around 18 panels. The exact number depends on your roof size, orientation, and how much electricity your household uses.
Do solar panels work well in Cardiff?
Yes, solar panels work effectively in Cardiff. Typical systems generate around 5673 kWh per year, with consistent output across the seasons when installed on suitable roofs.
What is the best solar setup for a home in Cardiff?
The most common setup in Cardiff is around 18 panels using 400W panels. The best system for your property will depend on roof direction, available space, and whether you include battery storage.
How long does it take for solar panels to pay for themselves in Cardiff?
With typical savings of around £1248 per year, many systems in Cardiff recover their cost over time. Payback periods vary depending on installation cost, energy usage, and electricity prices.
Does roof direction matter for solar panels in Cardiff?
Yes, roof direction plays an important role. In Cardiff, around 100% of systems are south-facing, which typically delivers the highest output. East-west systems are also common and help spread generation throughout the day.
What should I do next if I want solar panels in Cardiff?
The next step is to run a solar comparison for your property. This provides a tailored estimate based on your roof and shows what system size, generation, and savings you can expect in Cardiff.

Need help right now?

Talk to RoboMo™ and get instant answers.