Usable roof space
Dimensions, pitch, hips, valleys, dormers, rooflights and chimneys define where panels can be positioned safely.
Solar panels Cardiff and South Wales
Solar panels in Cardiff and South Wales, designed for the roof, weather and household.
REST designs solar, battery and EV-ready systems across Cardiff and South Wales with exposure, roof materials, local shading and electricity demand assessed together.
- MCS-certified installation
- HIES and EPVS consumer protection
- Solar, battery and EV-ready design
Clear customer protectionAccreditations, warranties and proposal assumptions explained before you commit.
Designed for the propertyNo one-size-fits-all package based on a postcode alone.
Ready for future demandBattery storage, EV charging and changing electricity use considered from day one.
Support after installationMonitoring, paperwork, warranty coordination and optional aftercare.
A Cardiff-specific solar design
The best system fits the roof, the household and the surroundings.
South Wales includes dense Cardiff suburbs, valleys communities, coastal homes and rural properties. Wind exposure, surrounding hills, slate roofs and access routes can affect installation planning.
A South Wales design should reflect the exact site rather than rely on a regional generation assumption. REST combines those local considerations with electricity use, tariff, battery interest and future plans before the equipment is specified.
Reviewed by the REST UK solar design team. Final generation, savings, equipment and installation scope depend on the completed survey, electricity usage, tariff, roof condition and approved design.
What REST checks first
Five factors that shape a Cardiff solar installation.
A useful proposal needs more than a postcode and an estimated panel count.
Shade through the day
Nearby buildings, trees and roof obstructions can affect different parts of the array at different times.
Access and installation
Scaffolding, parking, extensions, boundaries and equipment routes influence the practical installation plan.
Electricity demand
Daytime use, evening demand, hybrid working, EV charging and electric heating affect the recommended system.
Ownership and permissions
Freeholder consent, listed status and conservation restrictions should be understood before work begins.
Solar for different Cardiff homes
Different properties need different questions answered.
The same package should not be copied from one roof to another.
Terraced and semi-detached homes
Chimneys, dormers, rooflights, extensions and the available roof width all affect the usable array.
Detached and suburban properties
Larger or split roofs can create options for east-west arrays, battery storage and future EV charging.
Flats and shared ownership
Roof ownership, freeholder consent, metering and who will use the generated electricity need to be understood.
Heritage-sensitive properties
Listed status, conservation guidance, roof materials and visibility may require additional checks before design.
Solar and battery storage in Cardiff and South Wales
Generate during daylight. Keep more available for later.
A compatible home battery can retain spare solar generation for the evening and may support time-of-use tariffs. The useful capacity depends on realistic generation, household demand, tariff and future plans.
- Battery capacity matched to the home rather than sold as a default.
- Space, ventilation, cable route and equipment compatibility reviewed.
- EV charging and future electrical demand considered during design.
DaylightSolar array generates
First priorityHome uses generation
Spare energyBattery stores for later
From postcode to installation
A clear route to a property-specific proposal.
- 01
Start with the address
Tell REST where the property is and what you want the energy system to achieve.
- 02
Review roof and usage
Roof space, shade, access, electricity demand and future plans are assessed.
- 03
Build the design
The proposal sets out the array, inverter, optional battery, assumptions and protection.
- 04
Install and commission
The system is fitted, tested, commissioned and handed over with its documentation.
- 05
Monitor and support
REST can support monitoring, warranties, health checks and optional aftercare.
Cardiff and South Wales coverage
Solar panel assessments across Cardiff and South Wales.
REST reviews residential projects throughout the area, subject to survey requirements, access and installation availability.
Check your propertyCardiff
Roath, Canton, Llandaff, Whitchurch, Llanishen, Penarth and surrounding communities.
Vale of Glamorgan
Barry, Cowbridge, Dinas Powys, Llantwit Major and nearby villages.
Newport and east
Newport, Caerphilly, Cwmbran, Pontypool and neighbouring areas.
Central and west South Wales
Bridgend, Pontypridd, Merthyr Tydfil, Neath, Port Talbot and Swansea.
Planning and property checks
Understand the roof before committing to the installation.Planning and property checks in Cardiff and South Wales
Many installations are straightforward, but property-specific restrictions still matter.
Listed buildings, conservation areas, slate roofs, exposed coastal sites and rural access may require extra review. Welsh planning guidance should be checked for the property.
REST can identify the questions that need answering, but the local planning authority remains the correct source for a formal planning decision.
Read the official Planning Portal guidanceSolar panels Cardiff and South Wales: questions answered
Practical answers before you request a quote.
Common questions about roof suitability, planning, batteries and how REST prepares a property-specific proposal.
Often, but the roof condition and suitable fixing method must be confirmed.
It can. Wind and salt exposure should be considered when selecting equipment and fixings.
Yes, projects can be assessed across South Wales subject to survey and installation availability.
Yes. Panels generate electricity from daylight, not only direct sunshine. Output depends on the roof, orientation, shading and final system design.
No. East-facing, west-facing and split-roof arrays can also be suitable when the design reflects the household’s demand pattern.
Yes. A compatible battery can retain spare daytime generation for later use, but the capacity should be matched to realistic generation and demand.
Many domestic installations may fall within permitted development rules, but listed buildings, conservation areas and unusual roof positions can require additional checks.
REST starts with the property, roof and electricity usage, then reviews shading, access, system options and the customer’s priorities before confirming the proposal.
Request a Cardiff solar assessment
Tell REST about the property and what you want solar to achieve.
Share the basic details below. REST can review the location, electricity use and likely system options before discussing the next step.
Solar panels in CardiffStart with your postcodeGet a quote