Ground Mounted Solar Panels: Costs, Planning & Installation
No suitable roof? Ground mounted solar panels let you install a system in your garden or on your land at the optimal angle and orientation — with no roof constraints.
Quick Answer
Ground mounted solar panels are installed on metal frames in your garden or on land rather than on a roof. They cost £8,000–£15,000 for a typical 4kW system in 2026, which is slightly more than roof-mounted due to groundwork and planning permission. The key advantage is you can set the perfect angle (30–40°) and face due south for maximum output — up to 20% more than a poorly oriented roof installation.
What are ground mounted solar panels?
Ground mounted solar panels are photovoltaic panels installed on metal frames anchored into the ground, rather than fixed to a roof. They sit in your garden, field, or any suitable open land and are connected to your property's electricity supply via underground cabling.
The main advantage is freedom of placement. You choose the exact tilt angle (typically 30–40° in the UK) and orientation (due south is ideal), which means a ground mounted system can generate up to 20% more electricity than a roof system on a sub-optimal roof.
Ground mount systems use the same solar panels and inverters as roof installations. The difference is purely in the mounting structure and the foundations beneath it. They are particularly popular on farms, large gardens, listed buildings where roof alterations are not permitted, and new-build projects.
Ground mount vs roof mount: which is better?
Neither is universally better — it depends on your property. Here's how they compare:
| Factor | Ground Mounted | Roof Mounted |
|---|---|---|
| Angle & orientation | Optimal — you choose the perfect tilt and direction | Limited by your roof angle and direction |
| Maintenance | Easy — accessible from ground level for cleaning and repairs | Requires scaffolding or roof access |
| Roof concerns | None — no structural load on your roof | Roof must be structurally sound and in good condition |
| Land requirement | Needs open garden or land (~25–30m² for 4kW) | No land needed |
| Planning permission | Always required for systems over 9m² | Usually permitted development (no application needed) |
| Cost (4kW system) | £8,000–£12,000 | £5,000–£8,000 |
| Installation time | 2–4 days (plus groundwork) | 1–2 days |
| Output potential | Higher — optimal positioning possible | Depends on roof suitability |
For most homes with a south-facing roof in good condition, roof mounting is the more cost-effective option. Ground mounting makes sense when your roof is unsuitable, you have a listed building, or you have ample garden or land space.
Types of ground mount systems
There are several ways to mount solar panels on the ground. The right choice depends on your budget, ground conditions, and whether you want a permanent or removable installation.
Fixed Tilt Frame
Most common choice
The standard ground mount system. Panels are fixed at the optimal angle (30–40°) on an A-frame or tilted rack structure. Simple, reliable, and the most cost-effective ground mount option. Typical cost: £8,000–£12,000 for a 4kW system.
Pros
- Lowest cost ground mount option
- Proven and reliable
- Set at optimal angle for UK latitude
Cons
- Permanent installation
- Requires concrete or ground screw foundations
Pole Mount
Small installations
Panels mounted on a single vertical pole. Good for smaller installations of 2–4 panels. Often used for off-grid setups, garden offices, or as a standalone power source for outbuildings.
Pros
- Small footprint
- Good for 1–4 panels
- Easy to install
Cons
- Limited capacity
- Higher cost per panel
Ground Screw Foundation
Minimal ground disturbance
Metal screws are driven directly into the ground — no concrete needed. Quick to install and easy to remove if you move house or change your mind. Increasingly popular for residential ground mount systems.
Pros
- No concrete or excavation
- Removable — minimal permanent impact
- Fast installation
Cons
- Not suitable for all soil types (rocky ground may not work)
- Slightly less rigid than concrete
Concrete Foundation
Permanent installations
Traditional concrete footings or pads. The most robust option, used for large installations and commercial sites. Permanent and very stable, but more disruptive to install.
Pros
- Maximum stability
- Suitable for any ground type
- Long lifespan
Cons
- Most disruptive to install
- Permanent — difficult to remove
- Higher groundwork costs
Solar Tracker
Maximum output (but rarely worth it in the UK)
Motorised mounts that follow the sun across the sky throughout the day. Single-axis trackers follow east to west; dual-axis also adjust for seasonal tilt. Can increase output by 20–30%, but cost 2–3x more than fixed systems. Rarely cost-effective for UK residential installations due to our relatively low solar irradiance and high cloud cover.
Pros
- 20–30% more output than fixed mount
- Best possible energy yield
Cons
- 2–3x the cost of a fixed system
- Moving parts require maintenance
- Rarely justifiable for UK homes
How much do ground mounted solar panels cost?
Ground mounted solar panels cost more than roof-mounted systems due to the additional mounting structure, groundwork, and planning permission fees. Here are typical costs for 2026:
| System Size | Number of Panels | Ground Mount Cost | Roof Mount Cost | Annual Output |
|---|---|---|---|---|
| 2kW | 5 | £4,500–£6,500 | £3,000–£4,500 | ~1,700 kWh |
| 3kW | 7 | £6,500–£9,000 | £4,000–£6,000 | ~2,550 kWh |
| 4kW | 9 | £8,000–£12,000 | £5,000–£8,000 | ~3,400 kWh |
| 6kW | 14 | £11,000–£15,000 | £7,000–£10,000 | ~5,100 kWh |
| 10kW+ | 23+ | £16,000–£25,000 | £10,000–£15,000 | ~8,500 kWh |
Prices include panels, inverter, mounting structure, groundwork, and installation. VAT on domestic solar panels is 0% until March 2027.
Why the price premium?
Ground mount systems cost 30–50% more than roof mounts due to the metal frame structure, concrete or ground screw foundations, underground cabling, and planning permission costs.
Planning permission fee
Budget £206 for the householder planning application in England. Fees vary slightly in Scotland (£300), Wales (£230), and Northern Ireland (£265).
Payback period
Despite the higher upfront cost, an optimally angled ground mount system can pay back in 8–12 years through electricity savings and Smart Export Guarantee payments.
Planning permission for ground mounted solar panels
Planning permission is almost always required
Unlike roof-mounted solar panels, ground mounted systems over 9m² do not fall under permitted development rights. You will need to submit a planning application to your local council.
Roof-mounted solar panels benefit from permitted development rights, meaning most homeowners can install them without planning permission. Ground mounted solar panels are treated differently. Under the Town and Country Planning (General Permitted Development) (England) Order 2015, standalone solar equipment is only permitted development if it does not exceed 9 square metres in area. A typical 4kW system needs around 25–30m², so virtually all useful ground mount installations require planning permission.
The planning process
- Submit a householder planning application to your local planning authority
- Include site plans, elevation drawings, and panel specifications
- Neighbours may be consulted as part of the process
- Decision typically takes 8 weeks (target)
- Appeal is possible if refused
What planners look at
- Visual impact on the surrounding area
- Proximity to boundaries and neighbours
- Whether the property is in a conservation area
- Impact on the landscape (AONB, Green Belt, etc.)
- Glare or reflection affecting neighbours
In most cases, planning permission for residential ground mount solar is granted without issue — especially if the panels are not visible from the road, are set back from boundaries, and the property is not in a sensitive area.
Tip: Some installers will handle the planning application for you as part of their service. Ask about this when getting quotes, as it can save time and ensure the application is submitted correctly.
Who should consider ground mounted solar?
Ground mounted solar is not for everyone. It makes the most sense in specific situations where roof mounting is impractical or sub-optimal:
Poor roof orientation
If your roof faces north or is heavily shaded by trees or neighbouring buildings, ground mounting lets you position panels optimally.
Listed buildings
Grade I and II listed buildings often cannot have roof-mounted panels. Ground mounting in the garden avoids altering the building's fabric (though you still need planning permission and possibly listed building consent).
Large gardens or land
If you have ample garden space, a ground mount system can be larger than what your roof could accommodate, generating more electricity.
Farms and smallholdings
Agricultural land is ideal for ground mount solar. Farms can also access the Farming Equipment and Technology Fund (FETF) for certain installations.
New builds
If you are building a new property, ground mount solar can be planned into the landscaping from the start, avoiding any roof integration challenges.
Structural roof concerns
Older properties with weak roof structures, asbestos tiles, or roofs needing replacement soon are better suited to ground mount installations.
Installation process
Installing a ground mounted solar system takes longer than a roof installation due to groundwork and planning. Here's what to expect:
Site survey
An installer visits your property to assess the ground conditions, available space, shading, soil type, and the best position for the panels. They will also check your electrical supply and meter.
Planning application
Your installer (or you) submits a householder planning application to your local council. This typically costs £206 in England and takes up to 8 weeks for a decision.
Groundwork
Once planning is approved, the foundation work begins. This may involve driving ground screws, pouring concrete footings, or preparing a level base. Underground ducting is installed for the electrical cabling.
Frame installation
The metal mounting frame is assembled and secured to the foundations. The frame is set at the optimal tilt angle (30–40°) and oriented due south.
Panel mounting
Solar panels are fixed to the frame and wired together in strings. The panels are the same models used for roof installations — typically 440W N-type panels.
Electrical connection
Underground cabling runs from the panels to your inverter (usually installed inside a garage or utility room). The inverter is connected to your consumer unit (fuse board) and a generation meter is fitted.
Commissioning and sign-off
The system is tested, MCS certification paperwork is completed, and you are registered for the Smart Export Guarantee. Your installer will walk you through the monitoring app.
Total timeline: 10–14 weeks from initial survey to switch-on (most of this is waiting for planning permission).
Frequently Asked Questions About Ground Mounted Solar Panels
Do I need planning permission for ground mounted solar panels?
Yes, in almost all cases. Ground mounted solar installations over 9 square metres require a householder planning application. A typical 4kW system needs 25–30m², so it will exceed the permitted development limit. The application costs around £206 in England and takes up to 8 weeks.
How much do ground mounted solar panels cost in the UK?
A typical 4kW ground mounted system costs £8,000–£12,000 in 2026, compared to £5,000–£8,000 for the same system roof-mounted. The extra cost covers the mounting frame, foundations (ground screws or concrete), underground cabling, and planning permission fees. VAT on domestic solar is currently 0%.
Are ground mounted solar panels more efficient than roof mounted?
The panels themselves are identical. However, a ground mounted system can be positioned at the perfect angle (30–40°) and oriented due south, which can produce up to 20% more electricity than a roof system on a sub-optimal roof. If your roof already faces south at a good angle, there is no efficiency difference.
How much space do I need for ground mounted solar panels?
A 4kW system (9 panels) needs approximately 25–30 square metres of unshaded ground. A 6kW system needs around 40m². You also need to account for spacing between rows to avoid self-shading, and setback from boundaries to satisfy planning requirements.
Can I add a battery to a ground mounted solar system?
Yes. Ground mounted systems connect to your home in exactly the same way as roof systems, so you can add a battery, connect to the Smart Export Guarantee, and use all the same equipment. The inverter and battery are typically installed inside your property.
Do ground mounted solar panels increase property value?
Solar panels generally increase property value, and ground mounted systems have the added benefit of being removable — they do not alter the building itself. However, the planning permission remains with the land, so a new owner could keep or remove the system.
Can I install ground mounted solar panels myself?
You can legally install the panels yourself, but to be eligible for the Smart Export Guarantee and receive MCS certification, the system must be installed (or at minimum signed off) by an MCS-certified installer. We strongly recommend professional installation for safety and warranty reasons.
What maintenance do ground mounted solar panels need?
Ground mounted panels are easier to maintain than roof panels because they are accessible without scaffolding. Clean them 1–2 times per year with water and a soft brush. Check the frame fixings annually. Keep vegetation trimmed around the base to prevent shading. The inverter should be serviced every 5–10 years.
Related Guides
Sources
- Planning Portal — Permitted Development for Householders — planningportal.co.uk
- Energy Saving Trust — Solar Panels — energysavingtrust.org.uk
- MCS — Find a Certified Installer — mcscertified.com
- Ofgem — Smart Export Guarantee — ofgem.gov.uk
- GOV.UK — Town and Country Planning (General Permitted Development) Order 2015 — legislation.gov.uk
Last updated: March 2026
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
John Rooney is the founder of Solar Info and has been covering the UK solar energy market since 2023. He fact-checks all content against official MCS and Ofgem data and maintains relationships with MCS-certified installers across the UK.
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