The Complete Guide to Solar Planning Permission in Ireland (2024)

Understanding Solar Planning in Ireland

Ireland's solar energy sector has experienced unprecedented growth in recent years, but navigating the planning system remains one of the most challenging aspects of project development. This guide covers everything you need to know about obtaining planning permission for solar installations in Ireland.

What Requires Planning Permission?

Not all solar installations require planning permission in Ireland. The Planning and Development Regulations 2001 (as amended) provide planning exemptions for certain solar installations:

Domestic/Residential Exemptions

Solar panels on a house roof are generally exempt if they do not project more than 15cm from the roof surface

Ground-mounted domestic systems may be exempt if under 12 square metres and meet setback requirements

Systems must not be on a protected structure

Commercial and Industrial Exemptions

Rooftop solar on commercial/industrial buildings may be exempt under Class 3 of Schedule 2

Panels must not exceed the height of the roof ridge

Total panel area must not exceed 50% of total roof area

When Planning is Required

Ground-mounted solar farms almost always require planning permission. The key thresholds are:

Projects over 0.5 hectares typically require full planning permission

Projects above certain capacity thresholds may trigger Environmental Impact Assessment (EIA) requirements

Projects near protected structures, SACs, SPAs, or NHAs require additional scrutiny

The Planning Process for Solar Farms

Step 1: Pre-Application Consultation

Before submitting a formal planning application, we strongly recommend a pre-application consultation with the relevant local authority. This helps:

Identify key planning concerns early

Agree the scope of required supporting documents

Build a constructive relationship with the planning authority

Reduce the risk of further information requests

Step 2: Required Planning Documents

A typical solar farm planning application in Ireland requires:

Technical Documents:

Site layout plans (AutoCAD drawings)

Elevation drawings of panels and mounting structures

Photomontages and visualisations

Glint and glare assessment

Landscape Plan (prepared from client LVIA or arboriculture report)

Ecological impact assessment

Archaeology and cultural heritage assessment (where required)

Traffic impact assessment (for construction phase)

Drainage and hydrology assessment

Planning Reports:

Planning and design statement

Natura Impact Statement (for sites near European designated areas)

Environmental Impact Assessment Report (EIAR) for projects above EIA thresholds

Step 3: Submission and Determination

Local authority planning applications:

Standard determination period: 8 weeks

Can be extended by further information requests

Third-party appeals to An Bord Pleanála extend this significantly

Strategic Infrastructure Development (SID):

Projects over certain thresholds go directly to An Bord Pleanála

Typically involves pre-application meetings

Determination period: 18 weeks (target)

Recent Policy Developments

2022 Solar Guidelines (Draft)

The Department of Housing, Local Government and Heritage published draft solar energy guidelines in 2022. While not yet finalised, these guidelines signal a more permissive approach to solar development, particularly for agri-voltaic installations.

Renewable Energy Targets

Ireland's Climate Action Plan 2023 sets a target of 8GW of solar by 2030, up from approximately 1GW currently. This policy context supports solar planning applications, but does not override local planning concerns.

Grid Connection

Securing a grid connection offer from EirGrid or ESB Networks is a critical parallel process. Connection offers can take 12-24 months, so this process should be started early and run in parallel with the planning process.

Common Planning Issues and How to Address Them

Glint and Glare

This is the most commonly raised planning concern for solar farms in Ireland. A professional glint and glare assessment is almost always required and should be submitted with the initial application.

Visual Impact

In Ireland's predominantly rural landscape, visual impact is a key concern. A Landscape Plan with robust planting and screening proposals — drawn from your LVIA findings — significantly improves planning outcomes.

Landscape Character

Local development plans often identify sensitive landscape areas. Understanding the local landscape character assessment and positioning your development to avoid or mitigate impacts is crucial.

Conclusion

Successful solar planning in Ireland requires thorough preparation, local knowledge, and high-quality technical documentation. The investment in specialist planning consultants pays dividends in faster approvals and reduced risk of refusal.

Contact SolarPlan Ireland to discuss your project and get a tailored quote for the planning documentation you need.

Related Services

PV Planning Drawings Glint & Glare Analysis Landscape Plans

Frequently Asked Questions

Do I need planning permission for solar panels in Ireland?+

Small domestic rooftop systems are generally exempt from planning permission. Ground-mounted solar farms above 0.5 hectares and most commercial installations require full planning permission from the local authority.

What planning documents does a solar farm need in Ireland?+

A solar farm planning application typically requires site layout plans, elevation drawings, a glint and glare assessment, a landscape plan, a planning statement, and depending on scale, an EIAR.

How long does solar farm planning permission take in Ireland?+

Standard planning decisions take 8 weeks from validation. With pre-application consultations and potential further information requests, 4–6 months is a realistic end-to-end timeline.

What is an EIAR and when is it required for a solar farm?+

An Environmental Impact Assessment Report (EIAR) is required for solar farms above 500kW in certain categories, or where the project is in a sensitive area. An Bord Pleanála handles strategic development applications above 100MW.

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Technical Guide