UK approves 1.2 GW of new solar capacity

The UK government has recently approved 1.2 GW of new solar capacity1 across three major projects in England, marking a significant step towards its ambitious renewable energy targets. This surge in approvals highlights the government's commitment to expanding clean power infrastructure and signals a dynamic period for solar development in the country. Understanding the different planning pathways for solar projects, from rooftop panels to larger installations, is key for property owners looking to participate in the energy transition.

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Recent UK solar project approvals and their significance

The recent approvals represent a substantial boost to the UK's solar pipeline, underscoring the nation's drive to increase its renewable energy generation. These decisions pave the way for construction to begin on some of the largest solar plants in England.

The scale of new solar capacity

In a concentrated period, the UK government granted planning approval for 1.2 GW of new solar capacity across three significant projects in England. These include the 740 MW One Earth Solar Farm near Lincoln, the 320 MW Peartree Hill Solar Farm in East Yorkshire, and the 150 MW Dean Moor Solar Farm in West Cumbria. These projects received approval through the National Significant Infrastructure Planning (NSIP) stream, a process reserved for major energy infrastructure.

Impact on the UK's 2030 solar target

These approvals are crucial for the UK to meet its clean energy ambitions. The government has targeted at least 45 GW of deployed solar capacity by 2030. This goal represents a significant increase from current levels and positions solar power as a vital component of the UK's Clean Power 2030 strategy. The UK government has approved a record number of large-scale solar projects since the last general election in summer 2024.

The role of co-located battery energy storage systems

A notable feature of these newly approved projects is the expectation that each will install a co-located battery energy storage system (BESS) on site. Co-location, where renewable generation like solar is paired with battery storage, is becoming a standard component of large solar farm developments. BESS helps manage the intermittent nature of solar power by storing excess energy generated during peak sunshine hours and releasing it when demand is high or generation is low. This enhances grid stability and ensures a more consistent supply of renewable electricity, reducing reliance on fossil fuel-based backup generation.

Understanding solar project approval pathways

The planning and regulatory process for solar installations in the UK varies significantly depending on the scale and location of the project. Property owners need to identify the correct pathway for their specific needs.

Permitted development rights for residential solar

For most UK homeowners, installing solar panels on their roofs does not require full planning permission. This is thanks to permitted development rights, which allow certain types of development without needing a formal application to the local council. However, exceptions apply, particularly for listed buildings, properties in conservation areas, or unusually large systems. For example, panels on a listed building always require listed building consent. Similarly, ground-mounted solar panels often have stricter conditions and may require planning permission if they exceed certain size or proximity limits.

Planning permission for smaller commercial installations

Many rooftop solar PV systems on commercial properties also fall under permitted development rights, meaning a full planning application is not needed if specific criteria are met. These criteria typically include limits on how much the system can protrude from the roof surface, its height, and whether the building is listed or in a protected heritage setting. For commercial projects, planning permission is more likely to be required for ground-mounted systems, installations in designated areas like conservation zones, or those that significantly alter a property's external appearance.

The national significant infrastructure planning (NSIP) process

Large-scale energy projects, such as the recently approved solar farms, are subject to the NSIP process. This framework, established under the Planning Act 2008, provides a structured system for approving nationally significant infrastructure projects, including those in energy, transport, and waste. For solar farms in England, projects with a generating capacity of 100 MW or greater must secure planning permission through the NSIP process, with the final decision made by central government rather than local planning departments.

Navigating the NSIP process for large-scale solar

The NSIP process is complex and designed for projects with a significant national impact. It involves multiple stages and extensive stakeholder engagement.

Eligibility and thresholds for NSIP

As noted, solar farms in England with a capacity of 100 MW or more are considered NSIPs. This threshold ensures that only the largest projects, those deemed nationally significant for energy supply, go through this centralised approval route. Projects below this threshold are typically decided by local planning authorities.

Stages of the NSIP application

The NSIP process culminates in a Development Consent Order (DCO), which consolidates multiple permissions into a single order, covering planning permission, land acquisition powers, and environmental permits. The process involves several stages:

1. Pre-application: Developers conduct extensive consultations with local communities, statutory bodies, and other stakeholders.
2. Acceptance: The Planning Inspectorate decides whether the application meets the required standards for examination.
3. Pre-examination: Further consultation and submission of detailed documents.
4. Examination: A rigorous public examination of the application by an Examining Authority, involving hearings and written submissions.
5. Decision: The Examining Authority makes a recommendation to the relevant Secretary of State, who then makes the final decision.
6. Post-decision: Implementation of the DCO and any associated requirements.

Key stakeholders and consultation

Given the scale of NSIPs, stakeholder engagement is critical. This includes local authorities, environmental bodies, community groups, and the public. The process involves national-level scrutiny, with impacts tested against National Policy Statements. This ensures that projects are not only technically viable but also consider their environmental and social impacts.

Key considerations for UK solar project development

Developing any solar project, regardless of scale, requires careful consideration of several factors to ensure its viability and successful integration.

Site selection and environmental impact

For large-scale solar farms, site selection is paramount, focusing on factors like solar irradiance, grid proximity, and minimal environmental impact. Developers must conduct thorough environmental assessments to address concerns such as biodiversity, landscape impact, and agricultural land use. For residential and smaller commercial installations, considerations include roof orientation, shading, structural integrity, and visual impact, especially in sensitive areas like conservation zones.

Grid connection and infrastructure

Connecting solar installations to the grid is a crucial step. For large projects, this involves complex infrastructure development and coordination with Distribution Network Operators (DNOs) or National Grid. For smaller microgeneration systems, a G98 application process with the local DNO is typically required to ensure the system can safely connect and export electricity. The increasing demand for grid connections is a challenge across all scales of solar development.

Community engagement and local benefits

Engaging with local communities is vital for the successful development of solar projects. This is particularly true for large solar farms, where community acceptance can significantly influence the planning process. Developers often propose local benefits or community funds to mitigate impacts and foster positive relationships. For smaller projects, clear communication with neighbours and adherence to local guidelines can prevent disputes.

Financial incentives and support for solar projects

The UK government offers various mechanisms to support low-carbon electricity generation, making solar projects more financially attractive.

Contracts for difference (CfD) allocation rounds

The Contracts for Difference (CfD) scheme is the government's primary mechanism for incentivising investment in renewable energy, including large-scale solar. CfDs provide developers with long-term price certainty, protecting them from volatile wholesale electricity prices. In return, if the market price for electricity rises above an agreed "strike price," generators pay back the difference, protecting consumers. The scheme operates through competitive allocation rounds, with the eighth round opening for bids shortly after the recent solar farm approvals.

Other funding and investment opportunities

Beyond CfDs, other funding and investment opportunities exist for solar projects. These can include private investment, green finance initiatives, and, for homeowners, schemes like the Smart Export Guarantee (SEG), which pays for electricity exported to the grid. The government also explores reforms to facilitate financing for domestic solar installations and funds solar projects for public sector buildings.

Your power play: getting started with solar approval

Navigating the planning and regulatory landscape for solar projects can seem daunting, but with clear guidance, property owners can make informed decisions. Fuse Energy empowers property owners by demystifying the solar project approval process, enabling them to make informed decisions about installing solar on their residential properties.

Initial steps for property owners

1. Determine project scale: Identify whether your project is residential, small commercial, or large-scale utility, as this dictates the planning pathway.
2. Check permitted development rights: For residential and many commercial rooftop installations, check if your project falls under permitted development rights, considering factors like listed building status, conservation areas, and system size.
3. Consult local planning authority: If in doubt, or if your project has specific complexities (e.g., ground-mounted systems, sensitive locations), contact your local planning authority for pre-application advice.
4. Consider BESS co-location: For any solar installation, consider integrating a battery energy storage system to maximise self-consumption and enhance grid benefits.
5. Explore financial support: Research available financial incentives like the CfD scheme for large projects or the SEG for residential systems.
6. Prepare documentation: Gather all necessary documentation, including site plans, design details, and environmental assessments, if a full planning application is required.

Resources and further guidance

For detailed information on planning permission for residential solar panels, consult official government guidance and your local council's planning portal. For larger projects, the Planning Inspectorate website provides details on the NSIP process. While Fuse Energy focuses on residential energy supply and home solar installations, understanding the broader landscape of UK solar development helps contextualise the nation's energy transition.

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References

1. PV Magazine. UK approves PV projects totaling 1.2 GW