Battery Storage Planning & BESS Projects: How UK Grid Storage Infrastructure Gets Approved

Introduction: The Rise of Battery Storage in UK Energy Infrastructure

The UK's transition to net-zero carbon emissions is driving unprecedented investment in renewable energy and grid storage infrastructure. Wind and solar generation are now the cheapest sources of new electricity, but their intermittency creates a critical challenge: the grid must balance supply and demand in real time. Battery Energy Storage Systems (BESS) solve this problem by storing excess renewable generation and releasing it when demand peaks or wind and sun are low. As a result, battery storage has become one of the fastest-growing sectors in UK energy infrastructure, with hundreds of projects at various stages of planning, construction and operation.

For manufacturers, architects, contractors and suppliers, this growth represents enormous opportunity—but only if you can identify and engage with projects early. Most businesses discover battery storage opportunities through construction tenders or via incumbents like Glenigan and Barbour ABI, by which time design is finalised and supplier selection is underway. The real competitive advantage lies in the planning stage: when applications are first submitted to local authorities, before design is locked, before budgets are finalised, and before the supply chain is engaged. This is where Planning Signal's battery storage planning application data becomes invaluable.

What Is a Battery Storage Planning Application?

A battery storage planning application is a formal submission to a local planning authority for permission to build, expand or modify a Battery Energy Storage System (BESS) or grid storage facility. These applications cover a wide range of project types and scales:

• Utility-scale lithium-ion battery installations (typically 10 MW to 500+ MW), often co-located with solar or wind farms to create hybrid renewable-plus-storage schemes.
• Standalone BESS facilities on industrial or brownfield land, designed to provide grid services and frequency support.
• Commercial and industrial battery storage systems for businesses seeking energy resilience, demand-side management, or revenue from grid services.
• Retrofits and expansions to existing renewable energy sites, adding storage capacity to proven locations.
• Repurposing of former industrial, manufacturing or power generation sites for modern battery storage infrastructure.

Each application is submitted under the Town and Country Planning Act 1990 (or equivalent in Scotland, Wales and Northern Ireland) and must demonstrate compliance with local planning policy, environmental regulations, grid connection standards, and health and safety requirements. The planning process typically takes 8–13 weeks from validation to decision, though complex or contentious applications may take longer. During this period, the application is publicly available on the local authority's planning portal, and the applicant and their agents are actively engaging with planners, consultees, and the local community.

The Planning Process for Battery Storage Projects

Understanding the planning process is essential for suppliers and contractors seeking to engage early with BESS projects. The process typically unfolds in these stages:

Pre-application consultation: Before submitting a formal application, developers often engage with the local planning authority through pre-application advice. This is an informal stage where the applicant and their agents (architects, engineers, planning consultants) explore the site, understand planning policy, and identify potential issues. This stage is not always publicly visible, but it is where early conversations with supply partners often begin.

Application submission: The applicant submits a formal planning application to the local authority, including site plans, design drawings, environmental assessments, grid connection letters, and a detailed planning statement. For battery storage, applications typically include technical specifications of the battery system, power electronics, control systems, and auxiliary infrastructure (transformers, switchgear, access roads, fencing). This is the point at which Planning Signal begins tracking the application.

Validation and consultation: The local authority validates the application (checking it is complete and meets statutory requirements) and then consults with statutory consultees—typically the Environment Agency, Health and Safety Executive, local highways authority, and grid operator (National Grid or DNO). The applicant may also carry out public consultation. This stage typically lasts 4–8 weeks and is when objections and representations are submitted.

Assessment and negotiation: Planning officers assess the application against local planning policy, national planning policy, and environmental and technical requirements. If issues arise, officers may negotiate with the applicant to secure amendments, conditions, or legal agreements. This is a critical stage for supply partners: if you're engaged early, you can help shape technical solutions and specifications that satisfy planning requirements.

Decision: The planning officer issues a recommendation (approval or refusal) and the application is decided by the planning committee or under delegated authority. Approval typically comes with conditions (e.g., detailed design approval, environmental monitoring, decommissioning plans). Once approved, the applicant can begin detailed design and procurement.

Key Stakeholders in Battery Storage Projects

A typical utility-scale BESS project involves multiple stakeholders, each with specific needs and decision-making authority:

The developer: Usually a renewable energy company, utility, or specialist energy storage firm. They own the project, secure grid connection, obtain planning permission, and manage construction and operation. Examples include established renewable developers, energy majors, and specialist BESS developers.

The planning and design team: Architects, civil engineers, electrical engineers, and planning consultants who prepare the application, liaise with the local authority, and design the facility. These firms are often appointed early and have significant influence over specification and procurement.

The grid operator: National Grid (for transmission-connected projects) or the local Distribution Network Operator (DNO) for distribution-connected projects. They assess grid connection feasibility, set technical requirements, and issue connection agreements. Grid connection requirements often drive specification of power electronics, control systems, and auxiliary equipment.

The battery system supplier: The manufacturer of the battery modules, battery management system (BMS), and thermal management equipment. Major suppliers include Tesla, LG Chem, Fluence, Saft, and others. These suppliers are typically appointed by the developer or EPC contractor during detailed design, after planning approval.

The EPC contractor: The Engineering, Procurement and Construction (EPC) contractor designs and builds the facility. They manage the supply chain, coordinate installation, and commission the system. Major EPC contractors in the UK battery storage market include Wärtsilä, Fluence, Saft, and specialist contractors.

Auxiliary suppliers: Manufacturers and suppliers of transformers, switchgear, cabling, control systems, civil works, and installation services. These firms are typically appointed by the EPC contractor during the procurement phase.

Why Early Engagement Matters: The Planning Stage Advantage

For manufacturers and suppliers, the planning stage offers several critical advantages over later engagement:

Influence over specification: During planning and early design, technical specifications are still being refined. If you're engaged early, you can influence decisions about battery chemistry, power electronics, control systems, and auxiliary equipment. By the time a tender is issued, these decisions are often locked.

Relationship building: Early engagement with the developer, design team, and EPC contractor builds relationships and trust. When procurement begins, you're a known quantity with an established understanding of the project.

Lead time: Planning approval typically takes 8–13 weeks. Detailed design and procurement may take a further 3–6 months. By engaging at the planning stage, you gain 4–6 months of lead time over competitors who wait for construction tenders.

Cost advantage: Early engagement is cheaper than competing on price at tender stage. You can shape the specification to your strengths, propose innovations, and build value rather than competing on cost alone.

Market intelligence: Tracking planning applications gives you visibility of the pipeline of projects in your region or sector. You can identify hotspots, track competitor activity, and plan your own capacity and investment accordingly.

Environmental and Technical Requirements for Battery Storage

Battery storage projects must satisfy several layers of environmental and technical regulation, all of which influence planning applications and procurement:

Environmental assessment: Utility-scale BESS projects typically require an Environmental Impact Assessment (EIA) under the Town and Country Planning (Environmental Impact Assessment) Regulations 2017. The EIA must assess impacts on landscape, ecology, noise, traffic, air quality, and other environmental factors. This drives specification of noise-control measures, landscaping, and operational protocols.

Grid connection standards: The grid operator (National Grid or DNO) sets technical requirements for grid-connected battery storage, including power quality, frequency response, fault ride-through, and control system standards. These requirements are set out in the grid connection agreement and drive specification of power electronics and control systems.

Health and safety: Battery storage facilities must comply with the Health and Safety at Work etc. Act 1974, the Control of Major Accident Hazards (COMAH) Regulations 2015, and industry standards such as BS EN 62619 (battery safety) and BS EN 50160 (power quality). These requirements influence facility design, safety systems, and operational procedures.

Building regulations: The facility must comply with Building Regulations, including fire safety, structural integrity, and electrical safety. This drives specification of fire suppression systems, structural design, and electrical safety equipment.

Environmental permitting: Depending on the site and battery chemistry, the facility may require an Environmental Permit under the Environmental Permitting (England and Wales) Regulations 2016. This applies to certain battery storage facilities and drives specification of containment, monitoring, and waste management systems.

Regional Hotspots and Market Trends

Battery storage investment is not evenly distributed across the UK. Certain regions and local authorities are seeing significantly higher volumes of applications, driven by factors such as renewable energy capacity, grid constraints, industrial land availability, and local planning policy support.

England accounts for the majority of applications (472 out of 1,105), reflecting the larger population, higher electricity demand, and greater renewable energy capacity. Scotland (84 applications) is a major hub for renewable energy and battery storage, driven by high wind capacity and supportive policy. Wales (36 applications) and Northern Ireland (12 applications) have smaller but growing pipelines.

Within England, hotspots include areas with high renewable capacity (East Anglia, the South West, the Midlands) and areas with grid constraints (the South East, the North West). Local authorities with supportive planning policies and available industrial land tend to see higher application volumes.

For suppliers and contractors, tracking regional trends helps identify where to focus sales efforts, where to build local partnerships, and where to invest in capacity and expertise.

Conclusion: Turning Planning Applications into Leads

Battery storage represents one of the most dynamic and fastest-growing sectors in UK energy infrastructure. For manufacturers, architects, contractors and suppliers, the opportunity is enormous—but only if you can identify and engage with projects early. By tracking battery storage planning applications, you gain visibility of projects at the stage when design is still being shaped, when specifications are being finalised, and when procurement decisions have not yet been made. This is where real competitive advantage lies: early visibility, early engagement, and the chance to influence project outcomes. Planning Signal's database of 1,105+ battery storage planning applications across the UK gives you that early visibility and the tools to turn planning applications into leads, relationships, and wins.