As the UK accelerates its transition to renewable energy, the pressure to identify sites and advance viable developments has never been greater.
From battery storage to solar and wind farms, the success of any renewable energy project is shaped during earlier stages. In addition to finding available land, effective renewable energy site selection involves identifying locations that are commercially, technically, and strategically viable.
However, determining site viability is rarely straightforward. Developers must consider a mix of factors, including planning policy, environmental constraints, land ownership, and access to grid infrastructure. Each of these influences whether a site can be brought forward for development.
The challenge is that this information is often difficult to analyse and fragmented across multiple sources. As a result, significant time can be spent assessing sites that fall short of the necessary criteria.
This is where a more streamlined, data-driven approach is essential.
By bringing together land, planning, and energy infrastructure data into a single environment, platforms like Landstack help users identify and assess renewable energy sites more efficiently, evaluate viability with greater confidence, and make more informed decisions at every stage of the process.
In this guide, we explore the key factors that determine renewable energy site suitability and how technology can support effective site selection.
1. Proximity to Energy Infrastructure
For projects such as solar farms, wind installations, and battery storage, being located near substations, power lines, and other grid assets can significantly affect cost and deliverability.
The impact of distance is a major factor. The greater the distance from a substation, the higher the cost and complexity of connection, making proximity a key commercial consideration.
Connection costs increase with cable length, with National Grid identifying it as one of the most significant drivers of overall project expense. As a result, even relatively small increases in distance can have a meaningful impact on viability.
In some cases, location alone can dramatically affect project outcomes. According to Haush, a 100MW wind farm in North Scotland could face network charges exceeding £37 million per year, while a similar project in southern England may pay under £5 million due to closer proximity to infrastructure and demand.
As a result, developers should prioritise sites that offer strong access to existing infrastructure. This improves the likelihood of securing a grid connection while reducing cost, risk, and delivery timelines in the initial stages of development.
2. Assessing Grid Capacity and Substation Availability
Access to grid capacity determines whether a site can be connected and brought forward for development.
Even sites located close to substations are not guaranteed a connection if there is limited capacity on the network. In these cases, developers may encounter long connection timelines, costly reinforcement works, or, in some instances, an inability to secure a connection altogether.
This has become an increasingly significant issue across the UK. There are currently around 400 gigawatts of renewable energy projects waiting to connect to the grid, with many offered connection dates stretching into 2030 and beyond.
As a result, grid access is now considered one of the most critical factors affecting project delivery, on par with planning constraints in some areas.
Understanding substation availability and demand headroom is consequently a crucial step in assessing renewable energy site suitability. Developers risk investing time in sites that are unlikely to progress, unless they have a clear visibility of capacity.
3. Identifying Land Parcels by Size and Location
Different renewable energy developments also require specific site sizes and configurations.
For instance, solar farms and battery storage projects typically need large, contiguous parcels of land.
In the UK, ground-mounted solar installations have a median footprint of around 2.25 hectares (5.6 acres) per MW of capacity, highlighting the scale of land required even for mid-sized projects.
Sites must also be positioned within areas that support development, taking into account proximity to infrastructure, surrounding land uses, and regional planning priorities.
This is particularly important given the growing demand for land, with ground-mounted solar already covering around 21,200 hectares, approximately 0.1% of the UK’s total land area.
4. Environmental Considerations and Planning Constraints
Even where land is well located and appropriately sized, development may be restricted by local planning policies or environmental designations.
These can include Green Belt land, National Parks, Areas of Outstanding Natural Beauty (AONBs), and Sites of Special Scientific Interest (SSSIs).
Additional factors such as flood risk, heritage constraints, and Biodiversity Net Gain (BNG) requirements can also limit the likelihood of securing planning permission.
These constraints can have a direct impact on project timelines and viability.
According to the UK government’s planning application statistics, only 19% of major planning applications are decided within the 13-week statutory target for determining large developments. This emphasises the potential for delays where constraints are not identified early.
BNG conditions also require developers to deliver at least a 10% net gain in biodiversity, adding another layer of assessment at the early stages of development.
As a result, understanding planning and environmental constraints early is essential. Without this visibility, developers risk progressing sites that are unlikely to receive approval or require significant mitigation, leading to delays and increased costs.
How Landstack Simplifies Renewable Energy Site Selection
Assessing the factors above in isolation is challenging. Developers are often required to source and analyse data from multiple platforms, making it difficult to evaluate sites efficiently or build a complete picture of suitability at scale.
A more integrated approach helps to address this challenge. By bringing together key datasets into a single environment, developers can assess multiple factors simultaneously and make faster, more confident decisions.
Landstack’s land information platform is designed to support this process. It combines environmental constraints, land ownership, planning data, and energy infrastructure into one system, helping users efficiently evaluate site potential.
Users can:
- Instantly visualise energy infrastructure, including substations, power lines, and key grid assets across a site.
- Explore substation capacity and demand headroom to understand connection potential.
- Quickly identify land parcels within specific size ranges and in proximity to critical infrastructure.
Landstack consolidates these insights into a single platform, reducing the need for manual data gathering and accelerating the renewable energy site selection process.
Book a demo to see how Landstack can help you find suitable renewable energy sites faster, or explore the platform’s features in more detail online.