Solar farm development
Archaeology for Solar Farm Development in Cambridgeshire
Solar schemes can combine broad shallow impacts with concentrated deeper works. Archaeological scope should follow those impacts and the site evidence, rather than treating the entire array as one uniform disturbance.
- Main opportunity
- Arguing preservation in place across the array
- Real disturbance
- Cables, tracks, inverters, substation
- Evidence needed
- Element-by-element disturbance model
- Typical method
- Targeted work on intrusive elements
Why this scheme type carries the requirement it does
Pile-driven mounting, cable trenching, access tracks, inverter stations and substation compounds disturb ground very unevenly. Much of a solar site may see almost no disturbance at all, while cable runs and compound bases are locally intrusive.
The approach that keeps it proportionate
Model disturbance element by element rather than treating the whole lease area as impacted. A well-evidenced disturbance model is the basis for arguing that mitigation should follow the cable routes and compounds, with preservation in place across the array itself.
Issue an impact plan, not just a panel layout
Mark pile depths, cable trenches, access tracks, compounds and substations separately. Design-led avoidance needs evidence of deposit depth and an accepted method; a light-touch panel layout alone does not demonstrate preservation.
Continue
Before appointing
Turn the requirement into a defined programme decision
Confirm the planning trigger, the area and depth of disturbance, any existing archaeological evidence, and the date that matters to the wider programme. That is the minimum information needed to decide whether the next step is appraisal, evaluation, mitigation or a regulator discussion.
Sources and further reading
We use current public policy and guidance to keep this practical explanation grounded. Sources checked 19 September 2026.
- National Planning Policy Framework ↗
Ministry of Housing, Communities and Local Government
- Historic environment: planning practice guidance ↗
Ministry of Housing, Communities and Local Government
- Standards and guidance ↗
Chartered Institute for Archaeologists
Questions
Common questions on this
Will we have to excavate the whole field?
Very often not. Where the design genuinely limits disturbance to cable routes, tracks and compounds, a proportionate scheme concentrates on those, provided the disturbance model is evidenced rather than asserted.
Project review
Archaeology on a solar farm development scheme?
Send the impact plan, depth schedule, planning requirement and the milestone driving your decision. Include the sector-specific information listed above so the review can address your actual scheme.