Temporary CCTV for Solar Farm Construction Sites: Guide

A solar farm construction site presents a security risk profile that is often more acute than the operational site it will become. Thousands of panels, kilometres of copper cabling on reels, inverters, transformers and battery storage units may be delivered to site weeks before they are installed, stored in open lay-down areas with minimal physical protection. The value of materials on a 20 MW construction site can easily exceed £5 million at any point during the cable and panel installation phases.

Organised criminal groups actively monitor planning portals and construction activity in their operating areas. Solar farm construction in rural locations with predictable delivery schedules, long working hours and temporary fencing is an attractive target. Theft of copper cable from a solar farm construction site can cause programme delays of weeks and material replacement costs running to six figures.

Temporary fencing alone is not a deterrent. Heras panels can be lifted and moved in seconds. Without electronic detection and monitored response, a construction site relies entirely on the presence of workers during the day and absolute darkness at night. This is not a defensible security posture for a site carrying millions of pounds of exposed plant and materials.

Construction-phase incidents also have downstream consequences beyond the immediate theft. Delays to energisation extend the period before the site begins generating revenue, breach power purchase agreement (PPA) milestones, and may trigger liquidated damages provisions in EPC contracts. The cost of a comprehensive temporary CCTV system is minimal against these potential exposures.

Rapid-deploy CCTV towers are self-contained units designed for immediate deployment with no groundworks, trenching or mains connection required. A standard unit comprises a telescopic steel mast of 6–9 metres, a solar panel array of 300–400 Wp, an LFP battery bank of 3–5 kWh, a 4G/5G router, and typically a thermal IR detection camera combined with a colour PTZ or starlight CMOS camera for verification and evidence capture.

Deployment is straightforward: the tower base is ballasted with water or sand bags, the mast is raised, cameras are oriented by the installation engineer, and the system is connected to the ARC monitoring platform. The entire process takes two to four hours per tower. For emergency deployments following a security incident, specialist providers can have towers operational within 24 hours of instruction anywhere in mainland UK.

Tower placement for construction sites follows different logic from operational site design. Rather than purely perimeter coverage, towers should prioritise high-value lay-down areas, cable drum storage, transformer and inverter delivery zones, and site access points. Coverage should follow the programme: as materials move through the site, tower positions should be adjusted to maintain focus on the highest-value exposed assets.

Camera specifications for construction sites should include a minimum of 2 MP resolution for optical cameras, with thermal detection sensitivity of 50 mK or better for perimeter detection. ANPR-capable cameras at main access gates log all vehicle movements and can alert operators to vehicles that arrive outside normal working hours — a key indicator of reconnaissance or after-hours theft activity. Our solar farm CCTV cameras page details suitable camera specifications.

Responsibility for temporary security on solar farm construction sites varies between projects. On some schemes, the developer retains responsibility for site security throughout; on others, the EPC contractor assumes security obligations as part of the construction contract. Clarity at the procurement stage is essential to avoid the dangerous situation where both parties believe the other has arranged CCTV.

Developers specifying temporary CCTV in EPC contracts should define minimum requirements clearly: number of monitored towers, minimum camera coverage area, BS 8418 compliance basis, ARC accreditation level, response protocol and reporting requirements. A performance-based specification — defined by detection coverage and response capability rather than specific equipment — allows EPC contractors to choose compliant suppliers while maintaining minimum standards.

Where the developer procures temporary CCTV directly, the security provider should liaise closely with the EPC contractor's site manager to coordinate tower placement adjustments as the programme progresses. A fixed placement agreed at contract start will rarely remain optimal throughout a construction programme of 9–18 months. Monthly review meetings and a defined process for tower relocation requests should be included in the service agreement.

Insurance implications must also be addressed at procurement. Construction all-risks (CAR) policies typically require evidence of security measures commensurate with the site risk. Temporary monitored CCTV is explicitly requested by some insurers as a condition of cover for solar farm construction, particularly for projects above £10 million in contract value. Contact us to discuss procurement support for your construction security specification.

Temporary CCTV towers should be connected to a BS 5979 Cat II Alarm Receiving Centre (ARC) for monitored response. During construction-phase monitoring, operators must be briefed on the site layout, working hours, approved vehicle types and contractor access patterns to minimise false alarm rates. A high false alarm rate — driven by construction activity such as moving materials, dust, machinery and night-shift workers — reduces operator vigilance and degrades response quality.

Audio challenge capability is essential. When an intrusion is detected outside working hours, the ARC operator should be able to issue a voice challenge through a speaker mounted on the camera tower: 'You are being recorded. Leave the site immediately. Police are being contacted.' This audio warning is highly effective at deterring opportunistic intruders who were unaware of monitoring. It also provides a documented evidence trail of the operator's response.

Police response under NPCC Secured by Design protocols requires that the ARC holds a valid Unique Reference Number (URN) for the site. URN registration should be completed before the site becomes operational, using the construction address. Where a site is too remote or rural for a rapid police response, the ARC should have an agreed keyholding arrangement with a local SIA-licensed security company that can attend within 20–30 minutes.

Monitoring reports should be provided to the developer and EPC contractor at agreed intervals — weekly during high-risk phases such as cable installation, monthly during lower-risk groundworks periods. Reports should include alert counts by category, response times, video evidence of incidents and recommendations for coverage adjustments.

Temporary CCTV is most effective when integrated with other construction-phase perimeter security measures. Temporary Heras fencing topped with barbed or razor concertina wire significantly increases the delay time available between a fence breach and access to high-value materials. Perimeter lighting on PIR-activated circuits eliminates the cover of darkness during the long winter evenings of a multi-year construction programme.

Access control at the main site gate is a frequently underspecified element of construction security. A staffed gatehouse during working hours, supplemented by ANPR cameras and an after-hours intercommunication system linked to the ARC, creates a robust access control layer. Vehicle and personnel logs generated by ANPR and access control systems support insurance claims, health-and-safety investigations and police enquiries in the event of an incident.

For sites where multiple contractors are working simultaneously, the risk of an 'insider' incident — materials removed by a contractor's employee or subcontractor — is real. CCTV coverage of lay-down areas and material storage should be maintained throughout, and access to high-value material zones should be restricted to authorised personnel only. Solar farm intrusion detection systems covers the technology options for construction-phase detection in more detail.

The transition from temporary to permanent CCTV is a critical phase that is frequently underplanned. If the permanent system is not ready when the temporary towers are removed, the site is left without electronic security during the commissioning and handover period — often a time when the site contains both expensive permanent equipment and residual construction materials.

Planning the transition should begin at project inception. The permanent CCTV design should be agreed alongside the temporary system, and the commissioning programme for the permanent system should be built into the overall project schedule with a realistic allowance for installation, cabling, commissioning and ARC integration. A staggered handover — where temporary towers remain operational in sections until the permanent cameras covering each zone are commissioned and verified — is best practice.

The ARC should be notified of the handover date and provided with updated site drawings showing the permanent camera positions and new coverage zones. Operator briefings should be refreshed to reflect the permanent system's capabilities, access points and response procedures. The BS 8418 commissioning certificate for the permanent system should be obtained before the temporary system is decommissioned. Our wireless CCTV for remote solar farms article covers how wireless towers can be retained as part of a hybrid permanent system.

Some temporary tower providers offer a lease-to-permanent pathway where equipment deployed during construction is refurbished and integrated into the permanent system at a reduced capital cost. This avoids duplication of equipment investment and provides continuity of monitoring from the ARC. Evaluate this option at procurement to understand the total cost of ownership across both the construction and operational phases. Visit our solar farm CCTV systems page for permanent system design guidance.

The rental cost for a monitored temporary CCTV tower typically ranges from £400 to £900 per month per unit, depending on specification, monitoring level and contract term. A construction site requiring eight towers has a monthly security spend of £3,200–£7,200 — a fraction of the value of materials at risk and the cost of a single theft incident.

Mobilisation and demobilisation costs are additional one-off charges, typically £200–£500 per tower. Tower relocation within a site during the programme usually incurs a reduced charge of £100–£300 per movement. Include a contingency for at least four to six tower relocations per tower over a 12-month programme in your budget model.

The construction programme duration is the key driver of total temporary security cost. A 50 MW solar farm with an 18-month construction programme and ten monitored towers has a total temporary security spend of approximately £80,000–£130,000. Against a contract value of £30–£50 million and material theft exposure of £2–£5 million, this represents a security spend of well under 0.5% of project value — a highly cost-effective risk mitigation investment.

Construction-phase security is the precursor to permanent cover — see the wider case for CCTV on a solar farm, our guide to stopping cable theft on an active site and engineering a permanent perimeter security system so the temporary system migrates cleanly into operational cover.