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As the ATTSolar facility takes shape at the University of Pretoria, a 10.5 MWp solar PV plant on unused university land needed perimeter lighting that could match the scale of the investment, without slowing down an active EPC construction programme. The lights have to cover the full boundary evenly, work with the electric fence already up around the site, and respond intelligently to movement after dark. Nuvo Energy, appointed EPC contractor for the project, brought in Perion Lighting to deliver it.
The scope: 2.1 km of fence-mounted perimeter lighting, currently being installed to run on a dimmed standby mode and switch to full brightness the moment the site's CCTV picks up movement.
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2.1KM |
3W LED Cool White LED Fixtures |
6M Fixture Spacing |
Why Fence-Mounted Lighting Works for Solar Farms Under Construction
| "The lights are faced downwards to illuminate both sides of the electric fence" - full coverage from a single row of fittings, no duplicate infrastructure required. |
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Most perimeter lighting problems on solar sites come down to the same thing: poles, trenching, and cable runs stacked on top of an already-busy construction programme. Perion Lighting's system skips that step entirely by mounting directly onto the fence that's already going in.
At ATTSolar, each fixture is being fitted to the electric security fence and faced downward, so a single light will illuminate both the inside and outside face of the fence line once installation is complete. No separate lighting structure, no extra poles competing for space along the boundary, the lighting simply becomes part of the fence.
How It's Being Installed
- Fixtures mount directly to the electric fence. No separate poles, no trenching, no additional civils work along the boundary.
- Every fixture faces downward. This single orientation will light both sides of the fence line from one row of fittings.
- Spaced every 6 meters. Consistent spacing across the full 2.1 km loop is designed to leave no dark gaps once the fence is fully lit.
- Set to run dimmed on standby. Under normal operation, the lights will hold a low baseline output, keeping energy use down along the full boundary length.
- Built to trigger full brightness on detection. The system is being connected to the site's CCTV, and once the dimmer unit arrives from the factory, movement along the fence will trigger the lights to jump to full brightness.
This isn't the first time Perion Lighting has secured over 2km of solar perimeter this way - see another 2.4 km solar park perimeter lighting project where the same fence-direct approach was used to protect a municipal solar PV plant.
What It Will Deliver: Coverage That Works With the Site
| Full Boundary Coverage Even 6m spacing across the full 2.4km perimeter, designed to leave no dark gaps along the fence. | Dual-Side Illumination One downward-facing fixture lights both faces of the electric fence at once. |
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| CCTV-Triggered Brightness Set to jump from dimmed standby to full output the instant movement is detected. | Energy-Efficient Standby Low baseline output designed to keep running costs down across the full perimeter length. |
| Fence-Direct Installation Mounts onto the electric security fencing already going up on site - no separate lighting structure required. | Built for Utility-Scale Sites Designed to hold up to continuous outdoor duty on active energy assets. |
Who Is This Right For?
If you're planning or building a solar PV plant and need perimeter lighting that works with your existing fence and security infrastructure rather than around it, this is the system built for that job. It's well suited to:
University and campus solar installations where security has to fit alongside everyday campus life. Municipal and utility-scale solar plants protecting high-value generation infrastructure. EPC contractors who need a perimeter lighting scope that won't compete with the main build programme. Private IPP and commercial solar developments looking for CCTV-integrated boundary security.
Wherever there's an electric fence going up around a solar asset, Perion Lighting's fence-direct system slots in without adding a second construction project to the site.
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Farm Perimeter? |
