A solar plant's structure is unforgiving geometry: thousands of piles whose positions, alignments and tolerances come straight from the structure or tracker supplier's specification. Setting them out (trasare) is a survey production job — sustained accuracy at construction rhythm, so the ramming crews never stand idle and the mounting crews never meet a row that does not line up.
Tracker rows are the strict case: single-axis trackers demand tighter alignment along the row than fixed-tilt structures, and the supplier's tolerance sheet — not habit — defines what "good enough" means. We work from that sheet, confirm achievability on the actual terrain, and document compliance point by point.
Stakeout sits on the construction critical path, so we agree the campaign, rhythm and mobilization terms before works start rather than improvising visit by visit. Weather windows, crew advance rates and design revisions all shift the schedule — a local surveyor 30 minutes away absorbs those shifts; one mobilizing across the country does not. Our field range covers Alba, Cluj, Mureș, Sibiu and Hunedoara counties.
One practical warning from experience: when grading changes the terrain after the design freeze, pile lengths and positions may need revisiting. Flag design revisions to us immediately — staking an outdated revision is the most common avoidable rework on PV sites.
Centimeter-level positioning with RTK plus total-station verification — sufficient for standard pile and tracker specifications. Send us the supplier's tolerance sheet and we confirm method and achievability in writing before mobilization.
It depends on terrain, access and marking requirements, which is why we agree a rhythm with the contractor upfront and staff accordingly, rather than quoting a universal number that the first muddy week would falsify.
Yes — post-installation verification measurements against the specification, per zone or per sample as your quality plan requires, feeding directly into the as-built documentation.
By the campaign, not by the visit: point count, agreed rhythm, expected re-staking allowance and mobilization terms go into one written offer before works start. Per-visit improvisation is how stakeout becomes both the smallest and the most disputed line in an EPC budget — we structure it so it is neither.
Whoever owns the construction sequence — usually the EPC's site manager or the ramming subcontractor's foreman — with the developer's project manager kept in the loop on progress and any design conflicts. One WhatsApp group with the stakeout plan, the daily zones and the handover tables has proven to be the entire coordination apparatus a well-run site needs.
Send us a WhatsApp message describing your project — we usually reply within one business day.