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LiDAR Surveying for
Power and Energy
The reliability of the Philippine power grid depends on accurate, current data about every kilometer of transmission and distribution infrastructure. AB Surveying and Development provides aerial, mobile, and terrestrial LiDAR surveying for transmission developers, distribution utilities, and power project proponents delivering the corridor surveys, vegetation analysis, and infrastructure mapping that keep the grid safe, compliant, and expansion-ready.
Challenges we solve
Common Challenges in Power & Energy and How LiDAR Addresses Them
Challenges
Transmission line corridor surveys are slow and dangerous using conventional ground methods
Vegetation encroachment on existing lines is identified too late — after faults occur
How LiDAR Helps
Conventional ground surveys of transmission line corridors require crews to traverse steep, forested, or otherwise inaccessible terrain for weeks or months — creating safety exposure, schedule risk, and high mobilization costs. For long-distance transmission projects crossing multiple provinces, the logistical complexity alone can delay project development significantly. Aerial LiDAR surveys cover transmission corridors at aircraft speed, capturing complete terrain and vegetation data in a fraction of the time — with no personnel exposure to the hazards of remote corridor terrain. The result is a comprehensive corridor dataset delivered in weeks rather than months, allowing route design and right-of-way acquisition to proceed on schedule.
Vegetation contact is one of the leading causes of transmission and distribution line faults in the Philippines particularly during typhoon season when wind-loaded branches breach clearance margins. Conventional vegetation management relies on periodic visual inspection, which is inconsistent and often identifies problems only after a fault has occurred. Aerial LiDAR captures both the bare-earth terrain and the full vegetation canopy in a single survey pass. By comparing vegetation height against modeled conductor sag profiles, engineers can automatically flag every span where clearance is insufficient — prioritizing trimming crews, reducing fault frequency, and improving grid reliability without waiting for the next outage.
New transmission route design lacks reliable terrain data for alignment optimization
New transmission line routes are often designed using coarse topographic data that lacks the resolution to support accurate tower spotting, foundation design, or precise ROW boundary delineation. The result is design assumptions that don't survive contact with actual ground conditions, leading to costly field revisions during construction. LiDAR-derived terrain models at sub-meter resolution allow engineers to perform accurate tower spotting, calculate precise span lengths, model conductor sag under load, and optimize the full route alignment entirely in the design environment — reducing field design changes and improving cost estimate accuracy before the project reaches financial close.
Substation and switchyard as-built records are incomplete or outdated
Substation expansion, equipment replacement, and protection system upgrades all depend on accurate as-built records of existing infrastructure. In practice, substation drawings are often outdated, incomplete, or lost — forcing engineers to conduct time-consuming manual measurements in live electrical environments. Terrestrial LiDAR scanners capture the complete substation geometry from safe standoff positions, producing a dense 3D point cloud from which accurate as-built drawings, clearance measurements, and equipment models can be extracted. The survey can typically be completed during a planned outage window without the extended access time that conventional survey methods require.
Power project EPC and permitting submissions require defensible survey data
Power generation and transmission projects in the Philippines require survey-grade geospatial data at multiple project milestones — feasibility, permitting, grid connection application, and EPC tender. Submitting imprecise or poorly documented survey data to the Energy Regulatory Commission, DOE, or NGCP creates compliance risk and can delay project approvals. AB Surveying provides fully georeferenced, survey-grade LiDAR datasets with documented accuracy reports, datum information, and metadata — formatted for submission to Philippine power sector regulatory bodies and structured to meet the data requirements of international EPC contractors and project lenders.
LiDAR Surveying Applications for Power and Energy
From new transmission route planning to existing grid maintenance, LiDAR data supports every phase of power infrastructure development and operations in the Philippines.
Transmission Line Corridor Survey
Aerial LiDAR survey of new and existing transmission corridors — capturing terrain, vegetation, and existing tower positions for route design, tower spotting, and right-of-way delineation.
Conductor Sag & Clearance Profiling
Measurement of conductor position and sag is used to verify clearance compliance, assess aging line behavior, and support line rating studies.
Tower Spotting
LiDAR-derived terrain profiles and cross-sections used to determine optimal tower placement, type selection, and foundation design minimizing structure count and earthworks cost along the full route.
Power Plant Site Survey
Aerial and terrestrial LiDAR for power generation site assessment — terrain modeling, access road design, drainage planning, and as-built documentation for plant infrastructure.
Vegetation Encroachment & Clearance Analysis
Automated identification of trees and vegetation violating minimum conductor clearance requirements enabling risk-based vegetation management and reducing transmission fault frequency.
Tower Position & Condition Survey
Accurate georeferencing of existing tower positions and structural geometry — for asset registry updating, foundation assessment, and maintenance planning.
New Transmission Route Design Support
Sub-meter terrain models of candidate transmission corridors — supporting route alignment optimization, tower spotting, foundation design, and ROW boundary definition.
Grid Expansion Feasibility Data
LiDAR terrain and corridor data formatted for grid connection applications, ERC permitting submissions, and DOE project registration requirements.
What Our Clients Get:
3D Colorised Point Cloud Data
A point cloud data containing millions of precisely located points overlaid with orthophoto RGB creating a realistic 3D city model.
PROJECT SPOTLIGHT
AB Surveying and Development conducted an Aerial Topographic LiDAR Survey for Gigasol 2, Inc. covering the Palauig–Botolan transmission line corridor in Zambales. Using the RIEGL VUX-1LR — a long-range airborne LiDAR system well-suited for linear corridor surveys — the team captured 1,635 hectares of terrain data along the transmission route, providing Gigasol 2 with the accurate corridor geometry, terrain model, and vegetation data needed to support transmission line design and construction.
AREA SURVEYED
1,635 ha.
YEAR COMPLETED
2021
Our Services
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We were amazed at how fast AB Surveying and Development's LiDAR mapping was as compared to conventional surveying methods.
With approximately 1,000 hectares of land area, the Kiangan, Ifugao project site was accurately generated as a topographic map and was very useful for the planning and design of the proposed Hucab Mini Hydro Electric Plant. The team was very accommodating and helpful in every step of the way, and they almost eliminated the need for physical site inspection because of their attention to detail!
Highly recommended to all our industry peers!
Patrick Talibon, Business Line Manager, Pacific Tech Solutions, Inc.