Introduction

Commercial and utility-scale solar tracker projects demand precision, coordination, and specialist installation capability. While EPCs and developers lead project design, permitting, grid studies, and financial modelling, the construction and electrical execution phases determine whether the plant will perform as intended over its 20-plus-year lifespan.

This is where S.M.E.I. Renewables plays its strongest role.

We support EPCs by delivering the full on-site execution lifecycle – civil works, structural installation, tracker assembly, panel installation, DC stringing, AC cabling, AC tie-in and more – ensuring every component is built to engineering specifications and grid-ready.

The journey below outlines the key stages of a commercial solar tracker installation, with clear delineation between EPC-led activities and S.M.E.I.’s construction-execution strengths.

Stage 1: Feasibility & Site Assessment (EPC-Led)

What happens at this stage

EPCs and developers conduct all front-end activities, including:

• Irradiation analysis & yield modelling
• Tracker suitability assessment
• Grid-connection studies and utility engagement
• Commercial modelling (CapEx, OPEX, ROI)
• Permitting and environmental studies

 

S.M.E.I.’s supportive role

While feasibility is led by EPCs, S.M.E.I. provides constructability input, such as:

• Practical advice on access for construction equipment
• Installation sequencing guidance
• Providing feasibility costing for installation of the PV Plant

We do not perform feasibility, EPCM, or consulting functions, we provide the execution insights needed for EPCs to refine their engineering.

Stage 2: Engineering & Procurement (EPC-Led, S.M.E.I. Supports)

EPC responsibilities

EPC partners retain full responsibility for:

• System engineering
• Tracker and module technical design
• Electrical design basis
• Procurement of long-lead items
• Grid code compliance engineering

This ensures EPC designs translate smoothly into installation work packages.

Stage 3: Site Preparation & Civil Works (S.M.E.I. Executes)

Once EPC engineering is complete and permits are in place, S.M.E.I. mobilises to site to execute:

• Site clearance & earthworks
• Cut-and-fill, grading & drainage preparation
• Foundation installation (piles or concrete)
• Construction of access roads
• Trenching and ducting for cable routes
• Foundations for inverters, transformers & switchgear

S.M.E.I.’s civil and structural teams specialise in high-accuracy execution, ensuring all works match EPC-issued drawings and tolerances.

Stage 4: Tracker Installation & Mechanical Assembly (S.M.E.I. Executes)

S.M.E.I. installs the full tracker mechanical system, including:

• Staging of tracker materials
• Assembly of tracker frames & structural elements
• Installation of drives, motors, gearboxes & tracking controllers
• Alignment & mechanical commissioning checks
• Integration of tracker wiring pathways

Because trackers demand millimetre-level precision, our structural-mechanical teams coordinate closely with EC&I crews to ensure seamless integration.

Stage 5: Electrical Works & AC Tie-In (S.M.E.I. Executes)

This is one of S.M.E.I.’s strongest differentiators.

We execute all EC&I and AC-related installation work, including:

DC Works

• DC stringing
• Combiner box installation
• Conduit, cable tray & trenching installations

AC Works

• Inverter installation
• Transformer installation
• MV/LV switchgear installation
• AC cabling & termination
• Protection relay and metering equipment installation (as per EPC designs)

AC Tie-In Execution

While EPCs or developers manage grid approvals, S.M.E.I. executes the physical tie-in:

• Connecting the plant to the site’s AC distribution network or utility PCC
• Implementing EPC-specified grid-compliant protection settings
• Installing metering and synchronisation equipment
• Performing energisation steps under EPC or utility supervision

We do not perform grid studies or manage utility negotiations, we execute the infrastructure once EPC approvals are obtained.

Stage 6: Commissioning & Handover (Joint EPC + S.M.E.I.)

EPC Responsibilities

• Commissioning strategy
• Witness testing
• Utility coordination
• Performance validation

S.M.E.I. Responsibilities

Execution of all physical commissioning tasks:

• Mechanical tracker testing
• DC/AC circuit verification
• Protection & relay testing
• Inverter and transformer energisation
• Functional testing of trackers, motors, and controllers
• Final as-built documentation
• Onsite training for owner/operators if required

We perform all testing under the EPC’s commissioning plan.

Stage 7: Operation & Maintenance (Optional S.M.E.I. Service)

S.M.E.I. provides optional post-construction O&M services:

• Cleaning schedules (especially critical for trackers)
• Mechanical tracker inspections
• EC&I maintenance
• Diagnostic testing
• Remote monitoring support
• Corrective maintenance

This is an execution-only O&M service, not asset management or EPCM oversight.

Why EPCs Choose S.M.E.I. as Their Construction Partner

We do not compete with EPCs, we support them.

We specialise in:

• Civil works
• Structural installation
• Tracker assembly & mechanical execution
• Full EC&I installation
• AC tie-in
• On-site construction management
• Commissioning execution
• Long-term maintenance

What makes S.M.E.I. valuable to EPCs

• We reduce project risk through precise execution
• We keep EPCs’ engineering intact — no scope conflict
• We deliver high-quality EC&I and construction work on accelerated timelines
• We align with EPC procedures during commissioning
• We hold ISO 9001, and 45001 certifications
• We understand industrial sites and conditions

S.M.E.I. is the execution partner EPCs trust to turn engineered designs into built, energised, grid-ready infrastructure.

Conclusion: A Clear Division of Roles, A Strong Partnership

Commercial solar tracker installations succeed when EPCs, developers, and construction partners work in full alignment.

EPCs lead engineering, grid studies, and project control.
S.M.E.I. executes the construction, installation, EC&I integration, and AC tie-in that bring the project to life.

For EPCs seeking a reliable, ISO-certified, multi-discipline execution partner across Africa, S.M.E.I. brings the proven capability needed to take solar tracker projects from ground to grid, efficiently, safely, and with uncompromising quality.