Aerial view of bulk excavation and earthmoving
Build Division / Renewable Energy Civils

Renewable Energy
Civils.

Balance-of-plant civil works for generation projects: platforms, foundations, hardstands, access roads and site water.

The Discipline

Balance Of Plant
Is Civils.

On a renewable energy project the generation equipment comes from the technology supplier. What is left is a civil engineering contract: platform earthworks over a large footprint, several hundred foundations built to tight tolerance, access roads that carry abnormal loads, cable trenching, hardstands and the water infrastructure that keeps the site operating.

That is the daily business of our civils and water teams. Mass earthworks, heavy foundations, haul and access roads, hardstands, trenching and reservoirs are what Unicon has been building since 1991, and they are the same operations a balance-of-plant package is assembled from.

Scope Of Works

The Civil Scope On A Generation Site.

This is the balance-of-plant scope we are equipped and graded to carry out.

Site Preparation & Earthworks

  • Vegetation clearing, topsoil stripping and stockpiling
  • Bulk earthworks, cut-to-fill and platform grading over large footprints
  • Terracing, benching and slope stabilisation
  • Geotechnical verification and founding improvement
  • Erosion protection, contour works and stormwater management
  • Site rehabilitation and reinstatement

Foundations & Structures

  • Repetitive pad, pile-cap and ballast foundations to tight tolerance
  • Tracker and module support foundations, driven or cast
  • Inverter, transformer and battery container plinths
  • Substation structures, cable basements and earthing provision
  • Control room, workshop, store and gatehouse buildings
  • Fencing foundations, gates and perimeter works

Access & Hardstands

  • Site access roads designed for abnormal and crane loads
  • Internal service roads, turning circles and passing bays
  • Crane pads and assembly hardstands
  • Laydown areas, storage yards and construction platforms
  • Culverts, drifts, drainage and road furniture
  • Traffic accommodation and route condition surveys

Cabling & Reticulation Civils

  • Cable trenching, bedding, backfill and warning tape
  • Ducts, sleeves, draw pits and cable troughs
  • Road and watercourse crossings for cabling
  • Earthing trenches and earth mat installation
  • Marker posts, route recording and as-built survey
  • Coordination with the electrical installer's programme

Site Water & Services

  • Raw and potable water storage tanks and reservoirs
  • Boreholes, abstraction, pumping and reticulation
  • Module wash-down water supply and recovery
  • Fire water storage and pump house structures
  • Sanitation, package treatment and effluent handling
  • Dust suppression supply during construction and operation

Delivery & Compliance

  • Environmental authorisation conditions and ECO coordination
  • Local content, local labour and local enterprise obligations
  • Community liaison and local subcontractor development
  • Health and safety systems to the client's and the Act's requirements
  • Quality records, survey verification and as-built documentation
  • Interface management with the technology supplier and EPC

Track Record

The Civil Record Behind This.

Balance-of-plant work is earthworks, foundations, access roads and site water. These are comparable civil contracts from our project database, drawn from the heavy civils and earthworks side of the portfolio.

9

Projects delivered

2003–2015

Years active

3

Client organisations

24 months

Longest contract

Year Project Client Value
2015 Ntwasahlobo Bridge P-127 KZN Department Of Transport R5–20M
2014 Mkomazi River Bridge KZN Department Of Transport R5–20M
2014 Makhathini Drainage Canal near Jozini Ezemvelo KZN Wildlife R20–50M
2013 Mlazi Pedestrian Bridge KZN Department Of Transport Under R5M
2013 Inanda Road Services Relocation KZN Department Of Transport Under R5M
2013 Inanda Road Bridge Widening KZN Department Of Transport R5–20M
2013 Nzinga River Bridge P-127 KZN Department Of Transport R5–20M
2004 Kokstad RTI lot Bernard Keal Under R5M
2003 uMzimkhulu Bridge KZN Department Of Transport Under R5M

Who We Build For

KZN Department Of Transport ×7Ezemvelo KZN Wildlife ×1Bernard Keal ×1
Excavator shaping a canal through red soil

Method

How A Balance-Of-Plant Package Runs.

01

Geotechnical reality first

Foundation quantities on a generation site are driven by ground conditions across a large footprint. The geotechnical picture is verified before the foundation method is fixed.

02

Set up for repetition

Several hundred near-identical foundations is a production problem. The gain is in the jig, the sequence and the survey control, not in working faster.

03

Access before volume

Access roads and hardstands are built early, to carry the heaviest delivery on the project, because everything else depends on them.

04

Interface with the technology supplier

Tolerances, setting-out and handover of foundations are agreed with the equipment supplier in writing before the first pour.

05

Local content done properly

Local labour and enterprise obligations are met with real packages and real support on site, the way we already work on municipal contracts.

Capacity

Plant & Teams.

We self-perform the work that carries the risk and subcontract the rest to an approved vendor list. What follows is the plant and capability this discipline draws on.

  • Excavators, dozers, graders, rollers and articulated dump trucks
  • Concrete placing plant, batching arrangements and curing equipment
  • Trenching plant and pipe-laying equipment
  • Mobile cranes and telehandlers
  • Survey and machine-control setting-out for repetitive foundations
  • Water tankers and dust suppression equipment
Supply to our sites

Contracting

How We Are Appointed.

Counts below are across the whole portfolio and come from the same database as the project record above.

Appointment Type

  • Full Contract75
  • Construction Management12
  • Turnkey4
  • Architechural Design1

Contract Form

  • GCC62
  • JBCC Series 6.215
  • JBCC Series 54
  • JBCC Series 33

CIDB 7CE and 7GB. B-BBEE Level 2 contributor. Work is measured and constructed to the SANS 1200 and SANS 2001 series, with building work to SANS 10400.

Alongside This

Related Capability.

Assembling A Balance-Of-Plant Package?

Send us the scope, the geotechnical report and the site constraints, and we will price the civil package.