Repair and reinstatement of clearvu and vibracrete security fences at riversdale c4 solar plant

Sentech SOC Ltd, a state-owned broadcasting signal distributor, requires urgent repair of the perimeter security fence at its Riversdale C4 Solar Plant, damaged by severe weather. The contractor must remove damaged sections, replace structural components, reinstate the fence using reusable materials, install new supports, reinstate the electric fence, and commission the security system. The contractor provides all labour, supervision, plant, equipment, transport, materials, and consumables.

Site briefing: 11 November 2026 at 12:00. Meet at Shell Garage N2 Parking (https://maps.app.goo.gl/8YneiFHj2Ba3Jpqs8) between 12:00 and 12:10, then proceed to site (4x4 recommended). Briefing commences at 12:40 at the Riversdale Sentech Site. Contact: 066 259 5397. Attendance is compulsory.

Closing: 25 November 2026 at 12h00.

Validity period: 90 days.

Quotations:

• Name: Zanele Zulu
• Role: Administrator
• Telephone: 011 471 4000
• Email: [email protected]

Site briefing contact:

• Telephone: 066 259 5397

Submission email: [email protected]

Site location: Riversdale C4 Solar Plant, Southern Region, Riversdale, Western Cape.

Quotations must be submitted via email.

• Submission email: [email protected]
• Closing date: 25 November 2026, closing time: 12h00.
• Quotation must be on company letterhead, fully completed, and signed in black ink.
• Bidders must be registered on the Sentech Supplier Database and be tax compliant.
• Quotations received after the closing time will not be accepted.

Returnable documents:

• Form of Offer and Acceptance: signed to bind the bidder to the offer and accept the conditions of the RFQ.
• Pricing schedule (bill of quantities): rates to be quoted as per the schedule.
• Valid COIDA Letter of Good Standing.
• Valid CIDB certificate (Grade 1 SQ or above).
• Valid B-BBEE certificate (for preference points).
• Valid medical certificates and safety documentation where applicable.

Disqualification risks:

• Failure to meet any administrative responsiveness criteria.
• Quotation not on company letterhead, unsigned, or not in black ink.
• Missing mandatory documents.

Evaluation is conducted in three stages:

1. Stage 1 – Administrative Responsiveness: all administrative criteria must be met.
2. Stage 2 – Functional Evaluation: bidders that comply with mandatory criteria are scored on functionality. A minimum qualifying threshold applies, but the exact score is not stated in the document.
3. Stage 3 – Price and Preference: lowest acceptable price scores maximum price points; preference points are added under the 80/20 system.

Mandatory eligibility criteria (failure disqualifies):

• Valid COIDA Letter of Good Standing from the Department of Labour/FEM.
• Valid CIDB certificate: Grade 1 SQ or above.

Preference points (total 20) under 80/20 system:

• Black ownership 51% or more: 8 points
• Black ownership 25.1% – 50%: 5 points
• Black ownership 5% – 25%: 3 points
• Black ownership below 5%: 0 points
• Women ownership 51% or more: 10 points
• Women ownership 25.1% – 50%: 4 points
• Women ownership 5% – 25%: 2 points
• Women ownership below 5%: 0 points
• Disability (with doctor's note, Department of Labour confirmation, or BEE certificate): 2 points

Price calculation: Ps = 80 × (1 - (Pt - Pmin) / Pmin), where Ps = points for price, Pt = bid price, Pmin = lowest acceptable bid price. Highest total points recommended for award.

Scope: Repair and reinstate the existing ClearVu security fence and Vibracrete fence at the Riversdale C4 Solar Plant, including the electric fence.

Preliminary and general:

• Attend compulsory site briefing.
• Verify dimensions and quantities; inspect existing damage.
• Protect existing solar plant infrastructure.
• Maintain site security during construction.
• Remove debris and reinstate disturbed ground.
• Submit weekly progress reports with photographs.

ClearVu fence works:

• Remove approximately 55 damaged ClearVu fence panels and posts.
• Remove damaged foundations where required.
• Retain reusable panels, underdigs, and fixings.
• Supply and install 18 new ClearVu fence posts (3300 mm long) with base plates, galvanised nuts, bolts, washers, protective caps; install plumb, aligned, founded in concrete.
• Reinstall existing reusable panels and underdigs; align, level, bolt, adjust, and tighten.
• Supply and install 14 heavy-duty strut posts with concrete foundations, bracing, connection brackets, and fittings.

Electric fence:

• Supply and install approximately 110 m of electric fence with galvanised brackets, insulators, high-tensile wires, tensioners, connectors, warning signs, earth spikes, lightning protection where applicable.
• Test and commission: verify voltage, earthing, energizer; demonstrate operation; repair faults; submit commissioning certificate.

Vibracrete fence:

• Demolish and remove damaged Vibracrete sections, posts, and foundations.
• Dispose of waste at approved landfill.
• Supply and install replacement Vibracrete posts, panels, concrete foundations; align, backfill, finish to match existing.

Technical specifications:

• ClearVu fence: existing panels reused where suitable; new posts 3300 mm; hot-dip galvanised bolts and fixings; concrete foundations minimum 25 MPa unless otherwise instructed.
• Strut posts: heavy-duty galvanised steel with bracing, hot-dip galvanised finish.
• Electric fence: approximately 110 m, high-tensile wire, galvanised brackets, fully operational after commissioning.
• Vibracrete: standard reinforced panels, reinforced concrete posts, concrete foundations.

Quality assurance: provide material compliance certificates, electric fence compliance documentation, inspection records, manufacturer warranties, final inspection before handover.

Location: Riversdale C4 Solar Plant.

Site access: gravel roads; some steep, tight turns; 4x4 vehicles recommended; site is fenced and restricted.

Quality assurance inspections will be carried out at key dates and milestones established at the site handover meeting. The Infrastructure Services Manager or a Sentech trade-tested rigger conducts inspections before, during, and upon completion. QA inspections at milestones, including before applying each coat of paint and on completion of each section. The contractor must submit a detailed execution schedule in bar chart format, including site name, activity description, duration, and key milestone dates. Photos must be taken before, during, and after as part of progress reporting.

The bill of quantities is provided with two sections: Preliminaries (establishment, health & safety file) and ClearVu fence repairs (removal of 55 panels/posts, supply of 18 posts, installation of 55 panels, supply/install 14 strut posts, supply/install 110 m electric fence, testing/commissioning, removal and replacement of Vibracrete fence). Totals to include contingencies at 15%, VAT at 15%, and total inclusive of VAT. Prices in ZAR, firm; no adjustment without written approval.

Pricing must be submitted in South African Rands (ZAR), inclusive of VAT as per the bill of quantities.

Bill of quantities (BOQ) items:

• Section 1 – Preliminaries: establishment, health & safety file (each sum, qty 1).
• Section 2 – ClearVu fence repairs:
• Remove damaged ClearVu fence panels and posts: 55 No.
• Supply 3300 mm ClearVu posts with nuts, bolts, washers: 18 No.
• Install new posts using existing panels and underdigs: 55 No.
• Supply and install heavy-duty strut posts: 14 No.
• Supply and install electric fence: 110 m.
• Test and commission electric fence: 1 sum.
• Remove damaged Vibracrete fence: 1 sum.
• Supply and install replacement Vibracrete fence: 1 sum.

Totals to be calculated: Section 1 + Section 2, exclusive of VAT; contingencies at 15%; totals including contingencies; VAT at 15%; total including VAT.

Prices are firm; no adjustments unless written approval obtained. Currency fluctuation risk borne by bidder. Sentech may negotiate prices and reserves right to cancel if market-related prices not agreed.

Payment terms not specified beyond the offer/acceptance process.

Mandatory eligibility (failure disqualifies):

• Valid COIDA Letter of Good Standing from Department of Labour/FEM.
• Valid CIDB certificate: Grade 1 SQ or above.

Other compliance:

• Registration on Sentech Supplier Database.
• Valid tax compliance (SARS TCS) – required.
• Valid B-BBEE certificate to claim preference points.
• Health & Safety file must be approved before commencement of work.
• Public liability insurance required.
• COID/FEM registration for injury on duty.
• Medical certificates for assigned personnel.

Other requirements (documented in the tender):

• No National Treasury standard forms (SBD/MBD) were identified, but the Form of Offer and Acceptance is required.

Health & Safety requirements:

• Compile a health and safety file in line with Sentech requirements and submit to Sentech OHS Specialist within 7 days after issue of Purchase Order/Safety File Specification.
• Valid mast climbing certificate for each employee assigned to the project.
• Medical fitness certificates issued by an Occupational Medical Practitioner for all assigned employees.
• Detailed safe working methodology.
• Valid construction/project public liability insurance.
• Health and safety compliance undertaking by CEO/Managing Director.
• COID/FEM registration for injury on duty.
• The approved Health & Safety File, risk assessments, method statements, proof of competency, medical certificates, public liability insurance, and COID registration must be submitted before work begins.
• No work may commence until written approval from Sentech.
• Constraints: inclement weather may cause delays, but extension of time is granted without monetary compensation.

Environmental requirements include careful demolition and removal of damaged Vibracrete fence sections, disposal of all waste at an approved landfill, and reinstatement of disturbed ground. The contractor must dispose of damaged material at approved disposal facilities.

The Works shall be executed in accordance with GCC 2025 (3rd Edition), OHSA, Construction Regulations, applicable SANS standards, manufacturer specifications, Sentech technical specifications, and Employer's Instructions.

• Defects Liability Period: 12 months from Practical Completion.
• Warranties: 12-month workmanship warranty; manufacturer warranties on all new fence posts, electric fence components, bolts, brackets, and fittings.
• Project Duration: completion within 3 weeks after approval of the Health & Safety File and site handover.
• The contract is subject to the Form of Offer and Acceptance; failure to provide required securities, guarantees, or insurance constitutes repudiation.

The tender is evaluated in three stages: administrative responsiveness, functional evaluation (with minimum threshold not stated), and price/preference under the 80/20 system. Mandatory criteria: valid COIDA Letter of Good Standing and valid CIDB certificate (Grade 1 SQ or above). Preference points awarded for black ownership, women ownership, and disability as per the standard table. Price points calculated using the 80/20 formula.