What we keep being called about
Power costs are 25–35% of operating cost for ZW miners (CoMZ benchmark). Load-shedding events idle mills at USD 30 k+/hour. Existing arc-flash documentation predates current fault levels.
Each sector has its own load profile, its own regulatory exposure, its own economics. The headline service is often the same — an audit, an ETAP study, a captive-solar feasibility — but the inputs and the deliverable language differ. This is where we adjust.
Operating in this sector: Zimplats · Mimosa · Caledonia · Bindura Nickel · Trojan · Karo Platinum · Bikita Minerals · Unki.
Power costs are 25–35% of operating cost for ZW miners (CoMZ benchmark). Load-shedding events idle mills at USD 30 k+/hour. Existing arc-flash documentation predates current fault levels.
Captive solar + BESS displacing diesel back-up. Protection re-coordination against new transformer ratings. Stamped arc-flash to IEEE 1584-2018 + ZWS labels.
11 kV / 33 kV switchroom arc-flash & PPE re-grade
Captive PV feasibility (5–30 MWp) with BESS integration
Load-flow + short-circuit re-validation post-mill expansion
Protection coordination + relay setting study
Energy audit + IPMVP M&V on milling and pumping circuits
Operating in this sector: Delta Beverages · National Foods · Dairibord · PPC Cement · Cottco · Halsteds · Willowton · Verify Engineering.
Repeated VFD and rectifier failures inside warranty point to harmonic and voltage-quality issues on shared feeders. NEEP 2025 audit obligations now mandatory for intensive users. CBAM exposure looming for steel and cement exporters.
Power-quality forensics that resolve supplier disputes. Harmonic filter sizing. NEEP-compliant audits. CBAM emissions baseline establishment.
Power quality investigation (IEC 61000-4-30 / IEEE 519)
Investment-grade NEEP 2025 audit
Harmonic filter sizing & placement
CBAM baseline emissions methodology
Captive solar feasibility (200 kW–5 MW)
Operating in this sector: Tongaat Hulett Chiredzi · Hippo Valley Estates · Tanganda · Dimbangombe · cold-storage operators.
Cold-chain operators carry 60–80% refrigeration load. Diesel back-up cost during load-shedding now exceeds primary supply cost. Sugar and citrus exporters face EU CBAM-adjacent traceability requirements.
Refrigeration efficiency audits with sub-metered M&V. Solar + thermal storage feasibility for processing plants. ISO 50001 readiness for export accreditation.
Refrigeration & HVAC sub-metered audit
Captive solar feasibility with cold-storage anchor load
ISO 50001 readiness assessment
Power factor & reactive power optimisation
Boiler & thermal-systems energy audit
Operating in this sector: ZESA Holdings · ZETDC · Verify Engineering · IPPs in ZERA's 1,365 MW pipeline.
ZERA has licensed 174 IPPs of which 68 are operational. The 2026 own-consumption regulations clarified the registration path. DFI lenders demand bankable feasibility packs that meet international standards.
Grid-code compliance studies that pass ZETDC review first time. Bankable feasibility packs that survive AfDB / IDC / World Bank due-diligence. Wheeling and PPA architecture.
Grid-code compliance study (2024 Grid Code)
Bankable feasibility study (P50/P90, LCOE, DSCR)
PPA & wheeling agreement technical schedules
Connection study & reactive-capability simulation
Owner's engineer through EPC commissioning
Operating in this sector: Sam Levy's Village · Meikles Hotel · Parirenyatwa Hospital · CBZ Bank · Redan Petroleum · NetOne · Spar.
Branch networks accumulate USD 200 k+/yr in diesel for back-up generation. Hospitals carry the heaviest reputational cost from outages. Retail centres need defensible energy data for tenant rebilling.
Branch-portfolio audits with retrofit prioritisation. Healthcare reliability-first design. Tenant sub-metering with auditable allocation.
Multi-site portfolio walkthrough audit
Hospital reliability & critical-load study
Tenant sub-metering & rebilling system design
Lighting + HVAC retrofit feasibility
Roof-mounted PV + structural pre-assessment
Operating in this sector: DataWorld · NetOne Cellular · TelOne · Econet (towers).
Always-on critical infrastructure. PUE matters but uptime matters more. Solar + BESS becoming economic for tower sites in remote locations.
Critical-power topology review. PUE benchmarking & optimisation. Off-grid solar+BESS site design for towers.
Critical-power topology audit (N+1, 2N)
UPS & generator coordination study
PUE benchmarking & optimisation
Tower-site solar+BESS feasibility
Cooling system efficiency audit
A 30-minute scoping call costs you nothing. We tell you whether we're the right consultant for the work — and if not, who else to call.