750kW · Gauteng
750kW Solar System for Mining Administrative Compounds in City Deep
Cut Eskom exposure with engineered three-phase solar PV and battery storage for mining administrative compounds in City Deep, Johannesburg. Typical four-year payback, Section 12B tax deduction in year one, and tariff mitigation against annual increases from City Power.
- Typical payback
- 4.1 yrs
- Yield / kWp
- 1 700 kWh
- Section 12B
- 100% yr 1
- Response
- 48 hrs
SAPVIA PV GreenCard practices · NRS 097-2-1 · SANS 10142 · Section 12B ready
750kW engineered for Mining Administrative Compounds in City Deep
High Eskom tariffs and power instability directly affect mining administrative compounds operations across City Deep, Johannesburg. Reyds provides engineered, three-phase commercial solar PV and battery storage systems tailored for daytime load shifting and peak demand clipping. Sites in City Deep sit on the M2 Heidelberg Road freight corridor, where remote sites on constrained distribution networks make generation on site the lowest-risk hedge available.
Fully islanded generation for sites with weak, expensive or unavailable municipal supply, with generator fallback. Mining Administrative Compounds carry a load profile dominated by offices, change houses, workshops and security, which is exactly where solar generation overlaps hardest with your billing peaks.
Pair your cooling, refrigeration and commercial aircon systems directly with solar PV generation to cut high peak-demand electrical charges. Thermal pre-cooling during peak irradiance hours shifts chiller demand off the City Power account entirely.
Local grid and industrial context
- Distribution authority: City Power, feeder capacity confirmed before design freeze
- Industrial corridor: M2 Heidelberg Road freight corridor
- City Deep Container Terminal
- Joburg Market
- HVAC and refrigeration load coupling assessed on every mining administrative compound audit
Indicative 750kW build for a mining administrative compound in City Deep
- System capacity
- 750 kWp (750kW)
- Modules
- 1350 x tier-1 Bloomberg-rated monocrystalline
- Roof / yard area
- ~4 200 m2
- Inverter platform
- 3 x 250kW central inverters
- Storage option
- 750kWh containerised LFP
- Annual generation
- ~1 275 000 kWh
| Component | Engineered specification | Standard |
|---|---|---|
| Hybrid / grid-tied inverters | Sungevity, Atess, Deye and Huawei three-phase 400V units, 30kW to 250kW blocks | NRS 097-2-1, IEC 62109 |
| PV modules | Tier-1 Bloomberg-rated monocrystalline 555-620Wp, 30-year linear performance warranty | IEC 61215, IEC 61730 |
| Battery storage | Lithium iron phosphate (LFP) 51.2V cabinets and 233-5 000kWh containerised racks, 6 000+ cycles at 90% DoD | IEC 62619, UN38.3 |
| Mounting structures | Aluminium rail on IBR / corrugated / standing seam; ballasted or bolted on concrete; galvanised steel ground frames | SANS 10160 wind loading |
| Structural roof load | 12-18 kg/m2 additional dead load flush-mount, 22-28 kg/m2 tilted arrays, verified per truss design | SANS 10162 sign-off |
| Protection and metering | Type 2 SPD, DC isolators, AC changeover, CT metering with remote monitoring portal | SANS 10142-1 |
What is included in City Deep
- Independence from constrained feeders
- Diesel displacement of 60-90%
- SCADA-monitored dispatch logic
- SSEG registration and NRS 097-2-1 documentation
- Remote monitoring portal with performance reporting
- Section 12B asset register for your auditors
Questions from City Deep operators
How long does a 750kW installation in City Deep take?
A 750kW plant on a mining administrative compound in City Deep typically takes 4 to 10 weeks from signed order, including structural assessment, City Power SSEG paperwork and commissioning.
Do we need approval from City Power?
Yes. Any grid-connected embedded generation in City Deep, Johannesburg must be registered as SSEG. Reyds handles the full application, professional engineer sign-off and NRS 097-2-1 compliance documentation.
Can the system run our aircon and refrigeration during load shedding?
With hybrid inverters and LFP storage, cooling, refrigeration and commercial aircon can be carried through outages while also clipping peak-demand charges on your mining administrative compound account.
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