100kW · Gauteng
100kW Solar System for Auto Dealerships in Modderfontein
Cut Eskom exposure with engineered three-phase solar PV and battery storage for auto dealerships in Modderfontein, Johannesburg. Typical four-year payback, Section 12B tax deduction in year one, and tariff mitigation against annual increases from Eskom.
- Typical payback
- 3.6 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
100kW engineered for Auto Dealerships in Modderfontein
High Eskom tariffs and power instability directly affect auto dealerships operations across Modderfontein, Johannesburg. Reyds provides engineered, three-phase commercial solar PV and battery storage systems tailored for daytime load shifting and peak demand clipping. Sites in Modderfontein sit on the N3 corridor, where showroom uptime and EV charging demand make generation on site the lowest-risk hedge available.
Backup engineering that keeps production lines, cold chain and POS systems running through Stage 6 schedules. Auto Dealerships carry a load profile dominated by showroom lighting, workshop compressors and ev chargers, 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 Eskom account entirely.
Local grid and industrial context
- Distribution authority: Eskom, feeder capacity confirmed before design freeze
- Industrial corridor: N3 corridor
- Modderfontein industrial heritage precinct
- HVAC and refrigeration load coupling assessed on every auto dealership audit
Indicative 100kW build for a auto dealership in Modderfontein
- System capacity
- 100 kWp (100kW)
- Modules
- 180 x tier-1 Bloomberg-rated monocrystalline
- Roof / yard area
- ~560 m2
- Inverter platform
- 2 x Huawei SUN2000 50KTL
- Storage option
- 100-215kWh LFP
- Annual generation
- ~170 000 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 Modderfontein
- Prioritised essential-load distribution boards
- Automatic transfer without operator intervention
- Runtime modelling per shift pattern
- SSEG registration and NRS 097-2-1 documentation
- Remote monitoring portal with performance reporting
- Section 12B asset register for your auditors
Questions from Modderfontein operators
How long does a 100kW installation in Modderfontein take?
A 100kW plant on a auto dealership in Modderfontein typically takes 4 to 10 weeks from signed order, including structural assessment, Eskom SSEG paperwork and commissioning.
Do we need approval from Eskom?
Yes. Any grid-connected embedded generation in Modderfontein, 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 auto dealership account.
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