Commercial & Industrial Solar PV & Battery Energy Storage Systems.
Engineered Energy Infrastructure for South African Enterprise
We engineer and deploy fully NRS 097-2-1 compliant commercial and industrial solar PV and battery energy storage systems (BESS). Our solutions are built specifically to mitigate grid risk, eliminate demand charges, and deliver quantifiable financial performance for high-demand operations.
From 60kW embedded generation arrays to multi-megawatt (5 MW+) hybrid microgrids, we bridge heavy engineering with regulatory approval.
A MESSAGE FROM THE CO-FOUNDERS
South African business owners are facing one of the most complicated energy crises in our history.
We built our company around making the difficult decisions easy.
Alan Roxton Wiggill & Callum Roxton Wiggill – Co-Founders & Joint CEO’s – Power JunXion
Engineered Energy Infrastructure, Not Just Solar Installations
Commercial and industrial facilities feature highly complex load profiles, variable demand peaks, and strict compliance barriers. Our engineering-led methodology eliminates execution risk by integrating deep energy modelling and financial forecasting from day one.
Every system is designed using:
Load Profile Analysis: Granular half-hourly utility data evaluation.
Tariff & Demand Charge Modelling: Accurate NRS 048 tariff class simulations.
Production Simulation: Precision yield forecasting via PVSyst software.
DC/AC Ratio Optimisation: Strategic oversizing (1.1–1.35 typical C&I) to maximise low-light yield.
Grid Impact Studies: Comprehensive load flow and transformer capacity assessments.
Commercial Solar PV Systems (60kW – 5MW)
Engineered for manufacturing plants, logistics hubs, mining operations, cold storage facilities, and agricultural processing sites.
Module Technology: Tier-1 mono PERC / TOPCon bifacial modules (540W–700W+ / 21%–23% efficiency).
Inverter Architecture: Multi-MPPT string inverter topology with 1100V / 1500V DC system design.
Grid Integration: NRS 097-2-1 compliant embedded generation systems featuring active anti-islanding protection and reverse power flow mitigation.
Telemetry: SCADA-integrated monitoring platforms for real-time diagnostics and revenue-grade metering.
Battery Energy Storage Systems (60kWh – 10MWh)
Scalable, containerised storage solutions engineered for demand optimisation, power quality, and operational resilience.
Cell Chemistry: Lithium Iron Phosphate (LFP) chemistry with 6000+ cycle life at 80% DoD.
C-Rate Capabilities: High-performance 0.5C to 1C continuous discharge capability.
Inverter Topology: Advanced hybrid systems running alternating grid-following and grid-forming microgrid modes.
Power Quality: Active power factor correction and energy frequency output regulation to protect sensitive factory machinery.
Operational Logic: Automated peak shaving, time-of-use (TOU) tariff arbitrage, and seamless generator auto-synchronisation.
Enclosures: Heavy-duty, thermal-managed IP54/IP65 containerised architecture.
Hybrid Solar + Battery Microgrid Architecture
We design fully integrated, resilient systems that treat energy as a controllable asset rather than an unpredictable operating expense.
AC-Coupled & DC-Coupled Storage: Optimised system architecture based on existing facility infrastructure.
Load Segmentation: Critical load distribution board (DB) segregation to isolate mission-critical machinery.
Least-Cost Control: Intelligent Energy Management Systems (EMS) that dynamically balance solar yield, battery capacity, and diesel generation at the lowest possible levelized cost.
Financial Engineering & Performance Metrics
Financial Modelling & Investment Performance
Internal Rate of Return (IRR): 18% – 35% dynamic yield depending on tariff class
Payback Period: 3 – 5 Years average capital amortisation
Demand Charge Reduction: Up to 40% reduction in kVA utility charges
Asset Lifespan: 25+ Year design life with built-in degradation modelling (0.5%–0.8% p.a.)
Flexible Capital Structuring:
CAPEX-Funded: Maximized balance-sheet optimization and direct tax depreciation incentives.
Power Purchase Agreements (PPA): Off-balance-sheet energy procurement with zero upfront capital expenditure.
Energy-as-a-Service (EaaS): Fully managed, maintenance-inclusive operational expense models.
ESG Reporting: Verified Scope 2 emissions reductions for corporate sustainability compliance.
Preliminary Energy Modelling: Quick Calc
Instant System Sizing & Preliminary Yield Forecasting
Before deploying formal on-site hardware logging, use our data-driven Quick Calc asset to establish a baseline technical profile for your commercial facility. Built explicitly for South African municipal and Eskom tariff structures, the calculator processes your consumption characteristics to output an engineering-led overview of your required energy footprint.
Core Technical Metrics Calculated Instantly
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Grid-Tied Solar PV Capacity: Estimates your required generation scale (100kW – 5MW+) based on base-load profile parameters.
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BESS Scaling Parameters: Determines required continuous discharge capabilities (0.5C–1C) and battery energy storage capacity (100kWh – 10MWh).
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Financial Return Forecasts: Generates preliminary project performance data, targeting an expected 18%–35% IRR and a 3–5 year simple payback period depending on your tariff class.
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Grid Compliance Pre-Sizing: Maps alignment configurations alongside standard South African NRS 097-2-1 compliance frameworks.
Data Parameters
To run a reliable simulation and bypass generic estimations, ensure you have the following operational metrics ready to input into the tool:
Monthly Bill (ZAR)
Monthly Usage (kWh)
Tariff Rate (ZAR/kWh)
Target Energy Displacement (%)
Day vs. Night Load Distribution
Peak Demand Profile (kVA)
Our Most Recent Mega Watt Project
- Featuring a 480kWp grid-tied system utilizing 864 high-performance solar panels, designed to maximize energy production and seamlessly integrate with the grid.
Our Solutions
Empowering Your Energy Future
Empower your journey towards sustainability with our comprehensive solutions. Our Renewable Energy Consulting services guide you through the transition to cleaner energy, offering expert advice tailored to your unique needs. Explore our flexible Financing Options designed to make the shift to renewable energy accessible and cost-effective. With our Energy Monitoring and Management solutions, take control of your energy consumption, optimize efficiency, and make informed decisions for a greener and more sustainable future. Together, we pave the way for a cleaner, more efficient, and financially viable energy landscape.
About Us
Our nimble team ensures quick turn-around times and exceptional results
Years of Experience: As a family business, we take immense pride in the years of experience we have accumulated in business management and the renewable energy industry. Our journey has been filled with successes, challenges, and valuable learning experiences, all of which have contributed to shaping Power JunXion into the company it is today. With each project we undertake, we continue to refine our skills, stay up-to-date with the latest advancements, and strive for excellence in every aspect of our service.