Rooftop array at scale
Commercial roof space converted into a bankable energy asset.
Cornerstone Energy Solutions - C&I Solar EPC
Engineering-led solar for high-load operations.
Bankable commercial and industrial solar systems from 200kW to multi-megawatt, designed, built and maintained by CES across South Africa.
Strategic Energy Risk
Your electricity cost is now a strategic risk.
Tariff increases, grid constraints and supply uncertainty are eroding margins for energy-intensive operations. Solar only protects you if it is engineered to your load profile, financed on sound numbers and maintained for 20+ years.
CES leads with engineering and the financial case, not a panel count.
Visual Proof
Real project evidence beats brochure promises.
Commercial buyers need to see scale, workmanship and site capability before they trust a solar EPC partner.
Electrical infrastructure
Inverter rooms, cable routing and balance-of-system equipment built for dependable operation.
Installation teams
Trained teams working safely across commercial rooftop solar installations.
Why CES
Solar engineered for asset performance, not sales volume.
Engineered, not just installed
In-house design sized to your actual load profile and tariff structure.
Built for the numbers
Every proposal carries yield modelling, ROI and payback before you commit capital.
Maintained for the long run
Proactive O&M with online monitoring for sustained generation.
How We Work
A disciplined EPC process from feasibility to long-term performance.
Feasibility
Energy audit, yield and savings model.
Engineering
System design and bankable specification.
Build
Procurement, installation and compliance.
O&M
Monitoring and maintenance.
Who We Power
High-load facilities where uptime and cost control matter.
Factories and warehouses
Offset high daytime loads and improve operating cost predictability.
Cold storage
Support refrigeration-heavy sites with modelled solar generation.
Agriculture and packhouses
Reduce seasonal energy costs across processing and packing operations.
Hospitals
Structured delivery for critical facilities and long-term maintenance.
Shopping centres
Use rooftops and parking assets to lower common-area electricity demand.
Carports and petrol stations
Pair customer-facing infrastructure with practical energy generation.
Find out what solar saves your operation.
Share your load profile and site details. CES will assess the technical and financial case.
Request a Feasibility Assessment