Company Profile · Project Delivery WBHO Is Where South Africa’s Battery Storage Plans Meet Concrete, Steel, and Schedule Risk The Johannesburg construction group is not selling cells or software. It is doing something just as important for the storage market: helping large hybrid renewable projects become real assets. By CurrentCells Staff | 9 min read 1970 Founded roots JSE Listed construction group 660 MWh Naos-1 BESS scale 300 MW Naos-1 solar plant WBHO belongs in the CurrentCells company index for a reason that can be easy to miss in battery coverage. Storage markets do not scale on cells alone. They scale when projects can be permitted, financed, engineered, built, commissioned, and maintained without collapsing under site risk. WBHO’s role is that infrastructure layer. Wilson Bayly Holmes-Ovcon, commonly known as WBHO, is one of Southern Africa’s largest construction groups. Its public profile is built around building construction, civil engineering, roads, earthworks, infrastructure, and project delivery across South Africa and other markets. That may sound far away from battery chemistry, but grid batteries quickly become civil-infrastructure projects once they leave a supplier brochure. A utility-scale battery site needs land preparation, foundations, access roads, trenching, drainage, grid works, safety planning, logistics, commissioning coordination, and disciplined project controls. In South Africa, it also needs local execution knowledge in a market shaped by grid constraints, wheeling arrangements, private offtakers, and an urgent need for more reliable clean power. WBHO sits in that practical delivery lane. Naos-1 Puts WBHO Into the Storage Story The Naos-1 hybrid project is the clearest reason WBHO matters to storage readers now. Envision Energy announced in 2026 that it would supply a 660 MWh battery energy storage system for Naos-1, a 300 MW solar-plus-storage project near Viljoenskroon in South Africa’s Free State province. The project is being developed by SOLA Group, with WBHO tied to construction delivery. Naos-1 is significant because it is not just a utility tender or a demonstration project. It is designed to deliver reliable, dispatchable renewable power to major private businesses through wheeling across the national grid. That structure is important in South Africa, where large commercial and industrial customers have strong reasons to seek cleaner electricity with better control over reliability and cost exposure. For WBHO, the project places conventional construction discipline inside a next-generation power product. Solar generation, a large BESS block, transmission and distribution interfaces, site works, and customer-backed contracts all have to come together. The battery supplier may get the headline, but the construction partner is one of the parties that determines whether the project reaches operation with its budget, quality, and timeline intact. CurrentCells read WBHO is a storage enabler, not a storage OEM. Its value is making large hybrid assets buildable in a market where execution risk can matter as much as cell pricing. Why EPC Capacity Becomes a Battery Bottleneck Battery procurement often starts with a technology question: which chemistry, whose container, what warranty, what fire system, what software. But as projects multiply, the limiting factor often shifts toward delivery capacity. Developers need contractors that can execute repeatably, coordinate suppliers, manage subcontractors, control safety, and navigate local rules. That is where groups like WBHO become strategic. South Africa’s power transition makes this especially visible. The country needs new renewable generation, more flexible capacity, and grid investment. Private-power developers can bring capital and customers, but they still need trusted partners to build. Storage adds extra layers: high-voltage integration, fire-safety design, container logistics, thermal management, commissioning procedures, and long-term service boundaries between the battery supplier, developer, and site contractor. WBHO’s advantage is that it enters storage from the infrastructure side. Its experience in construction and civil engineering can help reduce the mundane project risks that quietly hurt returns: late site readiness, rework, poor sequencing, access constraints, safety incidents, and weak interface management. Those details rarely make investor decks, but they matter to every lender and project owner. Buyer Problem Hybrid renewable projects need local contractors that can turn designs and supply contracts into operating assets. WBHO Answer Construction, civil engineering, project controls, and South African infrastructure-delivery experience. Main Risk Battery-specific interfaces, grid delays, contractor margin pressure, and coordination across global equipment suppliers. The Competitive Position WBHO does not compete with CATL, BYD, Sungrow, Envision, Tesla Energy, Fluence, or Wartsila on storage products. It competes with EPC contractors, infrastructure builders, renewable-construction specialists, and local delivery partners that want a place in South Africa’s clean-power buildout. That is a different value chain, but not a lower-value one. As battery systems become more modular, the industry sometimes talks as if projects are plug-and-play. They are not. Local geotechnical conditions, grid interfaces, roads, permitting, security, drainage, fire access, crane planning, cable routing, and utility requirements all determine whether a nominally standardized BESS can be built efficiently. The more storage gets paired with solar, wind, industrial loads, and wheeled private power, the more the construction partner has to coordinate across technologies. WBHO’s opportunity is to become part of the trusted execution stack for South African storage. Its limitation is that the company’s upside is tied to project flow rather than proprietary technology. A battery OEM can scale globally through product sales; an EPC contractor scales through relationships, teams, balance sheet, and delivery reputation. That makes execution history the moat. The broader read is that South Africa’s storage market will need more companies like WBHO as much as it needs cell suppliers. If Naos-1 and similar projects prove the private-power model, the next constraint may be how quickly the market can mobilize qualified construction capacity. WBHO is one of the companies positioned to answer that question. The bottom line: WBHO is a construction and infrastructure company with growing relevance to battery storage because the market is moving from announcements to build sites. In South Africa, that makes EPC capability a strategic part of the storage supply chain. Sources WBHO company site WBHO Kathu solar project profile Envision, SOLA Group, and WBHO Naos-1 BESS announcement ESS News coverage of Naos-1 CurrentCells Naos-1 storage profile