By Anja Visagie, Chief Growth and Marketing Officer, Sustainable Power Solutions (SPS)
South Africa’s Commercial and Industrial (C&I) sectors have moved decisively past the initial phase of solar awareness. For years, businesses asked whether renewable energy made financial sense. Today, they understand the core benefits: lower electricity costs, improved sustainability performance, and long-term operational resilience. The focus has shifted from exploration to execution.
However, as the first major wave of legacy installations matures, a significant and costly challenge is emerging across the South African market: asset underperformance. Many early adopters are finding that their solar systems are failing to deliver the level of savings and energy output originally expected. Whether due to insufficient maintenance, inadequate cleaning, limited performance oversight, equipment faults, or a lack of continuous monitoring, what once looked like a straightforward investment has often become a source of operational frustration.
Faced with shifting electricity tariffs and growing operational demands, businesses are discovering that managing maintenance schedules, monitoring system performance, tracking equipment warranties, and coordinating multiple service providers consumes valuable internal time and resources. Rather than delivering hassle-free savings, these systems have introduced a layer of operational complexity that many organisations are not equipped to manage internally.
Unpacking the root of underperformance
One of the most common causes of solar underperformance is surprisingly simple: poor maintenance. Because solar systems have few moving parts and are often installed out of sight on rooftops, many businesses assume they require minimal attention once commissioned. In reality, solar plants require regular cleaning, performance monitoring, and preventative maintenance to operate optimally.
The problem is particularly prevalent among early adopters that purchased systems outright and assigned maintenance responsibilities to internal technical teams. In many cases, these employees already have full-time responsibilities and lack the specialised expertise or capacity needed to proactively manage solar assets. As a result, performance issues often go unnoticed until significant savings have already been lost.
Dirty panels, faulty components, inverter issues, and other minor defects may not stop a solar plant from operating altogether, but they can gradually reduce energy production over time. Without proper monitoring systems in place, businesses may only realise months later that their solar investment has been underperforming.
Compounding these technical challenges is fragmented accountability, which frequently leaves businesses caught in the middle of disputes between original installers, component manufacturers, and independent service providers.
This operational burden is particularly heavy for businesses that opted for an upfront Engineering, Procurement and Construction (EPC) capital-purchase model. While this structure offers high theoretical returns, it also places the long-term responsibility for maintenance, performance, and operational management directly on the company.
The strategic case for asset buyouts
To address this challenge, a growing number of South African enterprises are turning to solar asset buyouts and performance recovery programmes. Specialist operators are now stepping in to acquire underperforming legacy plants, taking over complete operational, technical, and contractual responsibility for the system.
Through an asset buyout, a specialised energy partner purchases the physical infrastructure from the business, often at or near the original purchase value depending on the condition and performance of the asset, effectively injecting capital back into the client’s operations. The existing setup is then transitioned into a funded energy model, such as a Power Purchase Agreement (PPA) or a structured lease.
Under this structure, the business pays only for the energy the system produces or a fixed monthly rental fee, while the specialist operator assumes ownership and operational responsibility. This allows organisations to focus on their core business while transferring the responsibility for maintaining and optimising the solar asset to a specialist provider.
The model also reduces performance risk for the client. Because the customer pays only for the electricity produced, the energy provider is incentivised to ensure the system operates as efficiently as possible.
Engineering the turnaround
Restoring an underperforming asset to peak efficiency requires an integrated engineering approach. Specialised operators deploy targeted optimisation programmes designed to improve system performance and maximise energy yield:
- Preventative and corrective engineering: Conducting thorough site audits, resolving thermal stress points, and replacing degraded wiring or panels.
- Inverter and component refurbishment: Upgrading legacy inverter setups to modern, high-efficiency units that align with changing grid requirements.
- Advanced digital optimisation: Integrating intelligent remote analytics and automated control systems to track performance data hour by hour, catching faults before they impact output.
- Purpose-driven battery integration: Where systems require optimisation, evaluating specific battery use cases (such as peak demand management or load shifting) to ensure energy storage has a defined, measurable business case rather than just serving merely as costly additions.
Selecting the right turnaround partner
Securing real value from an underperforming solar plant depends on choosing a partner with a proven track record, strong technical expertise and sufficient financial backing. Because commercial solar systems are designed to operate for decades, businesses should seek a provider with the long-term stability required to support the asset throughout its lifecycle.
Companies should also look for providers with established service teams and support capabilities in their operating regions, ensuring that assistance is readily available when required.
This financial strength allows a qualified partner to act as a single point of accountability. Instead of internal teams wasting time coordinating suppliers, disputing performance issues, or managing warranty claims, one specialised provider assumes responsibility for the system and its associated agreements.
In many cases, existing maintenance agreements, warranty arrangements, and contractual obligations can be transferred to the acquiring operator, further simplifying administration for the customer.
In a changing power market, optimising existing solar assets is becoming just as important as building new ones. By addressing underperformance, recovering trapped value, and transferring operational responsibility to experienced specialists, businesses can unlock the full potential of their solar investments while gaining greater certainty over future energy costs.