A major fire at a cold storage facility in Boyle Heights, California, has sparked discussion across the global solar industry.
While the incident happened thousands of kilometres from Namibia, the questions it raises are relevant to every business, farm, warehouse, and industrial facility that relies on solar power.
The facility’s rooftop solar installation was involved in the fire, which later escalated after affecting ammonia refrigeration infrastructure within the building. Initial statements from the tenant company indicate that the blaze appeared to originate on the roof while a third-party contractor was conducting testing on the massive solar array. The event attracted international attention and remains under official investigation.
At this stage, it is important to be clear: it is too early to determine the root cause of the fire, and the industry should avoid jumping to conclusions.
However, the incident highlights an important lesson that applies just as much in Windhoek, Otjiwarongo, Swakopmund, and across Namibia as it does in California:
Installing a solar system is only the first step. Long-term performance, reliability, and safety depend on proper Operations & Maintenance (O&M).
Solar Is an Asset, Not a One-Time Project
Many businesses view solar as a construction project. Once the installation is complete and the system starts generating electricity, attention shifts elsewhere.
But a commercial rooftop solar system is not simply equipment mounted on a roof. It is an energy-generating asset expected to operate for 25 years or more.
Like any critical business asset, it requires ongoing inspection, monitoring, maintenance, and periodic testing. However, as the California incident reminds us, testing and maintenance themselves introduce risks if not managed with absolute precision. Operations on high-voltage commercial arrays require highly specialized protocols. Without qualified engineering oversight and strict adherence to safety standards during routine interventions, small issues can develop unnoticed or be triggered during testing:
- Loose electrical connections
- Damaged connectors
- Water ingress
- Thermal hotspots
- Component degradation
- Wiring faults
- Reduced system performance
Most of these issues begin as minor maintenance concerns. Left unchecked, they can become expensive operational problems.
O&M Is Much More Than Cleaning Solar Panels
When people hear “solar maintenance”, they often think about cleaning panels.
Cleaning is important, particularly in Namibia’s dusty environment, but professional Operations & Maintenance goes much further.
A proper O&M programme includes:
- Thermal imaging inspections to identify hotspots, failing connections, and microcracks before they become larger problems.
- DC cable insulation testing to detect deterioration, moisture ingress, or damage caused by heat and UV exposure.
- Grounding verification to ensure the system continues to operate safely and in compliance with electrical standards.
- Torque testing of electrical connections to identify loose terminals that can create resistance, overheating, and potential fire risks.
- Inverter inspections and performance checks to verify that protection systems are functioning correctly.
- Ongoing monitoring and performance analysis to detect faults that may not be visible during routine site visits.
Many electrical failures begin with small temperature increases, loose connections, or damaged insulation. These issues can remain invisible for months without specialist inspections.
The objective of O&M is simple: identify and correct problems before they affect safety, system performance, or business operations.
Why This Matters for Solar Owners in Namibia
Across Namibia, businesses are investing heavily in solar to reduce electricity costs, protect themselves from rising grid tariffs, and improve energy independence.
Whether it is a commercial building in Windhoek, a logistics facility in Walvis Bay, a manufacturing plant, or a farm operating water pumps in remote areas, solar has become a critical business asset.
That investment deserves long-term protection.
Namibia’s operating environment creates challenges that make professional maintenance even more important than in many other markets.
Dust and Sand
Dust accumulation is common across much of Namibia and can be particularly severe in coastal regions such as Walvis Bay and along the Atlantic coastline.
While most owners understand that dust reduces energy production, the risk goes beyond lower yields.
Uneven soiling caused by bird droppings, wind-blown sand, or partial dust coverage can create hotspots within individual solar modules. Over time, these localised temperature increases can accelerate module degradation, damage cells, and reduce long-term performance.
Regular inspections and thermal imaging help identify these issues before they affect the overall system.
Extreme Temperatures
Inland regions of Namibia regularly experience extreme summer temperatures.
Solar modules, inverters, switchgear, and electrical connections operate under significant thermal stress throughout the year.
Repeated heating and cooling cycles place continuous strain on electrical components. Connections can loosen, insulation can age prematurely, and equipment may begin operating outside its optimal conditions.
Without regular inspections, thermal imaging surveys, and verification of protection systems, small defects can worsen over time.
This is one of the reasons why preventative maintenance is so important in high-temperature environments. Equipment that performs perfectly during commissioning may develop issues years later as components age under Namibia’s harsh operating conditions.
Coastal Corrosion
For installations near the coast, salt-laden air creates another challenge.
Corrosion can affect electrical enclosures, connectors, mounting structures, and grounding systems if not properly monitored and maintained.
Regular inspections help identify early signs of corrosion before they impact performance or require costly repairs.
The Cost of Ignoring O&M
When businesses evaluate solar investments, they often focus on installation costs and expected energy savings.
What is frequently overlooked is the cost of neglecting maintenance.
A poorly maintained system can lead to:
- Reduced energy production
- Higher operating costs
- Unexpected downtime
- Shortened equipment lifespan
- Increased repair expenses
- Safety risks
For industrial facilities, the consequences can extend far beyond the solar system itself.
When critical infrastructure, refrigeration systems, production processes, water pumping operations, or tenant activities depend on a facility operating normally, any disruption can quickly become a business issue rather than simply a technical one.
Early Detection Prevents Bigger Problems
One of the most valuable functions of professional O&M is identifying issues before they become failures.
Routine inspections, thermal imaging, electrical testing, and performance monitoring allow technicians to detect abnormal operating conditions long before they affect production or safety.
The goal is straightforward:
Find and fix problems while they are still maintenance tasks – not emergency events.
O&M Protects ROI
For most businesses, the purpose of solar is straightforward:
- Lower electricity bills
- Improve operating margins
- Reduce exposure to future tariff increases
- Increase energy independence
Those financial benefits depend on the system continuing to perform as designed.
Professional O&M helps ensure:
- Maximum energy production
- Early fault detection
- Longer equipment life
- Reduced downtime
- Better long-term financial returns
In other words, O&M is not an additional cost.
It is part of protecting the investment.
A Lesson Worth Remembering
The Boyle Heights fire remains under investigation, and the industry should avoid speculation until the facts are known.
But one lesson already stands out.
Commercial solar systems should not be treated as “install and forget” assets.
They require the same mindset applied to other critical infrastructure: regular inspections, professional maintenance, continuous monitoring, and accountability throughout their operating life.
For Namibia’s growing solar market, that lesson is especially relevant. Solar systems operate under intense UV exposure, extreme temperatures, dust, sand, and coastal weather conditions that can accelerate wear on equipment if left unchecked.
The businesses that achieve the strongest long-term performance are typically the ones that view solar not as a completed construction project, but as an operational asset that requires ongoing attention.
Because in the end, the most valuable solar system is not simply the one that is installed correctly.
It is the one that continues to operate safely, reliably, and profitably year after year.