PVStop is a fire retardant solution that acts as a liquid blanket to make solar panels safe. In the event of a short circuit or an emergency (such as a fire or flood) solar panels continue to produce potentially lethal amounts of DC voltage.
PVStop is a fire retardant solution that acts as a liquid blanket to make solar panels safe. In the event of a short circuit or an emergency (such as a fire or flood) solar panels continue to produce potentially lethal amounts of DC voltage.
As the world increasingly turns to renewable energy sources like solar power, it’s crucial to address the unique challenges they pose, particularly in emergency situations such as fires. Recent discussions by the FDNY, highlighted in a CBS News New York video, shed light on the complexities faced by firefighters when dealing with solar panel installations.
The FDNY underscores the importance of awareness among first responders worldwide. While the industry often focuses on the causes of such incidents, solutions like PVStop offer effective mitigation strategies.
PVStop recognizes the ongoing efforts to improve safety, especially in larger-scale rooftop installations. However, it’s essential to consider the challenges presented by residential, smaller, and older systems. These complexities can significantly hinder firefighting operations and jeopardize lives and properties.
In response to these challenges, PVStop provides a simple yet powerful solution. By equipping firefighters and Fire Chiefs with the tools and knowledge needed to address solar panel-related risks effectively, PVStop empowers them to carry out their duties safely and efficiently.
Our commitment to enhancing firefighter safety extends beyond providing solutions; it involves fostering awareness and understanding of the risks associated with solar panel installations. By advocating for the widespread adoption of PVStop and similar initiatives, we aim to create safer environments for both firefighters and communities.
Together, let’s ensure that firefighters have the resources they need to tackle solar panel-related incidents confidently. With PVStop, we can make significant strides towards safer firefighting practices and ultimately save lives and properties.
The Rise of Solar PV Installations and Associated Risks The rise of solar photovoltaic (PV) installations in South Africa has significantly reshaped our energy landscape. As these installations proliferate, so do the associated risks, with fire safety emerging as a prominent concern. Municipalities are confronting challenges in effectively combating fires involving PV installations, highlighting the need for proactive measures. The Challenge: Fire Safety and PV Installations A critical issue facing our communities is the capacity of municipalities to combat fires involving PV installations effectively. The absence of specialized training and equipment makes firefighting in properties with solar panels a complex task. Firefighters often grapple with safely de-energizing solar panels, amplifying the risk of live electricity and potential secondary fires. Additionally, combating these fires necessitates significant water usage. While water is vital for fire control, excessive amounts can result in substantial property water damage, impacting roofing structures and causing interior damage. Solar panels’ persistent nature further complicates firefighting efforts. Damaged solar panels continue to produce energy when exposed to sunlight, posing risks of secondary fires. This risk escalates, especially the morning after a fire incident when sunlight triggers damaged cabling to arc again.
A Solution: Introducing PVStop To address these challenges, we present PVStop, a premium product engineered to safely de-energize PV systems. This innovative solution provides a simple and effective means to mitigate risks associated with PV installations during fire emergencies.
Case Study: An Incident with a 150kW High Voltage Hybrid System
This farm boasts two identical installations on its premises; behold the unscathed system in this image.
We recently collaborated with an insurance assessor on a concerning incident involving a newly installed 150kW 3-phase high voltage hybrid system. Despite its compliance with regulations, and protocols, and having received a Certificate of Compliance (COC), the system faced a potentially catastrophic fault.
Early detection was crucial. A fault below or within the PV combiner box triggered efforts to extinguish the ensuing electrical fire. While standard carbon dioxide fire extinguishers were used, the persistent arcing of DC current thwarted these efforts.
After the fire, the PV combiner box was removed.All cables leading to the inverter were either disconnected or cutAfter all the effort, this came dangerously close to complete destruction
The remote location of the installer, situated 200km away, presented logistical challenges. The recommended immediate solution was to de-energize the solar panels. However, lacking a disconnect between the PV array and the combiner box, the only viable action was to cut the PV cables close to the panel—a risky decision that contravened occupational health and labour laws.
Despite the inherent dangers, this intervention successfully disconnected the current to the PV combiner box, enabling effforts to manage the fire in the inverter room, where lithium batteries—known fire accelerants—were housed.
For educational purposes see the following : Check out this video depicting another scenario where DC cables had to be cut. Witness the creation of a DC arc and grasp the perilous nature of such efforts. This serves purely for informational purposes. The other video showcases how combiner boxes ignite and swiftly obliterate when arcing occurs. Prevention within PV combiner boxes is crucial, with Thermarestor offering a viable solution.
Root Cause Analysis The investigation into the exact cause is ongoing. Potential causes range from damaged cables within the conduit, human error with loose connections in the PV combiner box, rodent damage, to cable overheating. Implementing early detection methods, such as thermal inspections and monitoring technologies, could pre-emptively identify these issues.
Responsibility and Liability Determining responsibility in emergencies involving PV installations remains a contentious issue. Whether it’s the homeowner, body corporate, building owner, or installer, the question of liability is often unclear. This ambiguity can lead to challenges in addressing risks and implementing preventive measures effectively.
Conclusion The incidents involving solar panel installations in South Africa underscore the urgent need for action in fire safety. PVStop emerges as a practical solution to significantly enhance safety during fire emergencies involving PV systems.
For Managing Agents, trustees, committees, and service providers, staying informed and proactive is paramount. Embracing innovations like PVStop and advocating for clear guidelines on responsibility during emergencies can foster safer communities and sustainable growth in the renewable energy sector. Let’s prioritize safety, collaboration, and innovation to navigate the evolving landscape of renewable energy in South Africa, ensuring a brighter and safer future for all.
PV Modules safety during disasters and emergencies
The Western Cape and surrounding areas are currently facing the wrath of intense storms, with GaleForce winds causing widespread havoc. In the midst of this tumultuous weather, it is absolutely crucial to prioritize the safety of your solar modules and roofs. The damage caused by these storms can be catastrophic, leading to significant financial losses and posing risks to both property and lives.
We have witnessed numerous instances of roofs being torn off and solar modules being damaged or completely dislodged by the force of the winds. Such incidents not only result in immediate damage but can also disrupt the functionality of your solar energy system, leading to prolonged downtime and additional expenses for repairs.
To safeguard your property and loved ones, it is imperative to take proactive steps today. The first and most important action is to call your solar installer immediately to schedule an inspection of your solar modules. Do not delay, as early intervention can prevent further damage and ensure the safety of your system.
During the inspection process, your installer will advise you to switch off the PV array from your inverter at the PV Combiner box. This step is essential to prevent any additional load on the system until a thorough assessment is complete. Keep in mind that even when switched off, solar modules remain live when exposed to sunlight, so exercise caution and follow your installer’s instructions diligently.
Your installer will carefully disconnect the MC4 connections from each module and conduct a meticulous inspection for any visible damage or signs of wear and tear. While some issues may not be immediately apparent, thermal imaging technology can help detect faults and hotspots accurately, ensuring that no underlying problems go unnoticed.
It is crucial to prioritize safety at all times and avoid attempting any DIY repairs, especially when it comes to tasks involving height-related risks and electrical hazards. Keep a vigilant eye on your system for any signs of arcing, smoke, or fire, and if you have any doubts or suspicions, do not hesitate to contact your local fire department immediately.
In situations where immediate de-energizing of PV modules is necessary during emergencies, PVStop provides a reliable solution. PVStop is designed to safely deactivate PV modules, offering peace of mind during critical situations. Once repairs and maintenance are complete, simply peel off PVStop, restoring your system to its optimal functionality.
For assistance and advice regarding fire suppression and safety measures, contact Real Fire Suppression (Based in CapeTown). Gregory Jordaan and Joe Smith are dedicated experts in the field, ready to provide guidance and support when you need it most.
Visit www.pvstop.co.za to access valuable information on the risks associated with storms and learn how to mitigate them effectively. Let’s work together to prioritize safety and minimize the risks posed by GaleForce winds and other emergencies. Stay safe, everyone!
We extend our heartfelt gratitude for sharing this remarkable success story. Kudos to the London Fire Brigade for their swift action and dedication to training, alongside all the esteemed partners. This case exemplifies the essence of why PVSTOP was developed – to mitigate risks and ensure safety in challenging situations.
Amidst the tragedy, this moment stands as a beacon of pride. The outcome could have been vastly different, but thanks to the preparedness and training of the London Fire Brigade, disaster was averted. Their adept handling of the situation, utilizing PVSTOP to safely de-energize the solar panels, enabled them to combat the fire effectively without endangering the crew.
The report not only sheds light on the incident but also emphasizes the solution that contributed to its resolution. It’s a testament to the importance of awareness and proactive measures in ensuring safety. We are honored to have played a role in this success and remain committed to furthering safety standards in the South African market.
Special thanks to Ezekiel Bertrand and Your Local Guardian for their comprehensive coverage of the event, highlighting the significance of PVSTOP in firefighting operations. Together, we strive towards a safer and more secure future.
