PV Fire Risk: Insurance Compliance in South Africa
Across South Africa’s fast-growing solar industry, the fire risk associated with photovoltaic (PV) installations remains one of the most misunderstood aspects of both building compliance and insurance liability. While fire departments operate under the Fire Brigade Services Act (No. 99 of 1987), insurers and property owners share parallel obligations under the Occupational Health and Safety Act (No. 85 of 1993), the National Building Regulations and Building Standards Act (No. 103 of 1977), and the National Environmental Management Act (No. 107 of 1998) to manage these evolving hazards responsibly.
The Compliance Context
Under Section 8 of the OHS Act, employers and property owners are required to identify and mitigate foreseeable risks, including electrical and fire hazards introduced by PV systems. Similarly, SANS 10400-T (Fire Protection) stipulates that any building modification, such as a rooftop solar installation, must maintain adequate fire resistance, access, and suppression measures.
The Fire Brigade Services Act, through Sections 8, 9, and 15, empowers fire authorities to act on risks and salvage property at risk, it also expects proactive prevention. Insurers, meanwhile, rely on the same statutory framework to evaluate reasonable practicability and due diligence in risk management, particularly when assessing claims arising from PV-related fires.
Insurance Exposure and Risk Alignment
In the insurance sector, PV fire incidents represent a critical overlap of electrical, structural, and environmental liability. Conventional firefighting often results in secondary water and electrical damage, extensive claim delays, and environmental contamination. These outcomes directly affect underwriting exposure, claims settlement timelines, and reputational risk.
Leading South African insurers — including Santam, Hollard, King Price, and Old Mutual Insure — already assess renewable energy risks under combined fire and engineering policies. However, many policies are yet to fully reflect the specific challenges posed by live DC systems during fires. Products like PVSTOP offer a practical solution that enables both risk mitigation and regulatory compliance by safely encapsulating live PV modules to de-energize them during emergencies.
Regulatory Integration and ESG Compliance
PVSTOP aligns directly with multiple South African statutes and standards:
- Fire Brigade Services Act (99/1987) – Recognised as “equipment” for fire prevention (Sec. 1(vii), Sec. 15).
- Occupational Health and Safety Act (85/1993) – Supports hazard identification and mitigation duties (Sec. 8).
- National Building Regulations – SANS 10400-T – Contributes to compliance with fire protection and access requirements.
- Disaster Management Act (57/2002) – Aids preparedness and response at municipal level.
- National Environmental Management Act (107/1998) – Prevents toxic runoff through non-hazardous, encapsulated nanoparticles.
By integrating PVSTOP into loss prevention protocols and underwriting frameworks, insurers can demonstrate alignment with national legislation, environmental stewardship, and ESG mandates increasingly demanded by both investors and global reinsurers.
The Case for Insurer Adoption
For insurers and risk engineers, recommending or requiring PV fire-mitigation systems is no longer a peripheral measure, it is a demonstrable act of compliance and prudent underwriting. Incorporating PVSTOP within insurer-approved risk-control lists delivers measurable benefits:
- Reduces fire spread, reignition, and secondary damage
- Accelerates site clearance and claim processing
- Minimises business interruption and income loss
- Provides proof of compliance with national safety regulations
- Strengthens insurer credibility in sustainability and ESG reporting
South Africa’s legal framework already supports the proactive use of PV fire-mitigation products. What is now required is alignment between insurers, risk assessors, and emergency services to close the compliance gap.
By integrating PVSTOP into their underwriting and loss-control policies, insurers not only reduce claims exposure but also uphold their duty to promote safety, environmental responsibility, and resilience across the renewable-energy sector.
Understanding PV Fire Hazards: A Simple Explanation
Direct Current (DC) power — generated by solar panels — behaves differently from the alternating current (AC) used inside buildings.
When sunlight hits a solar panel, electricity flows immediately and continuously through DC wiring, even if the system is switched off. Unlike AC power, which alternates direction and can be interrupted by circuit breakers, DC current flows in one constant direction and can continue to arc and sustain a fire if not properly isolated.
This means that during a building fire, as long as sunlight reaches the panels, the PV system remains live and dangerous. Conventional extinguishers or water cannot safely neutralize this energy source.
PVSTOP works by coating the solar modules with a special non-conductive film that blocks light from reaching the photovoltaic cells — effectively cutting off the source of power generation at its origin. Once the “sunlight source” is eliminated, the DC current stops, allowing responders and insurers to safely manage the fire scene, prevent reignition, and protect property and personnel.
Key Definitions for Non-Technical Readers
DC (Direct Current):
A continuous flow of electric charge in one direction, produced by solar panels whenever sunlight is present. Unlike AC, it cannot be switched off easily and remains energized during daylight and light.
AC (Alternating Current):
The standard form of electricity used in homes and offices, which changes direction rapidly and can be safely interrupted by circuit breakers.
Mitigation:
Any proactive step taken to reduce the severity or likelihood of an incident. In fire safety, mitigation includes systems or materials designed to limit fire spread, heat, or ignition.
ESG (Environmental, Social, and Governance):
A framework used by investors and insurers to evaluate the sustainability and ethical impact of an organization.
- Environmental considers ecological responsibility and pollution prevention.
- Social focuses on safety, fairness, and community well-being.
- Governance examines accountability and ethical management practices.
Insurers increasingly integrate ESG performance into underwriting and risk-assessment policies.
Reasonably Practicable (OHS Act Term):
A legal standard under Section 8 of the OHS Act that requires employers and property owners to take all steps that are feasible, given the risk level and available technology, to prevent harm.
Fire Re-Ignition:
When a fire that appears extinguished flares up again due to residual heat or live electrical current — a major risk in PV systems if DC power remains active.
Non-Conductive Coating:
A specialized layer or spray that does not carry electricity, used to insulate live equipment or prevent electric current flow — the principle behind PVSTOP’s light-blocking safety application.
