Nigeria Addresses Rising Fire Hazards Linked to Rooftop Solar Installations
The Federal Government, through the Nigeria Electricity Management Services Authority (NEMSA), has raised concerns about the increasing fire incidents associated with poorly installed rooftop solar power systems across the nation.
With persistent power outages plaguing Nigeria’s electricity sector, many citizens are turning to solar energy as a viable alternative. However, the government and the public are alarmed by the growing number of fires linked to these rooftop solar systems.
NEMSA issued a public notice emphasizing critical safety issues, highlighting that many incidents stem from inadequate craftsmanship, the use of substandard materials, and non-compliance with established technical standards and regulations. The agency’s chief electrical inspector described the trend as deeply troubling, stressing the urgent need for improved installation practices.
While the push for renewable energy aligns with Nigeria’s energy transition objectives, NEMSA is clear that safety must remain paramount. In compliance with the Electricity Act of 2023, the agency has rolled out detailed safety guidelines for solar power system installations throughout the country.
To ensure safety and compliance, NEMSA advises the public to engage only NEMSA-certified solar PV system installers. These professionals possess the requisite skills and knowledge of the technical standards necessary for safe installations. The authority’s new guidelines strictly mandate that only NEMSA-certified electrical contractors undertake rooftop solar installations.
NEMSA’s guidelines emphasize the importance of conducting a load assessment prior to installation to confirm that the solar system is correctly sized for safe operation. Additionally, the integrity of the roof structure is crucial; it must be able to support the solar installation without compromising safety.
The authority warned that solar panels must be securely mounted; inadequate mounting can lead to roof damage and fire risks. Furthermore, it is essential to avoid using damaged modules, such as those with cracks or bent frames, as they pose significant safety hazards. Adequate clearance for ventilation and cooling of the solar modules is also vital to prevent overheating and ensure optimal system performance.
NEMSA insists on the installation of dedicated DC and AC isolators for emergency shutdowns, as well as protective circuit breakers and surge protectors to mitigate the risk of electrical overloads and lightning strikes. Proper earthing of the system is equally crucial to maintain safety.
Battery safety is another critical component of NEMSA’s guidelines. Batteries should be installed in well-ventilated areas, away from heat sources, and must include a battery management system to regulate temperature. When installing a solar system on an existing roof, proper load separation is necessary if the system cannot support the entire household demand.
Moreover, NEMSA recommends that installers and owners regularly maintain their rooftop solar installations. This includes cleaning solar panels to avoid dust accumulation and monitoring cables, connectors, and inverters for any signs of wear. Adhering to these guidelines is essential for ensuring the safety, performance, and regulatory compliance of solar systems.
