A black start power supply provides emergency power when the main supply is interrupted by disasters or other unforeseen events.
It ensures the continued operation of essential equipment and enhances resilience at critical facilities such as large buildings and evacuation centers.

In recent years, large-scale power outages caused by earthquakes—such as the Hokkaido Eastern Iburi and Kumamoto earthquakes—and major typhoons have become more frequent. These outages can disrupt communication networks, halt elevators and transportation systems, and cause food spoilage due to refrigerator failure. In medical facilities, power loss may lead to serious malfunctions in life-support and treatment equipment.

Air-conditioning outages also pose significant health risks, particularly during Japan’s hot and humid summers. Rapid rises in indoor temperature increase the likelihood of heat-related illness, especially among the elderly and those with health conditions.

As these risks grow, so does the demand for black-start power systems that can maintain power during emergencies.

During large-scale power outages, the electricity supply stops and essential equipment such as lighting, televisions, refrigerators, air conditioners, and mobile-device charging becomes unavailable. Because such events are tied to natural disasters, their timing and duration are unpredictable.

Given the increasing frequency of extreme heat due to global warming, maintaining air-conditioning operation is critical to prevent secondary health risks.

Yanmar offers a lineup of “High Power Plus” GHP systems that can maintain air conditioning even during power outages.
For more information, please feel free to contact us.