Disaster Prevention Photovoltaic System

Urban Development

conceptual image of the system

Introduction of the system to designated evacuation centers

Immediately after the disaster, electricity, gas and gasoline supplies were suspended, causing various problems during the initial disaster response such as the operation of evacuation centers.

By FY 2015, based on our experiences of the disaster, we had introduced a solar power generation system combined with a storage battery to 194 facilities, including elementary and junior high school buildings, which are used as designated evacuation centers during a disaster. With this system, a stand-alone power supply is secured when a disaster occurs while reducing CO2 emissions in normal circumstances.

During power outages, electricity is supplied from the system during the day and from the storage battery during the night. This allows operation of information communications equipment such as disaster prevention radios and televisions as well as lamps.

System features

	Daytime	Night-time
Normal circumstances	Electricity generated by solar power is Supplied and contributes to the reduction of CO₂ emissions.	Electricity generated by solar power is Supplied while concurrently storing it in a storage battery.
During power outages	When the storage battery is in a state of discharge, it is charged overnight.	Electricity charged during the day is supplied.

Introduction to private facilities

Solar panels on the roof of a junior high school building

Sendai City is subsidizing half of the cost required to install systems for renewable energy sources in private facilities that can be used as regional disaster response centers during a disaster according to the designation under the Sendai City Regional Disaster Prevention Plan.

InquiriesDisaster-Resilient and Environmentally-Friendly City Promotion Office,
City Planning Policy Bureau
mac001640@city.sendai.jp