Charging facilities for electric vehicles (EV)

Background
On the roof of our headquarters building, we have been operating a solar power generation system with power storage functions that uses electric double layer capacitors since 2004. In addition, we were also early to begin efforts to develop, for example, a grid-connected power leveling storage system for electricity produced by wind power generation. Utilizing these technologies, we have realized the practical implementation of charging facilities for electric vehicles.

① Electric double layer capacitor power storage bank

② Solar power generation panels on the roof of our headquarters

Compact Quick chargers for EV

Our Quick Chargers are compact size for EV charging under CHAdeMO standards. They achieve 50% space savings and 66% weight savings when compared to existing models. (30kW product)

External
dimensions
: 600mm(W) × 350mm(D) × 0650mm(H) (10kW)
350mm(W) × 595mm(D) × 1565mm(H) (20kW,30kW)
350mm(W) × 880mm(D) × 1565mm(H) (50kW)
Weight : 65kg (10kW)
150kg (20kW)
170kg (30kW)
220kg (50kW)

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The world's smallest and lightest Quick Chargers

Compact Quick Chargers for EV

A solar-powered and grid-connected dual rate EV charger with a power storage bank

This facility, which is installed in the Kyoto Prefectural Government Office, combines 20 kW of solar power generation with 10 kWh of power storage and includes one outlet for rapid charging and two for regular charging, so three electric vehicles can be charged at the same time without producing CO2 emissions. Since a rapid charging system requires a high power capacity, high voltage power reception is usually necessary, and the expense related to the installation of power reception equipment and wiring is a great burden. Since our rapid charging system conducts rapid charging from storage batteries, we have made it possible to install this system even without having high voltage power reception equipment.


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System at Kyoto Prefectural Government Office

System at Kyoto Prefectural Government Office

Charging facilities with solar power generation and power storage functions

This facility stores the electricity generated by solar power in electric double layer capacitors and lithium ion batteries. By providing this energy to electric vehicles, charging is possible without any CO2 emissions. Moreover, the power storage function makes stable charging possible even during rainy weather, at night and during commercial power outages due to disasters. This power generation fluctuates, but the power supply is leveled by using electric double layer capacitors for charging and discharging, which also contributes to extending the lives of the lithium ion batteries. We have delivered the same facilities to the Kyoto City Nishikyogoku Sports Park and the Municipal Science Center For Youth.


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System at the Kyoto City Nishikyogoku Sports Park

System at the Kyoto City Nishikyogoku Sports Park

Participation in the Keihanna Low-Carbon Zero-Emission Society Demonstration Project

In cooperation with the Foundation of the Kansai Research Institute and other organizations, we have begun operation of a demonstration facility for a system that rapidly charges electric garbage trucks in the town of Seika in Kyoto Prefecture. This facility uses energy from solar power generation and extracts energy from household garbage, which is collected with the cooperation of local residents, by decomposing it using steam superheated to about 800℃ and then generating energy from it in a gasification furnace. Moreover, in this low-carbon zero-emission project, electric vehicles charged using this energy transport the carbonized garbage to nearby farms where it is used as fertilizer.

Utilization of carbonized gas from garbage and natural energy (solar power)

System structure
 
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