Reference Case

Reference Case of LED Road Messenger (Company S)

Road Showing Power Supply Company S Case Study

Location Kanto/Tokai (Off grid area)
Purpose Power supply system for Road indicator lights on expressways
Power consumption Average power 30W
Load LED Road messenger
Fuel Cell System Specification 1set of EFOY 800 Pro Duo JP (45W) is used.
Output AC100V
Methanol volume 10 L × 3 pieces (30L)
Storage amount of electricity 30,000Wh
Number of operation days 42 days (for Fuel Cell only)
Issues In winter and rainy seasons, solar panels can’t supply electricity stably and the displays turned off.
Solution Solar panels and Fuel Cell provides a stable supply of electricity in winter and rainy seasons.