Features of equipment, system and facilities

Largest PV system installed by any local water supply authority

Rather than simply installing a shade cover to control algae growth in the sediment pond (sloping panel type), Murano Water Treatment Plant used the vast area of the pond to install solar cell panels. This resulted in a large 360 kW PV power generation system.

Use of the moveable solar cell frame

When the panels were installed over the sediment pond, wheels were attached to the panel frames so they could be easily moved by staff carrying out maintenance work, such as cleaning the bottom of the pond.

Effect

Introduction effect:

	Reduction in electricity costs	····· about ¥4 million/year
	Reduction in CO2 emission	····· about 129 t-c/year

Educational effect: More than 10,000 people visit Murano Water Treatment Plant in a year, and the plant tour also takes in the PV power generation system. The plant’s PR effort to promote itself as being an environmentally friendly facility is also serving to educate people about the importance of working to improve our environment. The plant is also expanding its PR effort through its internet home page (only in Japanese).

URL: http://www.pref.osaka.jp/suido/josuijo/muranojosuijo/murano.htm