AAP: Police have arrested 25 protesters at one of Australia’s largest power stations, but four others remain chained to machinery at the site, halting electricity production. Four members of action group Rising Tide are padlocked to the conveyor belt which feeds coal to the furnace at the government-operated Bayswater power station in the NSW Hunter region. The peaceful protest, which started at about 8am (AEDT) on Saturday, aims to highlight the urgency of reducing greenhouse gas …