On 28 March 2009, a group of around 30 people took part in a rally at the power station ahead of the 2009 Earth Hour. Two protesters chained themselves to a conveyor belt, briefly disrupting the supply of coal between the Hazelwood mine and the power plant. Again, electricity production was not disrupted from the power station despite large community outcry against the plant's operations. Three people were charged by Victoria Police for unspecified reasons. On 21 May 2009, 14 Greenpeace members illegally entered the site and thought they had temporarily shut down coal production after chaining themselves to an excavator. That 'excavator' was out for routine maintenance and again, no production from either mine or station was lost. All seven were later charged by Victoria Police.