A nuclear power plant worker obsessed with counting sets a maximum limit on how much electricity he wants to consume. The energy that should have lasted him for the rest of his life is slowly running out, forcing him to decide on its final use. 3 MWh is a film poem about degrowth and shows what it would look like if humans stopped putting themselves at the centre of nature. 16mm analogue footage digitally damaged by recorded electrical discharges based on the protagonist's voice demonstrates the relationship between humans and material reality.